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Nonlinear optics
Radiation of a resonant medium excited by a periodically phase-modulated laser in the regime of strong coupling between the field and the matter
R. M. Arkhipovabc, M. V. Arkhipovab, V. S. Egorova, I. A. Chekhonina, M. A. Chekhonina, S. N. Bagayevd a St. Petersburg State University, 199034, St. Petersburg, Russia
b ITMO University, 197101, St. Petersburg, Russia
c Ioffe Institute, Russian Academy of Sciences, 194021, St. Petersburg, Russia
d Institute of Laser Physics, Siberian Branch, Russian Academy of Sciences, 630090, Novosibirsk, Russia
Abstract:
The radiation of a two-level resonant medium that is placed into a cavity and is excited by a periodically phase modulated laser pulse is studied theoretically. The radiation is analyzed based on the analytical and numerical solutions of the system of Maxwell–Bloch equations under conditions of a strong coupling between the field and the matter. Under these conditions, this system is similar to a polariton laser. The excitation efficiency of a polariton laser by a phase-modulated radiation pulse is shown to be high compared to a pulse without phase modulation of the carrier frequency. It is shown that the main reason for the efficient excitation of polariton modes in the medium is the appearance of difference combination parametric resonance. The obtained results open up new possibilities for the excitation of radiation of polariton lasers by low-power frequency-modulated pump laser radiation.
Keywords:
polariton laser, phase modulation, strong coupling, Rabi vacuum splitting.
Received: 07.07.2019 Revised: 07.07.2019 Accepted: 12.08.2019
Citation:
R. M. Arkhipov, M. V. Arkhipov, V. S. Egorov, I. A. Chekhonin, M. A. Chekhonin, S. N. Bagayev, “Radiation of a resonant medium excited by a periodically phase-modulated laser in the regime of strong coupling between the field and the matter”, Optics and Spectroscopy, 127:6 (2019), 967–975; Optics and Spectroscopy, 127:6 (2019), 1062–1069
Linking options:
https://www.mathnet.ru/eng/os525 https://www.mathnet.ru/eng/os/v127/i6/p967
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