Investigations of the small birefringence of transparent objects by strong phase modulation of probing laser radiation

1995 ◽  
Vol 12 (7) ◽  
pp. 1579 ◽  
Author(s):  
I. M. Sokolov ◽  
Ja. A. Fofanov
Keyword(s):  
Laser Radiation ◽  
Phase Modulation ◽  
Strong Phase ◽  
Transparent Objects

scholarly journals Излучение резонансной среды, возбуждаемое лазерным излучением с периодической фазовой модуляцией в режиме сильной связи поля и вещества

2019 ◽  
Vol 127 (12) ◽  
pp. 967
Author(s):  
Р.М. Архипов ◽  
М.В. Архипов ◽  
В.С. Егоров ◽  
И.А. Чехонин ◽  
М.А. Чехонин ◽  
...  
Keyword(s):  
Laser Radiation ◽  
Laser Pulse ◽  
Parametric Resonance ◽  
Frequency Modulation ◽  
Carrier Frequency ◽  
Phase Modulation ◽  
Resonant Medium ◽  
High Excitation ◽  
Effective Excitation ◽  
Combination Parametric Resonance

In this paper, the radiation of a two-level resonant medium placed in a cavity and excited by a laser pulse with periodic phase modulation is studied theoretically. The analysis is carried out on the basis of an analytical and numerical solution of the system of Maxwell-Bloch equations under conditions when the regime of strong coupling of the field and matter is realized. Under these conditions, this system is similar to a polariton laser. A high excitation efficiency of a polariton laser by a phase-modulated radiation pulse compared with a pulse without phase modulation of the carrier frequency is shown. It is shown that the main reason for the effective excitation of polariton modes of the medium is the occurrence of a difference combination parametric resonance. The results obtained open up new possibilities in the excitation of radiation from polariton lasers by low-power pumping laser radiation with frequency modulation.

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