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Evolution of Sommer...
Evolution of Sommerfeld and Brillouin precursors in intermediate spectral regimes
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Jeong, H. (författare)
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Österberg, U. (författare)
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- Hansson, Tobias, 1983 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2009
- 2009
- Engelska.
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Ingår i: Journal of the Optical Society of America B: Optical Physics. - 1520-8540 .- 0740-3224. ; 26:12, s. 2455-2460
- Relaterad länk:
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https://research.cha...
Abstract
Ämnesord
Stäng
- We study, numerically, the transitional behavior of precursors in the intermediate spectral regime between twocontrasting regimes for which analytical solutions exist. The two opposite regimes are, respectively, defined as(1) off-resonance carrier with a spectral pulse width comparable to the medium’s absorption linewidth and (2)on-resonance carrier with the spectral width of the pulse much narrower than the absorption linewidth. Beyondthese two regimes, there have been few studies of precursors. In this paper, we investigate precursordynamics for the intermediate spectral regime using the finite-difference time domain method. The parameterthat has the strongest influence on the precursor dynamics is found to be the plasma frequency, ωp. This researchis applicable for controlling transients in fast communication systems.
Ämnesord
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
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- ref (ämneskategori)
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