Zobrazeno 1 - 10
of 103
pro vyhledávání: '"Arkadiy Lyakh"'
Publikováno v:
AIP Advances, Vol 11, Iss 11, Pp 115221-115221-5 (2021)
Demonstration of substrate-emitting quantum cascade lasers (QCLs) with a distributed Bragg reflector (DBR) used for wavelength selection and a second-order outcoupler spectrally detuned from the reflector is reported. A 40-stage QCL structure with th
Externí odkaz:
https://doaj.org/article/8fd08d2cffc34892b726bc2e46e050c2
Publikováno v:
Micromachines, Vol 13, Iss 11, p 1934 (2022)
The low cross-plane thermal conductivity of quantum cascade lasers (QCLs) is a significant limitation in their Continuous-Wave (CW) performance. Structural parameters such as individual layer thicknesses and interface density vary for QCLs with diffe
Externí odkaz:
https://doaj.org/article/546e59ae305147eb85053bdca8d04c5a
Autor:
Dagan Hathaway, Monas Shahzad, Tamil S. Sakthivel, Matthew Suttinger, Rowel Go, Enrique Sanchez, Sudipta Seal, Hong Shu, Arkadiy Lyakh
Publikováno v:
AIP Advances, Vol 10, Iss 8, Pp 085104-085104-4 (2020)
Output facet temperatures of an uncoated high power continuous-wave quantum cascade laser (QCL) emitting at 8.5 μm were measured by using micro-Raman thermometry. The rate of the measured temperature changes with the injected electrical power increa
Externí odkaz:
https://doaj.org/article/6088d49023e148b1914bcac07792749c
Autor:
Enrique Cristobal, Matthew Fetters, Amy W. K. Liu, Joel M. Fastenau, Ahmad Azim, Luke Milbocker, Arkadiy Lyakh
Publikováno v:
Applied Physics Letters. 122:141108
High peak power, room-temperature operation in the long wave infrared spectral region is reported for double-channel, ridge waveguide quantum cascade lasers (QCLs) monolithically integrated onto a silicon substrate. The 55-stage laser structure with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d43a56fd7297df0c6a0b861030f4824
https://doi.org/10.1063/5.0149072
https://doi.org/10.1063/5.0149072
Publikováno v:
AIAA SCITECH 2022 Forum.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb08667bcf85c180621ec371b7d7414d
https://doi.org/10.2514/6.2022-0426
https://doi.org/10.2514/6.2022-0426
Publikováno v:
Technologies for Optical Countermeasures XVIII and High-Power Lasers: Technology and Systems, Platforms, Effects V.
Multi-watt continuous wave operation has been demonstrated for broad-area, Fabry-Perot Quantum Cascade Lasers (QCLs). In addition to high optical power, increase in operational range for infrared countermeasures requires low atmospheric propagation l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60d50222d8d9da3f45703d25f802eb81
https://doi.org/10.1117/12.2601868
https://doi.org/10.1117/12.2601868
Publikováno v:
IEEE Journal of Quantum Electronics. 55:1-7
A detailed description of a numerical model based on the Floquet-Bloch approach for designing distributed feedback quantum cascade lasers with a non-rectangular top-metal grating profile is presented. The numerical methods resulting in efficient nume
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::640e482277c68388e7327a4dff6205b7
https://doi.org/10.1109/jqe.2019.2891824
https://doi.org/10.1109/jqe.2019.2891824
Progress in Rapidly-Tunable External Cavity Quantum Cascade Lasers with a Frequency-Shifted Feedback
Autor:
Arkadiy Lyakh, Rodolfo Barron-Jimenez, Ilya Dunayevskiy, Rowel Go, Eugene Tsvid, C. Kumar N. Patel
Publikováno v:
Photonics, Vol 3, Iss 2, p 19 (2016)
The recent demonstration of external cavity quantum cascade lasers with optical feedback, controlled by an acousto-optic modulator, paves the way to ruggedized infrared laser systems with the capability of tuning the emission wavelength on a microsec
Externí odkaz:
https://doaj.org/article/c2d7875bc9a94b85a11c59e951395084
Autor:
Monas Shahzad, Arkadiy Lyakh, Matthew Suttinger, Dagan Hathaway, Luke Milbocker, Rowel Go, Jonathan R. Brescia, Enrique Sanchez
Publikováno v:
Optical Engineering. 59
Quasicontinuous wave operation of midinfrared quantum cascade lasers are shown to have increased average output power with good beam quality. The ability to enhance average power by a significant fraction of CW power motivates the development of a mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf9939c992e71af8bd8cbfdd726af269
https://doi.org/10.1117/1.oe.59.10.106111
https://doi.org/10.1117/1.oe.59.10.106111
Publikováno v:
23rd AIAA International Space Planes and Hypersonic Systems and Technologies Conference.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fad304fb18b6c701938a0e23321369c9
https://doi.org/10.2514/6.2020-2453
https://doi.org/10.2514/6.2020-2453