Zobrazeno 1 - 10
of 261
pro vyhledávání: '"D.A. Livshits"'
Autor:
Vladislav V. Dudelev, A. S. Shkol'nik, E. D. Cherotchenko, Grigorii S. Sokolovskii, D.A. Livshits
Publikováno v:
2020 International Conference Laser Optics (ICLO).
We study gain switching of the broad-stripe InAs/GaAs quantum dot lasers and show that the ratio of ground and excited states emission varies with the lateral position at the laser facet.
Autor:
Eduard Moiseev, D.A. Livshits, A. E. Zhukov, M. M. Kulagina, F. I. Zubov, N. V. Kryzhanovskaya, M. S. Mikhailovskii, Mikhail V. Maximov, Yu. A. Guseva, A. N. Abramov
Publikováno v:
Semiconductors. 53:1888-1890
We demonstrate a record low threshold current density of 250 A/cm2 in a quantum dot microdisk laser with a 31-μm diameter operating at room temperature in continuous wave regime without temperature stabilization. This low threshold current density i
Autor:
Mikhail V. Maximov, A. E. Zhukov, Yu. M. Zadiranov, Andrey A. Lipovskii, V. M. Ustinov, Yu. V. Kudashova, D.A. Livshits, Eduard Moiseev, M. M. Kulagina, S. A. Blokhin, M. A. Bobrov, N. V. Kryzhanovskaya, S. I. Troshkov
Publikováno v:
Semiconductors. 50:390-393
Microdisk injection lasers on GaAs substrates, with a minimum diameter of 15 μm and an active region based on InAs/InGaAs quantum dots, are fabricated. The lasers operate in the continuous-wave mode at room temperature without external cooling. The
Autor:
Grigorii S. Sokolovskii, Vladislav V. Dudelev, V. Yu. Mylnikov, A.S. Shkolanik, K.K. Soboleva, V. I. Kuchinskii, D.A. Livshits, Evgeny A. Viktorov
Publikováno v:
2018 International Conference Laser Optics (ICLO).
We analyze, experimentally and theoretically, the pulsed generation in quantum well laser simultaneously operating from the ground (GS) and the excited (ES) states. We find that an exponential increase in the output power at the GS laser turn-on noti
Autor:
N. V. Kryzhanovskaya, D.A. Livshits, A. V. Savelyev, Eduard Moiseev, Y.M. Shernyakov, Alexey E. Zhukov, F. I. Zubov, Mikhail V. Maximov
Publikováno v:
Electronics Letters. 51:1686-1688
The linewidth enhancement factor (LEF) of an InAs/InGaAs quantum dot Fabry-Perot laser in a wide wavelength range from 1110 to 1300 nm, including ground state (GS) and exited state (ES) bands, is studied. LEF spectra were derived from amplified spont
Autor:
A. M. Nadtochiy, A. S. Payusov, Yu. M. Shernyakov, A. V. Savelyev, D.A. Livshits, Mikhail V. Maximov, N. Yu. Gordeev, N. V. Kryzhanovskaya, A. E. Zhukov, F. I. Zubov
Publikováno v:
Semiconductors. 47:1656-1660
The spectral analysis of amplified spontaneous emission is used to determine the linewidth enhancement factor (α-factor) in lasers based on InAs/InGaAs quantum dots (QDs) in a wide spectral range near the ground-state optical transition energy. The
Autor:
Mikhail V. Maximov, F. I. Zubov, Alexander Mintairov, Charis Mesaritakis, A. M. Nadtochy, A. V. Savel’ev, N. V. Kryzhanovskaya, E. M. Arakcheeva, Dimitrios Syvridis, Eduard Moiseev, A. E. Zhukov, D.A. Livshits, Andrey A. Lipovskii, Alexandros Kapsalis, M. M. Kulagina
Publikováno v:
Semiconductors. 47:1387-1390
Microring cavities (diameter D = 2.7–7 μm) with an active region based on InAs/InGaAs quantum dots are fabricated and their characteristics are studied by the microphotoluminescence method and near-field optical microscopy. A value of 22 000 is ob
Autor:
D.A. Livshits, E. A. Rafailov, Grigorii S. Sokolovskii, P. Battle, Ksenia A. Fedorova, I.O. Bakshaev
Publikováno v:
2016 International Conference Laser Optics (LO).
We demonstrate the possibility to use a fractional order of poling period of nonlinear crystal waveguides for tunable second harmonic generation. This approach allows one to extend wavelength coverage in the visible spectral range by frequency doubli
Autor:
M. M. Kulagina, S. I. Troshkov, N. V. Kryzhanovskaya, Yu. M. Zadiranov, F. I. Zubov, Eduard Moiseev, Yu. V. Kudashova, D.A. Livshits, Alexey E. Zhukov, Mikhail V. Maximov
Publikováno v:
SPIE Proceedings.
In this work, electrically-injected microdisk lasers with diameter varied from 15 to 31μm based on an InAs/InGaAs QD active region have been fabricated and tested in continuous wave regime. At room temperature, lasing is achieved at wavelength aroun
Publikováno v:
Laser Physics Letters. 9:790-795
Quasi-phase-matching is an important and widelyused technique in nonlinear optics enabling efficient frequency up-conversion. However, since its introduction almost half a century ago, this technique is well developed for near infrared (IR) but is in