Dynamic effect of phase conjugation on wave localization
نویسندگان
چکیده
منابع مشابه
Dynamic effect of phase conjugation on wave localization
We investigate what would happen to the time dependence of a pulse reflected by a disordered single-mode waveguide, if it is closed at one end not by an ordinary mirror but by a phase-conjugating mirror. We find that the waveguide acts like a virtual cavity with resonance frequency equal to the working frequency ω0 of the phase-conjugating mirror. The decay in time of the average power spectrum...
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15 صفحه اولEffect of photon statistics on phase conjugation by four-wave mixing.
The effects of fluctuation associated with chaotic fields on degenerate four-wave mixing are studied. The chaotic field phase conjugates more efficiently than the single-mode coherent light for both weak and strong fields, the reflectivity being enhanced by a factor of 2 in the former case. The fluctuations are also shown to have a significant effect on reflectivity as a function of detuning.
متن کاملSpectral phase conjugation by quasi-phase-matched three-wave mixing
A novel spectral phase conjugation scheme by three-wave mixing is proposed. It is shown that a phase-conjugated and time-reversed replica of the incoming signal can be generated, if appropriate quasi-phase matching is achieved and the three-wave mixing process is transversely pumped by a short second-harmonic pulse. 2004 Elsevier B.V. All rights reserved. PACS: 42.65.Hw; 42.65.Yj
متن کاملPhase conjugation by four-wave mixing of statistical beams.
A study of the influence of the spatial structure and statistics of the pump beams in the phaseconjugation process is made, showing that the reflectivity varies along the phase-conjugation mirror when the phase factor in the coupling equations that describe the process is not constant. The mutual coherence function of the generated field is calculated from the mutual reflectivity of the mirror ...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2002
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.65.174203