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ТЕХНОСФЕРА_РИЦ
Expert Opinion
V.Minaev
The question of laser safety standards Discussion about the confusion in the requirements of the existing regulatory framework for laser safety
The question of laser safety standards Discussion about the confusion in the requirements of the existing regulatory framework for laser safety
Portrait of The Company
Technologies and Technology Equipment
Todd D. Jaeger
Optical Manufacturing Material improvements bring laser glasses into mainstream applications
Although rare-earth-doped glass has long been used for fundamental research at large national labs, advances in material properties are propelling its use in mainstream medical devices, astronomy and measurement, and materials processing applications.
Optical Manufacturing Material improvements bring laser glasses into mainstream applications
Although rare-earth-doped glass has long been used for fundamental research at large national labs, advances in material properties are propelling its use in mainstream medical devices, astronomy and measurement, and materials processing applications.
E. Zakharevich, V. Gorokhov, V.Lapshin, M.Shavva
Experimental Definition Of The Boundaries Of Brittle-Ductile Transition When Cutting THE BRITTLE MATERIALS
Treatment of brittle optical materials is the main task of modern industry. In order to enhance the efficiency of brittle material treatment it is necessary to reduce the share of cutting time, which is spent on rough and semifinish operations, and increase the quality of the surfaces obtained after polishing, chemical and mechanical treatment.
Experimental Definition Of The Boundaries Of Brittle-Ductile Transition When Cutting THE BRITTLE MATERIALS
Treatment of brittle optical materials is the main task of modern industry. In order to enhance the efficiency of brittle material treatment it is necessary to reduce the share of cutting time, which is spent on rough and semifinish operations, and increase the quality of the surfaces obtained after polishing, chemical and mechanical treatment.
Tags: the quality of the surfaces obtained after polishing treatment of brittle optical materials качества обрабатываемой поверхности. обработка хрупких оптических материалов
Additive Technologies
A.Saprykin, N.Saprykina, E.Ibragimov, E.Babakova, Yu.Sharkeev
Influence Of Conditions Of Layerwise Laser Sintering (Melting) On The Quality Of Product Surface The influence of argon protective atmosphere, prior mechanical activation and operating conditions of laser sintering (speed of laser beam travel V, laser power P, scanning pitch S and preheating temperature of powder material t) on the quality of sintered surface layer obtained from the copper powder, cobalt-chromium-molybdenum powder and composite powder titanium+niobium is studied.
Influence Of Conditions Of Layerwise Laser Sintering (Melting) On The Quality Of Product Surface The influence of argon protective atmosphere, prior mechanical activation and operating conditions of laser sintering (speed of laser beam travel V, laser power P, scanning pitch S and preheating temperature of powder material t) on the quality of sintered surface layer obtained from the copper powder, cobalt-chromium-molybdenum powder and composite powder titanium+niobium is studied.
R.Faskhutdinov, S.Chervonnykh, N.Trufanov
Additive Manufacturing in Aero Engine Production Additive technologies make it possible to create technical objects of lightweight design with unique physical and mechanical properties. But the non-linear nature of the deformation and destruction lead to the need to create hierarchically organized materials. This article presents the results of mesoscale modeling and multi-level process of selective laser melting (SLM) of productsproducts, having resistance to cyclic stress.
Additive Manufacturing in Aero Engine Production Additive technologies make it possible to create technical objects of lightweight design with unique physical and mechanical properties. But the non-linear nature of the deformation and destruction lead to the need to create hierarchically organized materials. This article presents the results of mesoscale modeling and multi-level process of selective laser melting (SLM) of productsproducts, having resistance to cyclic stress.
Tags: additive technologies hierarchically organized materials selective laser melting аддитивные технологии иерархически организованные материалы селективное лазерное сплавление
Lasers & Laser Systems
M.Bogdanovich, A.Grigor’ev, K.Lantsov, K.Lepchenkov, A.Ryabtsev, G.Ryabtsev, U.Tsitavets, M.Shchemelev
Portable Diode-Pumped Solid-State Lasers Compact and light laser devices emitting in the spectral range of 1.5–1.6 µm and characterized by very low power/energy consumption are indispensible for small-size range finders, target illumination and tracking systems, portable medical apparatus.
Portable Diode-Pumped Solid-State Lasers Compact and light laser devices emitting in the spectral range of 1.5–1.6 µm and characterized by very low power/energy consumption are indispensible for small-size range finders, target illumination and tracking systems, portable medical apparatus.
A.R.Gayoso de los Santos, Z.Pavlova, A.Temnikov, A.Fedorov
Range of OEM Drivers for Laser Diode Power Supply Russian laser market is very different from the international market. The positions of lasers for scientific research and arms are much more serious. The experience of the laser product exit to the international market is described.
Range of OEM Drivers for Laser Diode Power Supply Russian laser market is very different from the international market. The positions of lasers for scientific research and arms are much more serious. The experience of the laser product exit to the international market is described.
D.Vasiliev, M.Konyaev, A.Kim, L.Abramov
Application of the Methods of Laser Diode Spectroscopy for Practical Implementation of Contactless Measurement System of Concentration of Ethyl Alcohol Vapors in Human Breath Tunable Diode Laser Absorption Spectroscopy (TDLAS) refers to one of the methods of detection of chemical substances in the atmospheric composition. Such method is universal for wide range of substances and allows detecting the gases at very low concentration. The method is based on the substance property to absorb radiation at the typical wavelengths.
Application of the Methods of Laser Diode Spectroscopy for Practical Implementation of Contactless Measurement System of Concentration of Ethyl Alcohol Vapors in Human Breath Tunable Diode Laser Absorption Spectroscopy (TDLAS) refers to one of the methods of detection of chemical substances in the atmospheric composition. Such method is universal for wide range of substances and allows detecting the gases at very low concentration. The method is based on the substance property to absorb radiation at the typical wavelengths.
Tags: tunable diode laser absorption spectroscopy лазерная диодная спектроскопия на основе диодных перестраиваемых
Optical Devices & Systems
E.Razueva
The Light Maintaining Its Shape The light fields with spiral phase fronts or phase singularities compose the subject matter of singular optics. At the present time, the vortex light fields are used for contactless manipulation of microscopic objects in biology and electronics due to the presence of phase singularities and variety of the forms of intensity distribution.
The Light Maintaining Its Shape The light fields with spiral phase fronts or phase singularities compose the subject matter of singular optics. At the present time, the vortex light fields are used for contactless manipulation of microscopic objects in biology and electronics due to the presence of phase singularities and variety of the forms of intensity distribution.
Tags: contactless manipulation of microscopic objects in biology and e the light fields with spiral phase fronts бесконтактное манипулирование микрообъектами в биологии и электр световые поля со спиральными фазовыми фронтами
V.Venediktov
Wavefront Hologram Detectors Nowadays, we meet holography and holographic methods practically every day. Our bank cards and identity cards are protected with holograms. So-called holographic optical elements (HOE) are less known but they are not less significant. HOEs are commonly used instead of lenses and mirrors.
Wavefront Hologram Detectors Nowadays, we meet holography and holographic methods practically every day. Our bank cards and identity cards are protected with holograms. So-called holographic optical elements (HOE) are less known but they are not less significant. HOEs are commonly used instead of lenses and mirrors.
Fiber-Optic Technoligies
A.Andryieuski
In- And Out-Coupling Devices For Subwavelength Waveguides. Part 1 Interest to the in- and out-coupling devices for optical radiation increases together with miniaturization of optical waveguides. In this article we consider physical principles of operation of various in- and out-coupling devices, known for a long time, as well as discovered in the recent years.
In- And Out-Coupling Devices For Subwavelength Waveguides. Part 1 Interest to the in- and out-coupling devices for optical radiation increases together with miniaturization of optical waveguides. In this article we consider physical principles of operation of various in- and out-coupling devices, known for a long time, as well as discovered in the recent years.
Tags: in- and out-coupling devices for subwavelength waveguides устройства ввода-вывода оптического излучения для субволновых во
R.Dionne, M.Morin
Pulse Stretching Using High Accuracy Chirped Fiber Bragg Grating Advanced material processing requires industrial ultrafast lasers to generate pedestal-free picosecond or even femtosecond pulses with high energy and average power, while being environmentally stable and at low cost. A good way to achieve this and minimize cost is to use a Chirped Fiber Bragg Grating (CFBG) as a pulse stretcher, but it is critical to use the right one.
Pulse Stretching Using High Accuracy Chirped Fiber Bragg Grating Advanced material processing requires industrial ultrafast lasers to generate pedestal-free picosecond or even femtosecond pulses with high energy and average power, while being environmentally stable and at low cost. A good way to achieve this and minimize cost is to use a Chirped Fiber Bragg Grating (CFBG) as a pulse stretcher, but it is critical to use the right one.
Tags: chirped fiber bragg grating pulse stretching дифракционные волоконные брэгговские решетки расширитель лазерных импульсов
Optoelectronic devices
S.Odinokov, I.Tsyganov, V.Talalaev, N.Piryutin, V.Kolyuchkin, E.Zlokazov
Scanner for Automatic Control of Security Holograms Authenticity on Passport Documents The optoelectronic scanner for operational control of authenticity of security holograms on passport documents, which allows determining one of the main characteristic features of security holograms and identifying the security hologram in automatic mode with high level of probability within minimum period of time, is considered.
Scanner for Automatic Control of Security Holograms Authenticity on Passport Documents The optoelectronic scanner for operational control of authenticity of security holograms on passport documents, which allows determining one of the main characteristic features of security holograms and identifying the security hologram in automatic mode with high level of probability within minimum period of time, is considered.
S. Catalanotti, A.Cocco, G.Covone, M.D’Incecco, G.Fiorillo, G.Korga, B.Rossi, S.Walker
Performance of a SensL-30035-16P Silicon Photomultiplier array at liquid argon temperature Next generation multi-ton scale noble liquid experiments have the unique opportunity to discover dark matter particles at the TeV scale, reaching the sensitivity of 10—48 cm2 in the WIMP nucleon scattering cross-section.
Performance of a SensL-30035-16P Silicon Photomultiplier array at liquid argon temperature Next generation multi-ton scale noble liquid experiments have the unique opportunity to discover dark matter particles at the TeV scale, reaching the sensitivity of 10—48 cm2 in the WIMP nucleon scattering cross-section.