Ultrashort pulse amplification in the induced optical anisotropic medium

Mariam H. Hovhannisyan, Mariam H. Hovhannisyan, Atom Z. Muradyan, Atom Z. Muradyan, Rafael K. Drampyan, Rafael K. Drampyan
1899 Photonics and Micro- and Nano-structured Materials 2011  
The coherent response accumulation method is used to assess the ability to amplify the polarization rotated component of a probe beam about two-photon resonance conditions. Atomic gas of alkaline metal atoms is chosen as a medium of interest. Probe wave connects the atomic ground state 1/ 2 nS with the excited doublet 1/ 2,3/ 2 nP , which in its turn is coupled to the higher excited level 1/ 2 n S c by an intense pump field. The relaxation processes and the Doppler effect are also included into
more » ... also included into the theory. It is shown that sequentially changing the input probe field's phase from 0 till and vice-versa, one can get about 2 times narrowing and more than 14 times amplification of intensity for the final part of rotated component of the probe wave. Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/15/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx Proc. of SPIE Vol. 8414 841410-3 Downloaded From: http://proceedings.spiedigitallibrary.org/ on 06/15/2016 Terms of Use: http://spiedigitallibrary.org/ss/TermsOfUse.aspx
doi:10.1117/12.923615 fatcat:3pe7bbnjwrg4dphh7mqdmefm5y