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Information × Registration Number 0218U001237, 0116U007565 , R & D reports Title Functional nanostructured semiconductor glass-ceramics for TELECOM use modified by femtosecond laser irradiation. popup.stage_title Head Blonskyi Ivan Vasylyovych, Registration Date 26-01-2018 Organization Institute of physics NASU popup.description2 Objective: The purpose of the project is: to create new high-performance functional elements of optoelectronics based on chalcogenide and chalcohalide semiconductor glasses with special nanostructured inhomogeneities by surface- and volume nano- and microstructuring under the influence of femtosecond laser irradiation and doping. Studying the nature and properties of such nanostructured materials, and as well as new opportunities for their use. Research Methods: The measurement of spectral and spatial, luminescent, polarization and temporal properties of femtosecond laser pulses in filamented mode. The main result of the project is the creation of the reproducible technology of externally induced optimization of chalcogenide and chalcohalide glassy semiconductors with femtosecond laser pulses. The modern technology of modification of special glass materials of infrared optoelectronics and photonics is developed. In particular, an experimental installation was created in order to work out the method of externally induced optimization of pure and Ga-containing chalcohalide and chalcogenide glasses with femtosecond laser pulses. The technique of spectral measurements for the determination of the influence of laser-induced optimization of Ga-containing systems of chalcohalide glasses on their luminescence properties was determined and the features of fluorescence of 65GeS2-25Ga2S3-10CsCl glass doped by Er under the excitation with femtosecond laser pulses with a wavelength of 800 nm were revealed. The manifestations of the spatial-temporal dynamics of femtosecond laser pulse during its propagation in the As2S3 chalcogenide glass: the nonlinear widening of the spectrum of the femtosecond laser pulse and the generation of radiation of the third harmonic are found. Flat-concave microlenses and arrays of microlenses on the surface of the chalcohalide glass of 65GeS2-25Ga2S3-10CsCl composition were created by the method of femtosecond laser ablation. The methods of time-resolved polarization microscopy and absorption microscopy have been used to study the physics of the processes taking place in this process, in particular, the stages of femtosecond laser ablation and femtosecond filamentation. Microlens- and micro-mirror arrays were fabricated by coating micro-lenses in chalcohalide glass with a 20-nanometer thick layer of gold. Scope: modification of the properties of optoelectronics materials. Product Description popup.authors Блонський Іван Васильович Головченко Олена Миколаївна Дмитрук Андрій Миколайович Кадан Віктор Миколайович Коренюк Петро Іванович Томашук Анатолій Євгенович popup.nrat_date 2020-04-02 Close