Results 241 to 250 of about 409,958 (292)

Phase-sensitive four-wave mixing interferometer

Optics Letters, 2014
A nonlinear interferometer is constructed using a dual-pump, dual-signal four-wave mixing (FWM) process. The generated idlers are categorized into phase-insensitive and phase-sensitive (PS) outputs according to whether the power is sensitive to the phase difference of the input signals.
Xuelei, Fu, Chester, Shu
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Degenerate four-wave mixing in plasmas

Optics Letters, 1979
We report an analysis of degenerate four-wave mixing in uniform plasmas and show that the magnitude of the third-order susceptibility (varying as lambda(2)) can be comparable to (10(-11) esu for lambda = 10.6 microm) or orders of magnitude larger (10(-3) esu for lambda= 10 cm) than the corresponding susceptibility in typical nonlinear materials.
D G, Steel, J F, Lam
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Polariton effects in four-wave mixing

Physical Review B, 1994
We show that polariton effects lead to time-delayed components in the time-resolved four-wave-mixing (FWM) signal. Hence we find that recent observations in FWM experiments that have been ascribed to many-body Coulomb interactions can also be explained from the formation of exciton polaritons.
, Bakker, , Kurz
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Near-Degenerate Four-Wave-Mixing Microscopy

Nano Letters, 2009
Fluorescence microscopy has been widely used to explore the nanoscale world because of its superb sensitivity, but it is limited to fluorescent samples. Hence, various spectroscopic contrasts have been explored for imaging nonfluorescent species. Here we report a multiphoton microscopy based on single-beam near-degenerate four wave mixing (ND-FWM), by ...
Wei, Min, Sijia, Lu, Markus, Rueckel, Gary R, Holtom, X Sunney, Xie   +4 more
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Four-wave mixing with femtosecond pulses

Physica Scripta, 2009
The recent development of noncollinear optical parametric amplifiers (NOPAs) has equipped many laboratories with widely tunable, spectrally broad ultrashort laser pulses with a duration of 15-30 fs. The present work deals with sub-20 fs pulsed degenerate four wave mixing (DFWM) on high-frequency vibrational levels in all-trans-beta-carotene.
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Squeezing in nondegenerate four-wave mixing

Physical Review A, 1986
Ways to minimize spontaneous-emission noise due to quantum fluctuations in the medium are a major consideration in experiments designed to produce squeezed states of light. Motivated by the recent experiments of Slusher et al. we present a fully quantized model of nondegenerate four-wave mixing. We show that the spontaneous-emission noise, important at
Reid, M. D., Walls, D. F.
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Entangled Images from Four-Wave Mixing

Science, 2008
Two beams of light can be quantum mechanically entangled through correlations of their phase and intensity fluctuations. For a pair of spatially extended image-carrying light fields, the concept of entanglement can be applied not only to the entire images but also to their smaller details.
Vincent, Boyer, Alberto M, Marino, Raphael C, Pooser, Paul D, Lett   +3 more
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Four-wave mixing in microstructure fiber

Optics Letters, 2001
We report what we believe to be the first experimental demonstration of nondegenerate four-wave mixing in a microstructure fiber. The effect of the chi((3)) nonlinearity is enhanced in such a fiber because of the small core area, and we achieve phase matching by operating near the zero-dispersion wavelength (?750 nm) . We have observed parametric gains
J E, Sharping, M, Fiorentino, A, Coker, P, Kumar, R S, Windeler   +4 more
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Nondegenerate Four-Wave Mixing in CuCl

International Conference on Luminescence - 1984, 1984
See TuG7 for summary.
R. Levy, F. Tomasini, J.B. Grun
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Four-Wave Frequency Mixing in Gases

1987
Four wave frequency mixing in gases is now understood in a quantitative manner and has been used for the design of coherent infrared as well as vacuum uv sources. A brief review of the fundamental processes is given. The vacuum uv sources have already extended laser spectroscopy into the vacuum ultraviolet spectral region below 200 nm. Several examples
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