Zobrazeno 1 - 10
of 171
pro vyhledávání: '"Boiko D"'
Autor:
Zhyvotovska A. I., Isakov R. I., Boiko D. I., Bodnar L. A., Borysenko V. V., Shkidchenko O. I.
Publikováno v:
Вісник проблем біології і медицини, Iss 1, Pp 33--8 (2022)
In a situation of rapidly changing environmental conditions and the growth of stress of different strengths and orientations, people are more likely to experience anxiety. The results of epidemiological studies show that up to 33.7% of the population
Externí odkaz:
https://doaj.org/article/b7dedd04e3064a2bb76ba46c50881740
Autor:
Antonov, A. V., Kuritsyn, D. I., Gajic, A., Orlova, E. E., Radovanovic, J., Vaks, V. V., Boiko, D. L.
We report on experimental observation of low-threshold Risken-Nummedal-Graham-Haken (RNGH) instability in mid-infrared InGaAs/InAlAs Quantum Cascade Lasers (QCLs) operating at 8 $\mu$m wavelength. The devices employ sequential resonant tunneling and
Externí odkaz:
http://arxiv.org/abs/1711.10749
Autor:
Mikhalychev, A., Mogilevtsev, D., Slepyan, G. Ya., Karuseichyk, I., Buchs, G., Boiko, D. L., Boag, A.
Publikováno v:
Phys. Rev. Applied 9, 024021 (2018)
Quantum antennas can shape the spatial entanglement of emitted photons originating from specific initial non-Dicke entangled states of antenna emitters. In contrast to a classical antenna, a quantum antenna might not be affecting the amplitudes and i
Externí odkaz:
http://arxiv.org/abs/1709.02724
Autor:
Boiko, D. L., Zeng, X., Stadelmann, T., Grossmann, S., Hoogerwerf, A., Weig, T., Schwarz, U. T., Sulmoni, L., Lamy, J. -M., Grandjean, N.
We report superfluorescent (SF) emission in electrically pumped InGaN/InGaN QW lasers with saturable absorber. In particular, we observe a superlinear growth of the peak power of SF pulses with increasing amplitude of injected current pulses and attr
Externí odkaz:
http://arxiv.org/abs/1302.0263
Autor:
Boiko, D. L., Vasil'ev, P. P.
We show that superradiant emission (SR) in semiconductor laser diode structures is governed by the master equation of the form of Ginzburg-Landau equation or Gross-Pitaevskii equation for a phase transition to coherent matter state. We conjectured co
Externí odkaz:
http://arxiv.org/abs/1112.1298
Autor:
Boiko, D. L., Vasil'ev, P. P.
We analyze theoretically a possibility of the superradiant emission (SR) in GaN-based quantum well (QW) laser heterostructures. Our model is based on travelling wave Maxwell-Bloch equations predicts building up of macroscopic coherences in the ensemb
Externí odkaz:
http://arxiv.org/abs/1103.5507
Autor:
Boiko, D. L., Gunther, N. J., Brauer, N., Sergio, M., Niclass, C., Beretta, G. B., Charbon, E.
Publikováno v:
Optics Express 17 (2009) 15087--15103
It is not widely appreciated that many subtleties are involved in the accurate measurement of intensity-correlated photons; even for the original experiments of Hanbury Brown and Twiss (HBT). Using a monolithic 4x4 array of single-photon avalanche di
Externí odkaz:
http://arxiv.org/abs/0906.4563
Autor:
Boiko, D. L., Gunther, N. J., Brauer, N., Sergio, M., Niclass, C., Beretta, G. B., Charbon, E.
Publikováno v:
New J. Phys. 11 (2009) 013001
We report on a novel device capable of imaging second-order spatio-temporal correlations g2(x,t) between photons. The imager is based on a monolithic array of single-photon avalanche diodes (SPAD) implemented in CMOS technology and a simple algorithm
Externí odkaz:
http://arxiv.org/abs/0807.3025
Publikováno v:
Opt. Lett. 34 (2009) 362-364
A fluorescence decay of high-affinity non-ratiometric Ca2+ indicator Oregon Green BAPTA-1 (OGB-1) is analyzed with unprecedented temporal resolution in the two-photon excitation regime. A triple exponential decay is shown to best fit the fluorescence
Externí odkaz:
http://arxiv.org/abs/0807.2756
Autor:
Boiko, D. L.
Publikováno v:
PIERS Online, 4 (2008) 831-837
Coupled states of semiconductor quantum well (QW) excitons and photons in a two dimensional (2D) periodic lattice of microcavities are analyzed theoretically, revealing allowed bands and forbidden gaps in the energy spectrum of exciton polaritons. Ph
Externí odkaz:
http://arxiv.org/abs/0804.0035