Search Results - "Losev, S. N."

Spectral Dynamics of Quantum Cascade Lasers Generating Frequency Combs in the Long-Wavelength Infrared Range by Dudelev, V. V., Mikhailov, D. A., Babichev, A. V., Losev, S. N., Kognovitskaya, E. A., Lyutetskii, A. V., Slipchenko, S. O., Pikhtin, N. A., Gladyshev, A. G., Denisov, D. V., Novikov, I. I., Karachinsky, L. Ya, Kuchinskii, V. I., Egorov, A. Yu, Sokolovskii, G. S.

“…We have studied the spectral and dynamic characteristics of quantum cascade lasers emitting in the long-wavelength infrared range. It is shown that lasers with…”
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Conical refraction with low-coherence light sources by Mylnikov, V Yu, Losev, S N, Dudelev, V V, Fedorova, K A, Rafailov, E U, Sokolovskii, G S

“…We report on conical refraction (CR) with low-coherence light sources, such as light-emitting diodes and decoherentized HeNe laser radiation, and demonstrate…”
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Observation of Long Turn-On Delay in Pulsed Quantum Cascade Lasers by Cherotchenko, E. D., Dudelev, V. V., Mikhailov, D. A., Losev, S. N., Babichev, A. V., Gladyshev, A. G., Novikov, I. I., Lutetskiy, A. V., Veselov, D. A., Slipchenko, S. O., Pikhtin, N. A., Karachinsky, L. Ya, Denisov, D. V., Kuchinskii, V. I., Kognovitskaya, E. A., Egorov, A. Yu, Teissier, R., Baranov, A. N., Sokolovskii, G. S.

“…We present an experimental study of the turn-on delay in pulsed mid-infrared quantum cascade lasers. We report the unexpectedly long delay time depending on…”
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Period of Droplet Quasi-Bessel Beam Generated with the Round-Tip Axicon by Mylnikov, V. Yu, Chistyakov, D. V., Abdulrazak, S. H., Deryagin, N. G., Zadiranov, Yu. M., Losev, S. N., Dudelev, V. V., Sokolovskii, G. S.

“…We demonstrate the experimental study of the axial intensity distribution of a quasi-Bessel beam with a droplet structure of the central core, formed by an…”
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Dual-Frequency Generation in Quantum Cascade Lasers of the 8-μm Spectral Range by Dudelev, V. V., Losev, S. N., Mylnikov, V. Yu, Babichev, A. V., Kognovitskaya, E. A., Slipchenko, S. O., Lutetskii, A. V., Pikhtin, N. A., Gladyshev, A. G., Karachinskii, L. Ya, Novikov, I. I., Egorov, A. Yu, Kuchinskii, V. I., Sokolovskii, G. S.

“…Results of an investigation of quantum cascade lasers of the 8-μm spectral range generating dual-frequency radiation at room temperature are presented. The…”
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Generation of Droplet Quasi-Bessel Beams Using a Semiconductor Laser by Chistyakov, D. V., Losev, S. N., Abdulrazak, S. H., Myl’nikov, V. Yu, Kognovitskaya, E. A., Zadiranov, Yu. M., Deryagin, N. G., Dudelev, V. V., Kuchinskii, V. I., Sokolovskii, G. S.

“…A method for generation of droplet quasi-Bessel beams using a conical lens with a rounded tip is demonstrated. The study of the longitudinal distribution of…”
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Turn-on Dynamics of Quantum Cascade Lasers with a Wavelength of 8100 nm at Room Temperature by Dudelev, V. V., Losev, S. N., Myl’nikov, V. Yu, Babichev, A. V., Kognovitskaya, E. A., Slipchenko, S. O., Lyutetskii, A. V., Pikhtin, N. A., Gladyshev, A. G., Karachinsky, L. Ya, Novikov, I. I., Egorov, A. Yu, Kuchinskii, V. I., Sokolovskii, G. S.

“…Lasing of quantum cascade lasers is demonstrated at a radiation wavelength of 8100 nm at room temperature. Analysis of oscillograms of optical pulses is used…”
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A Material for Difference-Frequency Generation of Terahertz Radiation by Savchenko, G. M., Dudelev, V. V., Kognovitskaya, E. A., Losev, S. N., Deryagin, A. G., Kuchinskii, V. I., Averkiev, N. S., Sokolovskii, G. S.

“…The possibility of efficient difference-frequency generation of terahertz radiation in a metamaterial representing a structure consisting of alternating layers…”
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High Temperature Laser Generation of Quantum-Cascade Lasers in the Spectral Region of 8 μm by Dudelev, V. V., Losev, S. N., Mylnikov, V. Yu, Babichev, A. V., Kognovitskaya, E. A., Slipchenko, S. O., Lyutetskiy, A.V., Pikhtin, N. A., Gladyshev, A. G., Karachinsky, L. Ya, Novikov, I. I., Egorov, A. Yu, Kuchinskii, V. I., Sokolovskii, G. S.

“…—In this paper, we present studies of the characteristics of quantum-cascade lasers with a generation wavelength in the region of 8 μm at high temperatures of…”
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Generation of Frequency Combs by Quantum Cascade Lasers Emitting in the 8-μm Wavelength Range by Dudelev, V. V., Mikhailov, D. A., Babichev, A. V., Losev, S. N., Chistyakov, D. V., Kognovitskaya, E. A., Avrov, D. D., Slipchenko, S. O., Lyutetskii, A. V., Pikhtin, N. A., Gladyshev, A. G., Karachinsky, L. Ya, Novikov, I. I., Kuchinskii, V. I., Egorov, A. Yu, Sokolovskii, G. S.

“…We have studied the generation of frequency combs by quantum cascade lasers (QCLs) emitting in the 8-μm wavelength range. Results showed the presence of a…”
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Generation of Droplet Bessel Beams Using a Semiconductor Laser by Losev, S. N., Abdulrazak, S. Kh, Chistyakov, D. V., Myl’nikov, V. Yu, Kognovitskaya, E. A., Berkutov, I. V., Zadiranov, Yu. M., Deryagin, N. G., Dudelev, V. V., Kuchinskii, V. I., Sokolovskii, G. S.

“…In this paper, we studied Bessel beams obtained using an axicon with a substantially rounded apex. A study of the interference of two wave fronts arising from…”
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Photonic-crystal waveguide for the second-harmonic generation by Savchenko, G. M., Dudelev, V. V., Lundin, V. V., Sakharov, A. V., Tsatsul’nikov, A. F., Kognovitskaya, E. A., Losev, S. N., Deryagin, A. G., Kuchinskii, V. I., Averkiev, N. S., Sokolovskii, G. S.

“…The possibility of efficient second-harmonic generation in the optical range in a planar dielectric waveguide with the active region in the form of a…”
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Generation of High-Power Ultrashort Optical Pulses Using a Semiconductor Laser with Controlled Current Pumping by Kolykhalova, E. D., Dyudelev, V. V., Zazulin, S. V., Losev, S. N., Deryagin, A. G., Kuchinskii, V. I., Efanov, M. V., Sokolovskii, G. S.

“…Fiber-coupled semiconductor lasers are studied under pumping with high-power short current pulses. Appropriate parameters of the current pumping make it…”
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Metamaterial for efficient second harmonic generation by Savchenko, G. M., Dudelev, V. V., Soboleva, K. K., Lundin, V. V., Sakharov, A. V., Kognovitskaya, E. A., Losev, S. N., Deryagin, A. G., Kuchinskii, V. I., Averkiev, N. S., Sokolovskii, G. S.

“…A theoretical study is carried out of the possibility of effective second-harmonic generation in a metamaterial representing a structure of alternating layers…”
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Generation of high-power ultrashort optical pulses by semiconductor lasers by Dudelev, V. V., Zazulin, S. V., Kolykhalova, E. D., Losev, S. N., Deryagin, A. G., Kuchinskii, V. I., Efanov, M. V., Sokolovskii, G. S.

“…Fiber-coupled semiconductor lasers have been studied when pumped by high-power short electrical pulses of 5 ns width and leading front duration below 1 ns. In…”
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Bessel beam generation from conically refracted laser diode radiation by Abdulrazak, S. H., Mylnikov, V. Yu, Chistyakov, D. V., Losev, S. N., Deryagin, N. G., Dudelev, V. V., Sokolovskii, G. S.

“…We demonstrate generation of Bessel beam from conically refracted laser diode radiation. Conical refraction provides annular distribution of the beam at the…”
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Climate Oscillations in the Arctic Region in the Holocene and Solar Activity by Dergachev, V. A., Losev, S. N.

“…A global problem facing humanity today is the changing planetary climate. The Earth’s northern regions play an important role in processes that affect the…”
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The Technique for QCLs Heating Dynamics Mesurements by Dudelev, V. V., Mikhailov, D. A., Babichev, A. V., Mylnikov, V. Yu, Gladyshev, A. G., Losev, S. N., Novikov, I. I., Lyutetskiy, A. V., Slipchenko, S. O., Pikhtin, N. A., Karachinsky, L. Ya, Egorov, A. Yu, Sokolovskii, G. S.

“…The study presents a technique for measurement of heating dynamics of quantum-cascade laser active region at short pulsed pumping…”
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Dynamics of Frequency Combs Generation by QCLs in 8 μm Wavelength Range by Dudelev, V. V., Mikhailov, D. A., Babichev, A. V., Gladyshev, A. G., Losev, S. N., Novikov, I. I., Lyutetskiy, A. V., Slipchenko, S. O., Pikhtin, N. A., Karachinsky, L.Ya, Egorov, A. Yu, Sokolovskii, G. S.

“…Frequency comb generation by quantum-cascade lasers generating at 8 μm is demonstrated. Time resolved spectral measurements show generation of all modes of…”
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Cancellation of side lobes in "droplet" Bessel beams generated with semiconductor laser by Abdulrazak, S. H., Chistyakov, D. V., Losev, S. N., Myl'nikov, V. Yu, Zadiranov, Yu. M., Deryagin, N. G., Dudelev, V. V., Kuchinskii, V. I., Sokolovskii, G. S.

“…We demonstrate generation of "droplet" Bessel beams using semiconductor laser and an axicon with rounded tip. Interference of Bessel and Gaussian wave fronts…”
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