Spatial coherence of the Stokes radiation generated by dynamic holograms in Raman-active media
Abstract
The recording of dynamic holograms in Raman-active media is investigated as a method of achieving directional coherent emission in the simulated scattering of spatially nonuniform pump beams. In particular, a study of the spatial coherence of the stimulated Raman backscattering generated by reflection dynamic holograms written by means of traveling intensity waves is reported. A study is also made of comoving stimulated Raman scattering excited by transmission holograms formed from standing waves. It is shown that the dynamic hologram acts on excited Stokes light as a narrow-band filter limiting the spectrum of the generated spatial frequencies and thereby increasing the spatial coherence of the Stokes radiation.
- Publication:
-
Pisma v Zhurnal Tekhnischeskoi Fiziki
- Pub Date:
- November 1984
- Bibcode:
- 1984PZhTF..10.1364B
- Keywords:
-
- Coherent Light;
- Holography;
- Laser Pumping;
- Raman Spectra;
- Spatial Filtering;
- Stokes Law Of Radiation;
- Backscattering;
- Bragg Angle;
- Luminous Intensity;
- Phase Conjugation;
- Standing Waves;
- Stimulated Emission;
- Traveling Waves;
- Lasers and Masers