Results 201 to 210 of about 38,600 (257)
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Observation of interference between four-wave mixing and six-wave mixing
Optics Letters, 2007We report generation of four-wave mixing enhanced by electromagnetically induced transparency and optical pumping in a ladder-type atomic system. When two pumping laser beams are used to form a conjugate small-angle static grating, both four-wave and six-wave mixing processes are shown to exist at the same time. Interference between these two nonlinear
Yanpeng Zhang, Andy W Brown
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Four-wave mixing in traveling-wave semiconductor amplifiers
IEEE Journal of Quantum Electronics, 1995The traveling-wave equations of four-wave mixing in semiconductor amplifiers are solved analytically including saturation of the amplifier. Excellent agreement is obtained with numerical solutions of the traveling-wave equations. The analytical model is used to analyze a highly nondegenerate four-wave mixing experiment in a bulk semiconductor amplifier.
Antonio Mecozzi, E Iannone, S Scotti
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Forward four-wave mixing with defocusing nonlinearity
Optics Letters, 2007We experimentally demonstrate degenerate, forward four-wave mixing effects in a self-defocusing photorefractive medium, in both one and two transverse dimensions. We observe the nonlinear evolution of new modes as a function of propagation distance, in both the near-field and far-field (Fourier space) regions.
Shu Jia, Wenjie Wan, Jason Fleischer
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Physical Review A, 1993
We will demonstrate that four-wave mixing with linearly chirped (phase-modulated) pulses is a unique tool for obtaining information on the dynamics and level structure of,a system. Especially, it will be shown that the transient-grating-scattering type of experiment with chirped pulses provides an immediate answer to the question of whether the ...
DUPPEN, K +3 more
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We will demonstrate that four-wave mixing with linearly chirped (phase-modulated) pulses is a unique tool for obtaining information on the dynamics and level structure of,a system. Especially, it will be shown that the transient-grating-scattering type of experiment with chirped pulses provides an immediate answer to the question of whether the ...
DUPPEN, K +3 more
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Physical Review A, 1986
We develop the formalism for studying transient four-wave-mixing phenomena in a Raman medium, and apply it to the study of solitary-wave propagation. We consider the problems of second-Stokes generation, anti-Stokes scattering, and two-pump Raman scattering.
, Ackerhalt, , Milonni
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We develop the formalism for studying transient four-wave-mixing phenomena in a Raman medium, and apply it to the study of solitary-wave propagation. We consider the problems of second-Stokes generation, anti-Stokes scattering, and two-pump Raman scattering.
, Ackerhalt, , Milonni
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Instabilities of four-wave mixing
Nonlinear Guided Waves and Their Applications, 2005We predict that four-wave mixing driven by a dual frequency input undergoes different instability scenarios encompassing modulational instability or multiple shock formation in the anomalous and normal dispersion regime, respectively.
VALENTINI, Silvia +3 more
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Four-wave-mixing interferometer
Optics Letters, 1996We have developed a new method of determining in time both the real and the imaginary parts of third-order nonlinear-optical coefficients. In this method the phase-conjugated four-wave-mixing signal beam interferes with one of the transmitted pump beams.
N, Tang, J P, Partanen
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Degenerate four-wave mixing in plasmas
Optics Letters, 1979We 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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Entanglement in a four-wave mixing process
Optics Letters, 2017We investigate different kinds of entanglement in a four-wave mixing process with a degenerate pump. After analyses on means and quantum fluctuations of the three output beams (Stokes, anti-Stokes, and pump), we verify the existence of genuine tripartite entanglement, and quantify bipartite, two-mode, as well as tripartite entanglement with the ...
Zhan, Zheng +3 more
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Polariton effects in four-wave mixing
Physical Review B, 1994We 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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