International Scientific Expo on

Laser Optics and Photonics

Day - 1

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Silicon Photonics: Light Amplification and Generation


   Hans Joachim Eichler
   Technical University Berlin,Germany

Silicon photonics denotes optical systems analog to electronic systems and circuits. Photonic devices for light generation, amplification, modulation, switching, deflection, processing and detection of light can be constructed from bulk silicon or on a CMOS platform. Thus, silicon photonic chips are expected to meet the increasing data and bandwidth demands of a worldwide internet. According to a 2018 report, the silicon photonics market is mainly driven by data center demands. Numerous other applications like fiberoptic communications, autonomous driving and sensing, are investigated for further massive deployment. Due to the CMOS compatibility, integration of optical and electrical signal processing on one single platform enables ultra-high data rate transmitter modules for data center, or even on chip communications. In Berlin, we started to investigate nonlinear optical effects in bulk Silicon and then designed and characterized integrated waveguide structures produced in the CMOS fab IHP. The effective confinement of optical waves in Silicon nano-waveguides leads to nonlinear four-wave mixing and Stimulated Raman Scattering based on interaction between light and sound waves. SRS is useful for light amplification and frequency shifting generating integrated frequency combs. Strong nonlinear optical effects in Silicon are due to generation of electron hole pairs changing the absorption and refraction. These bulk effects have been first investigated in Silicon wafers leading to defocusing, grating formation and picosecond pulse amplification. Later, electrical carrier injection into pn-junctions was used to construct fast electrooptic modulators which are integrated into transceivers for optical data transmission. The spin-off company Sicoya intends to start production of these devices in 2019 using diode lasers based on InP. However, it is desirable to use Silicon light sources instead. Therefore, the talk will conclude with a description of Si-Leds and research for development of Silicon lasers.

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Peculiarities of light absorption by spherical microcapsules


   Yury Geints
   Department of Wave Propagation, V.E. Zuev Institute of Atmospheric Optics, Russia

We address the peculiarities of optical radiation absorption in a poly-layer spherical microparticle which simulates an inorganic/organic poly-shell absorbing microcapsule with a water-based cargo. By means of the finite-difference time-domain technique (FDTD), the spatial distribution of absorbed light power in microcapsules of various sizes and internal structure is numerically simulated. We have engineered the optimal structure of a capsule that provides for light absorption enhancement and consists of a strong refracting transparent coating and an absorbing layer which covers a liquid core. The proposed multi-layer microcapsule prototype provides for a manifold increase in the absorbed light power density in comparison with usual single-layer absorbing capsule. We show that for wavelength-scale microcapsules it is optimal to use a material with the refractive index larger than 2 as an outer shell, for example, titanium dioxide (TiO2). The highest values of the absorbed power density can be obtained in microcapsules with absorbing shell thickness of approximately /10 . When laser radiation is scattered by a dimer constituted by two identical absorbing microcapsules the absorbed power density can be maximized by choosing proper dimer spatial configuration. In the case of strongly absorbing particles, the absorption density is maximal if the distance between capsules is about one capsule diameter. For weakly absorbing particles, light absorption increases when particles in the capsule are in geometrical shades of each other.

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Fabrication and Optical Characterization of Polyvinylidene Fluoride/Neodymium Oxide Nanocomposite Films


   M. D. Aggarwal
   Alabama A&M University

Ferroelectric materials are called ‘smart materials’ as they can be configured to store, release, or interconvert electrical and mechanical energy in a well-controlled manner via their respective characteristics. They have exceptionally large piezoelectric compliances, pyroelectric coefficients, dielectric susceptibilities, and electro-optic properties. Thus, are attractive for variety of applications such as high energy density capacitors, actuators, sensors, ultrasonic imaging devices, pyroelectric thermal imaging devices, gate insulators in transistors, electro-optic light valves, thin-film memory elements, multiferroic transducers, energy harvesters, etc. Ferroelectric polyvinylidene fluoride (PVDF) is utilized in a wide range of devices due to their excellent mechanical properties, optical, high thermal and chemical stability, piezoelectricity, pyroelectricity, and ferroelectric responses. In the present investigation, the pristine and neodymium oxide (Nd2O3) nanoparticles embedded poly vinylidene fluoride (PVDF) thick films were fabricated via solution casting/intercalation technique. The Nd2O3 nanoparticles were synthesized via hydrothermal technique. The Fourier Transform Infrared Spectroscopy (FTIR) has been recorded in the range 500 to 4000 cm-1 and functional groups were identified in the nanocomposite films. Infrared vibrational spectroscopy (FTIR/Raman) revealed intrinsically presence of ferroelectric β-phase in the annealed nanocomposite films. All-important optical constants have been determined for the first time via UV-VIS transmission spectroscopy for the nanocomposite films in the ferroelectric phase. The ultraviolet-visible spectra showed that the fabricated firms have wide optical transparency in the entire visible region. *The partial support for this work through the National Science Foundation (NSF) grant RISE-HRD 1546965 is acknowledged

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Analysis of heat transfer in a closedcavity ventilated inside


   Omar Benseghir
   Energetic, Algeria

The numerical simulation in fluid mechanics (CFD: Computational Fluid Dynamics) has become an indispensable tool in innovative systems development process in various fields of industry (energy, process chemistry, hydraulics, pollution and environment ...) . This tool has steadily developed over the last fifty years which allowed a boom not only theoretical knowledge of physical phenomena, but also practical applications in the fields already mentioned. This increase is mainly due to the simultaneous development of numerical methods and computer means. The heat transfer by convection is far, a basic principle for many industrial applications. Among these is the ventilation of confined spaces. The geometric diversity of these confined spaces and their heating or cooling mode is a vast field of study in which we propose to make a modest contribution with the subject "Analysis Of Thermal Transfer In A Ventilated Cavite.

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Optimization of a passive ultrafast fiber laser based on saturable absorbers for gas sensing applications


   Laura Monroy Lafuente
   Electronics Department, University of Alcalá, Spain

Novel techniques in the fields of medicine and chemistry have been possible thanks to the development of optical lasers. Among them, ultrafast passive lasers based on saturable absorbers have demonstrated to be the best option, leading to ultrashort pulses with high intensities and wide optical spectra. Hence, the search for new saturable absorbers with better characteristics is still a matter of interest. The Group of Photonics Engineering (GRIFO) from the Electronics Department of the University of Alcalá, are the pioneers in the application of nitrides of group III as saturable absorbers in ultrafast passive lasers. This kind of materials affords the performance of optical pulses centered at 1.5um and with a temporal duration in the range of 250fs. In order to improve these numbers, we developed new saturable absorbers with a reduced thickness of the InN layer in the material structure (400-900nm of InN growth on a 10um-thick-GaN-on-sapphire template) which enhances the nonlinear behavior of the material in a 800%, attaining higher fluences (5.2mJ/cm2) and shorter pulses (150fs). Subsequently, this laser was applied for gas monitoring, since its wavelength emission range covers absorption lines of important gasses for industry and greenhouse effect, like CO2.

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In-vessel non-contact optical metrology of magnetic confinement fusion plasma facing components for ITER


   Thomas Siegel
   ASE Optics Barcelona, Spain

Photonic technology is enabling critical diagnostic metrology measurements to be carried out in the most extreme environments. We present the development of a metrology probe based on both Frequency Modulated (FM) and Amplitude Modulated (AM) laser optical radar for the measurement of the damage and erosion inside the International Thermo- nuclear Experimental Reactor (ITER). The In-Vessel Viewing System (IVVS) is an instrument critical to the safe operation of the ITER reactor and to the understanding of the damage processes of the vacuum vessel by these extreme plasma conditions unique on earth. Design constraints include operation under ultra-high vacuum, magnetic fields suitable for magnetic confinement fusion and neutron and gamma ray fluxes orders of magnitude higher than space applications. The measurement system, based on photonic technology, has been tailored to the measurement environment and has been demonstrated to achieve single point accuracy as low as 6 microns over a distance of 10m. It is able to record and reconstruct clouds of points of plasma facing components recording both 3D profiles, for material erosion or deposition monitoring, and reflectivity, for identifying modifications in the surface properties of the plasma facing components throughout the 20-year lifetime of the first planned experimental phase.

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Laser in Glaucoma


   Dakki Sherpa
   Nepal Eye Hospital, Kathmandu, India

Glaucoma is currently the leading cause of irreversible blindness the world over.[1] Lasers have made the task of treating glaucoma simpler and these procedures are being used routinely by most ophthalmologists even at a very basic level. The most common procedure for angle closure is neodymium: yttrium-aluminum-garnet (Nd:YAG) laser peripheral iridotomy (LPI). The other procedures being used currently include laser trabeculoplasty (LTP), gonioplasty/iridoplasty, diode laser cyclophotocoagulation and endocyclophotocoagulation, laser suturolysis, bleb remodeling, iridolenticular synechiolysis and Nd:YAG laser hyaloidotomy. Without laser glaucoma management is incomplete

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Third Millennium Smart Energy Control via Future 5G Communication Cyberspace


   Eduard Babulak
   Department of Computer Science, Liberty University, USA

Given current dynamic research, innovation and technology development in the field of thermal energy systems and application, in conjunction with the ultrafast 5G communication technologies and ultra smart computational devices, the energy control and management is enabled via Internet and Smart Cyberspace 24/7. Apart from alternative sources of energy, the effective thermal energy production, distribution and management is essential in support of pollution free environment, sustainable transportation, industry, agriculture, healthy food production, and other critically important business worldwide. The proper provision of Cyber Security and Communication Information Infrastructure is essential for safe and reliable remote energy control via cyberspace. Author discusses current and future trends in research, innovation and technology development Future Smart Cyberspace and application of laser, optics and photonics, in support of the Third Millennium Smart Energy Control via Future 5G Ultra Fast Communication Cyberspace. Author promotes creation center of excellence in research, innovation and technology development of thermal energy systems and applications, as well as, creation of global multi-disciplinary research teams.

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Design splitter devices using slot-waveguide technology


   Dror Malka
   Holon Institute of Technology (HIT), Israel

The advance progress of the visible light communication field requires new and powerful components that enable high speed light transmission with low losses. Therefore, we propose a novel design for a 1×8 green light power splitter based on the multimode interference coupler in a gallium-nitride - silicon-oxide slot waveguide structure. Simulation results show that after a propagation length of 16.55 µm the energy of the green light signal is split into eight output beams with equal energy and low transmission losses of 0.11 dB. In addition, the splitter operates in the visible light spectrum from 460-670 nm. Therefore, this splitter can increase performance in network communication system that work in the visible light range. In addition, we design new and compact silicon on insulator 1 × 4 optical power splitter using multi-slot waveguide technology that operated under 1550 nm wavelength. Aluminum nitride surrounded by silicon was used to confine the optical field in the slot region. All of the power analysis has been done in transverse magnetic polarization mode and a compact optical power splitter as short as 14.5 m was demonstrated. The splitter was designed by using full vectorial beam propagation method simulations. Numerical investigations show that this device can work across the whole C-band (1530–1565 nm) with excess loss better than 0.23 dB.

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Latest Advance of Specialty Fiber Glass Processing Techniques and Applications


   Baishi Wang
   Thorlabs Vytran Division, Morganville, NJ, USA

Micro-Structured and Specialty Optical Fibres Specialty fibers including silica fibers, micro-structured fibers, and soft-glass fibers have been widely used for all-fiber components, systems, and lasers. Specialty fibers glass processing plays an important role in inter-connecting dissimilar fibers and fabricating all-fiber fused fiber components and fiber-based probes for both R&D and production uses. In this paper, we discuss latest advance of fiber glass processing techniques based on CO2 laser and filament fusion methods. We illustrate underlying fundamental fiber processing optics associated with each technique and present some practical examples. We describe different applications of these techniques in fiber laser, photonics lantern, and fiber sensing.

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Area-scalable optically induced 3D photorefractive photonic microstructures


   Yan Ling Xue
   East China Nomal University, China

We will update soon...

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Quantum properties of the bi-modal field and their application in holography and communication and microbiology.


   Nicolae Enaki
   Institute of Applied Physics of Moldova

In this chapter examines the coherence properties of two modes of entangled photons and its application quantum communication and holography. It is proposed novel two-photon entangled sources which take into account the coherence and collective phenomena between the photon belonging to two different modes obtained in twophoton cooperative emission or Raman or lasing. The generation of the correlated bimodal entangled field in two-photon emission or Raman Pump, Stokes and anti-Stokes modes is proposed in the free space and cavity induced emission. The application twophoton and Raman bimodal coherent field in communication and holography are given in accordance with the definition of amplitude and phase of such entangled states of light. Here it introduced the new field characteristics in the two-photon field consisted from the set of bi-modes in the coherent state Pˆ+(t) = Eˆ+(t)Eˆ+(t), which may be used as a guide field characteristic with good phase and amplitude in the semiclassical approximation hPˆ+(t)i = P0 exp[−iφ]. Here Eˆ+(t) is the strength of bimodal field and φ = 2iω0t+iKz is the phase of the square mean value of this field strength. Such field characteristic may be introduced in the two-photon in the cooperative conversion of the pump photons in Stokes one. In cavity induced conversion of the pump photons into the Stokes one we can introduce the same field characteristic consisted of the product of strengths for stokes and pump modes Πˆ +(t) = hEˆ− s (t)Eˆ+ p (t)i has the same properties as the coherent laser field hΠˆ +(t)i = Π0 exp[−iφ]. In this approximation,it seems exciting to use the modulation of this square amplitude for the transmission of information. At first, this method does not appear to be essentially different in comparison with the classical coherent state of information processing, but if we send this information in dispersive media, which separates the anti-Stokes and Stokes photons (or “idler” and “signal” in two-photon lasing) from coherent entanglement fields, the information is drastically destroyed, due to the quantum distribution of photons in the big number modes may be realized in the situation in which the mean value of hEs(t)i and hEp(t)i tend to zero. The possibility of restoration of the signal after the propagation of the bimodal field through different fibers we may restore the common square amplitudes P out 0 , Πout 0 , and phase φ out. This is an attractive problem of many coherent states of between the blocks of the particles generated in the bimodal field or in the process of Raman conversion of the photons. The new concept of phase and amplitude correlations are important not only in interferometry but also in the holographic registration of information and are related to the conceptual aspects of physics, chemistry and microbiology for the recording of three and multi-dimensional images in cosmology. According to thee invention of Dennis Gabor, the hologram is defined by the interference between two waves, the ”object wave” and the ”reference wave”. Like in laser experiments, this interference between the two waves requires to use the temporally and spatially consistent source, described by an intensity pattern, which represents the modulus squared of the sum of the two complex amplitudes. The reconstruction of the object field encoded within the hologram is based on the principle of light diffraction. This type of diffraction and interference can be keyed out by other coherent states, which can be an eigenstate of square parts of positive frequency strength of EMF. According to this description, the eigenvalue of vectors of square strength has the good amplitude and phase. For example, in the two photon cooperative emission by the pencil shape system of radiators (or by the cavity two-photon induced emission) the coherence is based between the photon pairs rather than between the individual photons. This effect is evident, when the pairs of photons are generated in the broadband spectral region of the EMF so, that the total energy of two photons in each pair is constant 2~ω0 = ~ωk1 + ~ωk2 = Const. Considering that the frequencies of the photons in the pairs are aleatory distributed, ωki 6= ωkj , we conclude that such systems generates the higher the second order coherence relative to first order one. In this context appear the problem of the application of such field in communication and holography, using its good amplitude and phase of squared strength, generated by the nominated sources. This chapter discusses the problem associated with the possibilities to divide the wave front of the photon-pairs into two wave fronts. Studying the interference between each part, ”object bimodal waves” Eˆ+(t + τ )Eˆ+(t + τ ) and ”reference bimodal waves” Eˆ+(t)Eˆ+(t), we may create the hologram image consisted of the interference and diffraction fringes between the bi-photons belonging to wave fronts of square vectors of field consisted from the ensemble of bi-modal field, hEˆ+(t + τ )Eˆ+(t + τ )Eˆ−(t)Eˆ−(t)i.

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Resonant Nano Pillars (RNPs) for advanced optical biochemical sensing


   Miguel Holgado
   Universidad Politécnica de Madrid, Spain

In recent works we reported the advantages of resonant nanopillars (R-NPs) arrays for biochemical sensing in comparison with other photonic alternatives, demonstrating the suitability of these transducers for several applications. The multiplexing capability based on vertical interrogation approach to readout the biochips simplifies the optical platforms for reading each of arrays of RNPs acting as a single photonic transducer. The multiplexing results showed a highly reproducibility to be used for advanced chemical sensors and biosensors. It is worthy to mention that in comparison with those systems based on labeled and chemical development or amplification such as ELISA or microarrays, this approach based on RNPs arrays on a chip permit an easy dropping of samples offering a high potential for industrial applications. Thus, the application of these technologies (photonic transducers based on RNPs arrays on a chip and vertical optical readers) are playing an important role in both: chemical sensing and biosensing.

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VCSEL Photonics for Interconnects and 3D Sensing


   Fumio Koyama
   Institute of Innovative Research, Tokyo Institute of Technology, Japan

The 40 years research and developments opened up a new world of VCSEL photonics, including, sensors, optical interconnects in data center networks, LiDAR and high power sources. A lot of unique features have been proven. The market of VCSELs has been growing up rapidly and they are now key devices in data center networks. High speed VCSELs are attracting much attention for rapid growth in network traffics. Also, 3D sensing has been attracting much attention for a wide range of applications such as face ID in mobile phones, LiDAR for automatic driving cars, distance sensor of robot, security camera, and motion sensors in virtual reality. In this talk, the advances on VCSEL photonics will be reviewed, in particular, our recent activities on new functions and integration of VCSEL photonics. We address a lateral integration platform and new functions, including high speed coupled cavity VCSELs, high power VCSEL amplifiers, high-resolution beam scanners, dot projector and their integrations.

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a visual, sensitive, and simple approach for quantitative detection of soluble Aβ


   Haiming Luo
   Huazhong University of Science and Technology (HUST), China

Alzheimer s disease (AD) is a progressive neurodegenerative illness defined as a series of symptoms associated with a decline in mental abilities, memory and reasoning being most pronounced. Although the pathogenesis of AD is still unclear, the drugs for effective treatment of AD are yet under development. Therefore, the development of simple and visual detection methods is extremely important for its early intervention. Herein, we developed an instrument-free and visual approach for early diagnosis of AD targeted on the soluble amyloid-β (sAβ) based on the dual epitope antibody probe and immuno-magnetic nanoparticles (DAIN) system. In this system, we realize the point-of-care and visual screen the sAβ in human serum and cerebrospinal fluid (CSF) with a sensitivity of 0.49 ng mL-1 in less than 50 min. Importantly, the DAIN system without specialized equipment or technical requirements provides a visual, sensitive, and simple approach for quantitative detection of sAβ, which may facilitate the diagnosis at early-stage AD, especially in areas with poor resources.

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The use of laser optics in the study of atherogenic human lipoproteins


   Antonio Martins Figueiredo Neto
   Universidade de São Paulo, Brazil

The Z-Scan optical technique was recently used to measure the non-linear optical response of human lipoproteins solutions, in particular Low-Density Lipoprotein (LDL) particles, regarding their oxidative (atherogenic) state. The higher is the oxidation degree of the LDL particle, the smaller is their non-linear optical response. The main physical process involved in this phenomenon is the formation of a thermal lens in the solution illuminated by a Gaussian laser beam. The main responsible for the absorption of the light (532 nm) are the carotenoids present in the particle. These molecules protect the LDL against oxidation. The higher the carotenoids concentration the greater the amplitude of the thermal lens formed. Different pathologies were investigated following this protocol: diabetic patients with periodontitis and gingivitis and infarcted patients subject to statins treatment. All these aspects will be discussed in the talk. The non-linear optical response of LDL solutions may be used in the development of new tools to quantify the atherogenic particles in the human blood and the definition of new risk factors to develop cardiovascular diseases. Financial support: CNPq, FAPESP, CAPES, INCT-FCx, NAP-FCx.

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Day - 2

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Interaction of reactive oxygen derivatives with nitric oxide in the model reaction of tryptophan photooxidation


  Olga Korotkova
  Federal Research Center of Chemical Physics N. N. Semenov Russian Academy of Sciences, Moscow

The interest in short-lived biologically active simple molecules, in particular nitrogen oxide and active forms of oxygen (ROS), is due to the fact that such compounds act as regulators at various levels of the organization of living organisms. Nitric oxide is a multifunctional signaling molecule that controls intracellular and intercellular processes in animals, bacterial and plant organisms and has both a promoting (regulatory, protective) and inhibitory effect on metabolism. In particular, the radical form of NO. plays a crucial role in the functioning of the immune, nervous, vascular systems in animals, in the growth and development of plants. ROS are a necessary component of the vital activity of the cells and the organism as a whole, and in fact constitute a separate system in the organism, participating both in a number of physiological functions and in many pathological processes. The most important ROS are superoxide radical, singlet oxygen 1O2, hydroxyl and peroxide radicals, hydrogen peroxide, peroxide ion, hypochlorite HOCl. ROS are actively involved in the intracellular signaling process that is important for normal cell growth. The interaction of nitric oxide and its derivatives with active forms of oxygen leads to the formation of reactive metabolites of nitric oxide - peroxynitrite, nitrogen dioxide, NO2Cl, which are important components of the immune response in humans and animals. Among these types of processes, it is possible to note the interaction of reactive oxygen species with dinitrosyl complexes of iron (DNIC) with thiol-containing ligands, since such complexes are able to act as donors of NO and NO+ in biosystems and determine not only cytotoxic, but also regulatory and regenerative processes in living organisms [1]. Despite the importance of such processes for the organism, the mechanisms of interaction of reactive oxygen species with nitrogen oxide and some of its derivatives, including DNIC, was not studied accurately. In particular, the quenching of singlet oxygen by its interaction with nitroso-propane methyl and tri-methyl nitroso-methane in a mixture of methylene chloride and ethanol, as well as with S-nitroso-glutathione, was described. However, there are a lot of open issues related to the mechanism of decomposition of DNIC and the ability of controlled and foreign impacts on the biological activity of DNIC with thiol-containing ligands. The processes of photostimulated and photosensitizing effects on the decomposition of DNIC and the generation of NO radicals also draw attention to themselves [2]. The photogeneration of ROS is the basis of oxidative destruction of pathological cells and tissues (malignant neoplasms as well as infected wounds, burns, trophic ulcers) when a photosensitizer is injected into the affected area (photodynamic therapy, PDT). Thus, it is possible to search for a combination of PDT and the effect of DNIC, a combination of relatively “soft”, photodynamic effects that destroy pathological tissues, with simultaneous photoinitiation of regulatory-regenerative processes of decomposition of DNIC with thiol-containing ligands and the appearance of NO radicals in the reaction medium. This work discusses some aspects of the problem of the interaction of the ROS with derivatives of nitric oxide, which analyzes the possibility of simultaneous use of action of singlet oxygen produced upon photoexcitation of porphyrin photosensitizers (PPS) with dinitrosyl complexes of iron and nitroso-glutathione. Hopes for the implementation of the idea of the simultaneous use of PDT and DNIC are associated with the previously discovered “polymer effect” - an increase in the presence of amphiphilic polymers (AP) of specific photosensitizing activity (related to the PPS molecule) in tryptophan oxidation processes, which is achieved through solubilization, a kind of “encapsulation” of PPS molecules [3]. The last factor may play a decisive role in the manifestation of the activity of DNIC – producing radicals NO. It was found that AP, including ternary block copolymers of ethylene and propylene oxides, pluronics, in the aqueous medium form weakly bound complexes with porphyrin photosensitizers (PPS). In this work the influence of DNIC with thiol-containing ligands and dimethylglucamine salt of chlorin e6 (photoditazine, PD) on the rate of photosensitized oxidation of organic substrate, tryptophan, (test reaction for evaluation of the photosensitizers efficiency) and photostability DNIC and PD was studied. Also, the DNIC-PD system was investigated in the presence of the amphiphilic polymer-Pluronic F-127. It is shown that taking into account the changing concentrations of DNIC and PD in the conditions of photoexcitation , the presence of photosensitizer and pluronic F-127 don`t affect the rate of photodestruction of mono-and bi-nuclear forms of DNIC. At the same time, in the presence of DNIC, the rate of photodegradation of PD is increased, but the introduction of Pluronic F-127 into the system the rate constant of photodegradation of PD is decreased. It is the latter fact that opens up the possibility of simultaneous use in the treatment of wounds of photodynamic therapy and DNIC without losing the effectiveness of PDT. Really, it was shown in experiments on PD-treatment of model wounds in rats, the use of DNIC-PD-pluronic-F127, led to a weakening of inflammatory changes in the wound (edema, exudation, neutrophil infiltration, etc.). The use of “F127 + DNIC + PD” was resulting in the increase of such indicators as proliferation of fibroblasts, the growth and maturation of granulation tissue, angiogenesis which reflect the activity of wound healing.

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Application of laser in medicine (treatment and diagnosis)


  Ehsan Kamani
  Shohada University, Iran

In the name of Creator of Light Laser is a technology used in various medical fields. After the revolution, Penny Celine has been in the medicine of this laser, which has revolutionized medicine I have studied and studied laser applications in medical sciences, and I have been able to get the right information in this area. 1. Application of laser in drug delivery of cancer tissue: Using a laser and a method for making drugs with nanoparticles, we can use the laser wavelength and appropriate selection of drugs and nanoparticles to target tissues that are used in drug delivery. People with cancer have an important role in minimizing the side effects of chemotherapy 2. Application of Lasers to Improve Endocrine Activity: By using appropriate wavelength lasers and energy, we can influence the process of recovery of the activity of the glands, which is used to improve the thyroid gland, pancreas and saliva. 3. Application of laser in lowering blood pressure: Using low-level lasers can be treated intraarticular and topically in the process of reducing blood pressure. 4. Laser application in blood cell proliferation: We can play an important role in laboratory culture using laser light and proper wavelength in the process of white blood cell proliferation, red blood cells, and platelets. This process is important in patients with over-the-counter It will play an important role. 5. Laser application in the treatment of depression: This method will be performed using appropriate light and energy 6-Application of Lasers in Acupuncture: Using a low-power laser and appropriate acupuncture points, we can treat the following illnesses. 1 - Obesity 2 - Depression 3 - Impotence - Muscle pain 5 - Paralysis 7. Application of laser in preventing ulcers in chemotherapy patients 8. Application of laser in wound healing of diabetic people 9-Laser application in the treatment of fungus nails with specific color and appropriate laser length 10. Making laser machine for diagnosis as soon as possible All of these projects will be an important contribution to the recovery of patients and will promote the development of laser medical science. I now need research opportunities and scholarships.

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Day - 3

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Poster

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Video Presentation

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