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25 January 2012 Ultrashort pulse amplification in the induced optical anisotropic medium
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Proceedings Volume 8414, Photonics and Micro- and Nano-structured Materials 2011; 841410 (2012) https://doi.org/10.1117/12.923615
Event: Photonics and Micro- and Nano- structured Materials 2011, 2011, Yerevan, Armenia
Abstract
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 nS1/2 with the excited doublet nP1/2,3/2, which in its turn is coupled to the higher excited level n'S1/2 by an intense pump field. The relaxation processes and the Doppler effect are 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.
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Mariam H. Hovhannisyan and Atom Zh. Muradyan "Ultrashort pulse amplification in the induced optical anisotropic medium", Proc. SPIE 8414, Photonics and Micro- and Nano-structured Materials 2011, 841410 (25 January 2012); https://doi.org/10.1117/12.923615
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