The Experts below are selected from a list of 240 Experts worldwide ranked by ideXlab platform
Martin Devaud - One of the best experts on this subject based on the ideXlab platform.
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Phase Conjugation with a single bubble.
Physical Review E, 2005Co-Authors: Valentin Leroy, Jean-claude Bacri, Thierry Hocquet, Martin DevaudAbstract:It is recalled how the nonlinear interaction between a gas bubble and an external extra pressure can yield Phase Conjugation. Using the Glauber representation, we show that the effect of the latter is formally analogous to that of a $\ensuremath{\pi}$ pulse in nuclear magnetic resonance, so that the acoustic equivalent of spin echoes may be expected in a bubble cloud. An experimental attempt to observe Phase Conjugation is reported in the single-bubble case.
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Phase Conjugation with a single bubble.
Physical review. E Statistical nonlinear and soft matter physics, 2005Co-Authors: Valentin Leroy, Jean-claude Bacri, Thierry Hocquet, Martin DevaudAbstract:It is recalled how the nonlinear interaction between a gas bubble and an external extra pressure can yield Phase Conjugation. Using the Glauber representation, we show that the effect of the latter is formally analogous to that of a pi pulse in nuclear magnetic resonance, so that the acoustic equivalent of spin echoes may be expected in a bubble cloud. An experimental attempt to observe Phase Conjugation is reported in the single-bubble case.
Demetri Psaltis - One of the best experts on this subject based on the ideXlab platform.
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Spectral Phase Conjugation with cross-Phase modulation compensation
Optics express, 2004Co-Authors: Mankei Tsang, Demetri PsaltisAbstract:Spectral Phase Conjugation with short pump pulses in a third-order nonlinear material is analyzed in depth. It is shown that if signal amplification is considered, the conversion efficiency can be significantly higher than previously considered, while the spectral Phase Conjugation operation remains accurate. A novel method of compensating for cross-Phase modulation, the main parasitic effect, is also proposed. The validity of our theory and the performance of the spectral Phase Conjugation scheme are studied numerically.
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Dispersion and nonlinearity compensation by spectral Phase Conjugation.
Optics letters, 2003Co-Authors: Mankei Tsang, Demetri PsaltisAbstract:We propose the use of spectral Phase Conjugation to compensate for dispersion of all orders, self-Phase modulation, and self-steepening of an optical pulse in a fiber. Although this method cannot compensate for loss and intrapulse Raman scattering, it is superior to the previously suggested midway temporal Phase Conjugation method if high-order dispersion is a main source of distortion. The reshaping performance of our proposed scheme and a combined temporal and spectral Phase Conjugation scheme in the presence of uncompensated effects is studied numerically.
Valentin Leroy - One of the best experts on this subject based on the ideXlab platform.
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Phase Conjugation with a single bubble.
Physical Review E, 2005Co-Authors: Valentin Leroy, Jean-claude Bacri, Thierry Hocquet, Martin DevaudAbstract:It is recalled how the nonlinear interaction between a gas bubble and an external extra pressure can yield Phase Conjugation. Using the Glauber representation, we show that the effect of the latter is formally analogous to that of a $\ensuremath{\pi}$ pulse in nuclear magnetic resonance, so that the acoustic equivalent of spin echoes may be expected in a bubble cloud. An experimental attempt to observe Phase Conjugation is reported in the single-bubble case.
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Phase Conjugation with a single bubble.
Physical review. E Statistical nonlinear and soft matter physics, 2005Co-Authors: Valentin Leroy, Jean-claude Bacri, Thierry Hocquet, Martin DevaudAbstract:It is recalled how the nonlinear interaction between a gas bubble and an external extra pressure can yield Phase Conjugation. Using the Glauber representation, we show that the effect of the latter is formally analogous to that of a pi pulse in nuclear magnetic resonance, so that the acoustic equivalent of spin echoes may be expected in a bubble cloud. An experimental attempt to observe Phase Conjugation is reported in the single-bubble case.
Mankei Tsang - One of the best experts on this subject based on the ideXlab platform.
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Spectral Phase Conjugation with cross-Phase modulation compensation
Optics express, 2004Co-Authors: Mankei Tsang, Demetri PsaltisAbstract:Spectral Phase Conjugation with short pump pulses in a third-order nonlinear material is analyzed in depth. It is shown that if signal amplification is considered, the conversion efficiency can be significantly higher than previously considered, while the spectral Phase Conjugation operation remains accurate. A novel method of compensating for cross-Phase modulation, the main parasitic effect, is also proposed. The validity of our theory and the performance of the spectral Phase Conjugation scheme are studied numerically.
-
Dispersion and nonlinearity compensation by spectral Phase Conjugation.
Optics letters, 2003Co-Authors: Mankei Tsang, Demetri PsaltisAbstract:We propose the use of spectral Phase Conjugation to compensate for dispersion of all orders, self-Phase modulation, and self-steepening of an optical pulse in a fiber. Although this method cannot compensate for loss and intrapulse Raman scattering, it is superior to the previously suggested midway temporal Phase Conjugation method if high-order dispersion is a main source of distortion. The reshaping performance of our proposed scheme and a combined temporal and spectral Phase Conjugation scheme in the presence of uncompensated effects is studied numerically.
Jean-claude Bacri - One of the best experts on this subject based on the ideXlab platform.
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Phase Conjugation with a single bubble.
Physical Review E, 2005Co-Authors: Valentin Leroy, Jean-claude Bacri, Thierry Hocquet, Martin DevaudAbstract:It is recalled how the nonlinear interaction between a gas bubble and an external extra pressure can yield Phase Conjugation. Using the Glauber representation, we show that the effect of the latter is formally analogous to that of a $\ensuremath{\pi}$ pulse in nuclear magnetic resonance, so that the acoustic equivalent of spin echoes may be expected in a bubble cloud. An experimental attempt to observe Phase Conjugation is reported in the single-bubble case.
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Phase Conjugation with a single bubble.
Physical review. E Statistical nonlinear and soft matter physics, 2005Co-Authors: Valentin Leroy, Jean-claude Bacri, Thierry Hocquet, Martin DevaudAbstract:It is recalled how the nonlinear interaction between a gas bubble and an external extra pressure can yield Phase Conjugation. Using the Glauber representation, we show that the effect of the latter is formally analogous to that of a pi pulse in nuclear magnetic resonance, so that the acoustic equivalent of spin echoes may be expected in a bubble cloud. An experimental attempt to observe Phase Conjugation is reported in the single-bubble case.
