Zobrazeno 1 - 10
of 161
pro vyhledávání: '"Ihar Babushkin"'
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-8 (2022)
There are many possible mechanisms of high-harmonic generation from crystals. Here the authors discuss the role of the Bloch oscillation to nonlinear response of the crystal and harmonic radiation from it.
Externí odkaz:
https://doaj.org/article/1d76e14657c0479aa9b444522d56f8e9
Autor:
Ihar Babushkin, Liping Shi (石理平), Ayhan Demircan, Uwe Morgner, Joachim Herrmann, Anton Husakou
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043151 (2023)
The optical properties of metallic nanoparticles are most often considered in terms of plasmons, the coupled states of light and quasifree electrons. Confinement of electrons inside the nanostructure leads to another, very different type of resonance
Externí odkaz:
https://doaj.org/article/a7dc0494932e49939cb48554592d37bc
Autor:
Rostislav Arkhipov, Anton Pakhomov, Mikhail Arkhipov, Ihar Babushkin, Ayhan Demircan, Uwe Morgner, Nikolay Rosanov
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
Abstract We study theoretically a possibility of creation and ultrafast control (erasing, spatial frequency multiplication) of population density gratings in a multi-level resonant medium having a resonance transition frequency in the THz range. Thes
Externí odkaz:
https://doaj.org/article/60728ab848044e2fa6934ce9fb996b54
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
Abstract Here we consider coherent mode-locking (CML) regimes in single-section cavity lasers, taking place for pulse durations less than atomic population and phase relaxation times, which arise due to coherent Rabi oscillations of the atomic invers
Externí odkaz:
https://doaj.org/article/5e0f962b0f92455e9eee79db115e692f
Autor:
Ihar Babushkin, Shalva Amiranashvili, Carsten Bree, Uwe Morgner, Gunter Steinmeyer, Ayhan Demircan
Publikováno v:
IEEE Photonics Journal, Vol 8, Iss 3, Pp 1-13 (2016)
Group-velocity matched cross-phase modulation between a fundamental soliton and a dispersive wave packet has been previously suggested for optical switching applications similar to an optical transistor. Moreover, the nonlinear interaction in the res
Externí odkaz:
https://doaj.org/article/e0c1127920c44af195f9d91c4a6ba049
Publikováno v:
New Journal of Physics, Vol 17, Iss 2, p 023060 (2015)
The spectrum of terahertz (THz) emission in gases via ionizing two-color femtosecond pulses is analyzed by means of a semi-analytic model and numerical simulations in 1D, 2D and 3D geometries taking into account propagation effects of both pump and T
Externí odkaz:
https://doaj.org/article/4f1072153b384dc0aef62ba9db865d16
Publikováno v:
Physical Review E. 107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a991f2aad045e84635332e00a0de8e1a
https://doi.org/10.1103/physreve.107.015201
https://doi.org/10.1103/physreve.107.015201
Autor:
N. A. Veretenov, Rostislav Arkhipov, A. V. Dadeko, N.N. Rosanov, Ihar Babushkin, Sergey V. Fedorov, Mikhail Arkhipov, D. A. Tumakov, I. A. Aleksandrov
Publikováno v:
Quantum Electronics. 51:959-969
Studies of extreme nonlinear optical effects, in which dissipative factors such as absorption and amplification of light in a medium play a fundamental role, are reviewed. The generation of pulses with extremely short duration down to unipolar ones i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72558c0a587a8182939c5627c49627d1
https://doi.org/10.1070/qel17637
https://doi.org/10.1070/qel17637
Publikováno v:
JETP Letters. 114:250-255
In this letter, excitation of discrete levels in a quantum system is considered, when the duration of the driving pulse is changed from multi-cycle to ultra-short half-cycle regime. It is shown that, as the number of optical cycles decreases, the sys
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::206f264417fba7fe2b0910a21c9a1a3f
https://doi.org/10.1134/s002136402117001x
https://doi.org/10.1134/s002136402117001x
A refractive index step, moving at the speed of light, can serve as a trap for weak light waves. Here we shed light on highly unusual features of such trapping, making it fundamentally different from conventional “resting” cavities. First, such t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ac650d53a79d400afa6755909299631
https://doi.org/10.21203/rs.3.rs-1982423/v1
https://doi.org/10.21203/rs.3.rs-1982423/v1
