Non-Phase Matched Stimulated Parametric Scattering in Semiconductor Plasma: Temporal Effects |
| S. Ghosh, Swati Dubey, Kamal Jain
School of Studies in Physics, Vikram University, Ujjain, Madhya Pradesh, 456001, India |
| Received: February 12, 2018; in final form February 27, 2019 |
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| Present paper is an effort to study stimulated parametric scattering of an electromagnetic wave propagating in a doped semiconductor plasma medium. We study theoretically the time evolution of a parametrically amplified wave in a non-phase matched semiconductor plasma medium. In order to describe the dynamics of the system, Maxwell's equations and hydrodynamic model for one component plasma along with coupled mode theory are used. These equations are solved numerically in the whole time range up to the steady state for a crystal. Following standard approach expressions for second order optical susceptibility, steady state, and transient gain coefficient for stimulated parametric scattering have been derived. Numerical estimation is made by considering an n-CdS irradiated by an intense laser at 77 K. This study suggests design of an optical parametric amplifier with tunable temporal characteristics, which are found to agree well with the experimental findings. |
DOI:10.12693/APhysPolA.135.363 PACS numbers: 42.65.-k, 42.65.An, 52.38.-r, 52.38.Dx |