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http://hdl.handle.net/2074/1719
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| Title: | Second-harmonic generation of laser radiation in a plasma with a density ripple |
| Authors: | Parashar, J
Pandey, H D |
| Keywords: | density ripple
perturbation couple
second-harmonic electromagnetic
resonant enhancement |
| Issue Date: | 1992 |
| Citation: | Plasma Science, IEEE Transactions on, 20(6), 996 - 999p. |
| Abstract: | High-power laser radiation with frequency ω1 and wave vector k1zˆ propagating through a plasma at an angle to a density ripple (0,k&oarr;0) produces current and density perturbation at (ω1,k &oarr;1+k&oarr;0). The density perturbation couples with the oscillatory velocity at (ω1 ,k&oarr;1) to produce nonlinear current at [2ω1, (2k&oarr;1+k&oarr; 0)] driving second-harmonic electromagnetic radiation. For a specific value of ripple wave number k0=k 0c, the phase-matching conditions for the second-harmonic process are satisfied, leading to resonant enhancement in the efficiency of energy conversion, k0c decreases with the frequency ω1 of the laser |
| URI: | http://eprint.iitd.ac.in/dspace/handle/2074/1719 |
| Appears in Collections: | Energy Studies [CES]
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| parasharsec1992.pdf | | 50Kb | Adobe PDF | View/Open |
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