Guiding of Waves between Absorbing Walls

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DOI: 10.4236/jmp.2012.37076    2,511 Downloads   4,436 Views   Citations

ABSTRACT

Guiding of waves between parallel absorbing walls is considered. The principal mode is constructed; its absorption is estimated. The agreement with previous results about reflection of waves from absorbing walls is discussed. Roughly, the effective absorption of the principal mode is proportional the minus third power of the distance between walls, minus 1.5 d power of the wavenumber and minus 0.5 power of the local absorption of the wave in the wall. This estimate is suggested as hint for the design of the atomic waveguides, and also as tool for optimization of attenuation of the amplified spontaneous emission (and suppression of parasitic oscillations) in high power lasers.

Cite this paper

D. Kouznetsov and M. Morinaga, "Guiding of Waves between Absorbing Walls," Journal of Modern Physics, Vol. 3 No. 7, 2012, pp. 553-560. doi: 10.4236/jmp.2012.37076.

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