The Experts below are selected from a list of 57030 Experts worldwide ranked by ideXlab platform
Margaret M Murnane - One of the best experts on this subject based on the ideXlab platform.
-
Sawtooth grating-assisted Phase-Matching.
Optics express, 2010Co-Authors: Pavel Sidorenko, Margaret M Murnane, Alon Bahabad, Henry C. Kapteyn, Tenio Popmintchev, Maxim Kozlov, Oren CohenAbstract:We show that a sawtooth Phase-modulation is the optimal profile for grating assisted Phase Matching (GAPM). Perfect (sharp) sawtooth modulation fully corrects the Phase-mismatch, exhibiting conversion equal to conventional Phase Matching, while smoothened, approximate sawtooth structures are more efficient than sinusoidal or square GAPM modulations that were previously studied. As an example, we demonstrate numerically optically-induced sawtooth GAPM for high harmonic generation. Sawtooth GAPM is the most efficient method for increasing the conversion efficiency of high harmonic generation through quasi-Phase-Matching, with an ultimate efficiency that closely matches the ideal Phase-Matching case.
-
Generalized spatiotemporal quasi Phase Matching
Conference on Lasers and Electro-Optics 2010, 2010Co-Authors: Alon Bahabad, Margaret M Murnane, Henry C. KapteynAbstract:We develop a description of nonlinear optics where quasi-Phase-Matching of both momentum and energy mismatch can be implemented by employing both spatial and temporal modulations. This generalized quasi-Phase-Matching technique could allow unique applications.
-
Sawtooth grating-assisted-Phase-Matching
Conference on Lasers and Electro-Optics International Quantum Electronics Conference, 2009Co-Authors: Pavel Sidorenko, Margaret M Murnane, Alon Bahabad, Henry C. Kapteyn, Tenio Popmintchev, Oren CohenAbstract:A quasi-Phase-Matching method where the modulation has a sawtooth profile and the Phase-mismatch is almost fully corrected is suggested. Schemes for implementing sawtooth grating-assisted-Phase-Matching in low-order as well as high-order harmonic generation are proposed.
-
Quasi-periodic and random quasi-Phase Matching of high harmonic generation
Optics Letters, 2008Co-Authors: Alon Bahabad, Margaret M Murnane, Oren Cohen, Henry C. KapteynAbstract:Quasi-Phase Matching schemes employing quasi-periodic or random spatial modulations, previously applied to perturbative nonlinear optics, are demonstrated theoretically for the extreme nonlinear optical process of high harmonic generation. We show that quasi-periodic quasi-Phase Matching of high harmonic generation can be used for simultaneous enhancement of arbitrarily chosen spectral regions. We also demonstrate enhancement of a single extremely wide bandwidth using random quasi-Phase Matching.
-
All-Optical Quasi-Phase Matching in Extreme Nonlinear Optics
Optics and Photonics News, 2007Co-Authors: Amy L. Lytle, Margaret M Murnane, Oren Cohen, Xiaoshi Zhang, Henry C. KapteynAbstract:Phase Matching is a necessity, but what happens in the extreme? Can we use the nonlinear processes to create the necessary Phase Matching?
Henry C. Kapteyn - One of the best experts on this subject based on the ideXlab platform.
-
Sawtooth grating-assisted Phase-Matching.
Optics express, 2010Co-Authors: Pavel Sidorenko, Margaret M Murnane, Alon Bahabad, Henry C. Kapteyn, Tenio Popmintchev, Maxim Kozlov, Oren CohenAbstract:We show that a sawtooth Phase-modulation is the optimal profile for grating assisted Phase Matching (GAPM). Perfect (sharp) sawtooth modulation fully corrects the Phase-mismatch, exhibiting conversion equal to conventional Phase Matching, while smoothened, approximate sawtooth structures are more efficient than sinusoidal or square GAPM modulations that were previously studied. As an example, we demonstrate numerically optically-induced sawtooth GAPM for high harmonic generation. Sawtooth GAPM is the most efficient method for increasing the conversion efficiency of high harmonic generation through quasi-Phase-Matching, with an ultimate efficiency that closely matches the ideal Phase-Matching case.
-
Generalized spatiotemporal quasi Phase Matching
Conference on Lasers and Electro-Optics 2010, 2010Co-Authors: Alon Bahabad, Margaret M Murnane, Henry C. KapteynAbstract:We develop a description of nonlinear optics where quasi-Phase-Matching of both momentum and energy mismatch can be implemented by employing both spatial and temporal modulations. This generalized quasi-Phase-Matching technique could allow unique applications.
-
Sawtooth grating-assisted-Phase-Matching
Conference on Lasers and Electro-Optics International Quantum Electronics Conference, 2009Co-Authors: Pavel Sidorenko, Margaret M Murnane, Alon Bahabad, Henry C. Kapteyn, Tenio Popmintchev, Oren CohenAbstract:A quasi-Phase-Matching method where the modulation has a sawtooth profile and the Phase-mismatch is almost fully corrected is suggested. Schemes for implementing sawtooth grating-assisted-Phase-Matching in low-order as well as high-order harmonic generation are proposed.
-
Quasi-periodic and random quasi-Phase Matching of high harmonic generation
Optics Letters, 2008Co-Authors: Alon Bahabad, Margaret M Murnane, Oren Cohen, Henry C. KapteynAbstract:Quasi-Phase Matching schemes employing quasi-periodic or random spatial modulations, previously applied to perturbative nonlinear optics, are demonstrated theoretically for the extreme nonlinear optical process of high harmonic generation. We show that quasi-periodic quasi-Phase Matching of high harmonic generation can be used for simultaneous enhancement of arbitrarily chosen spectral regions. We also demonstrate enhancement of a single extremely wide bandwidth using random quasi-Phase Matching.
-
All-Optical Quasi-Phase Matching in Extreme Nonlinear Optics
Optics and Photonics News, 2007Co-Authors: Amy L. Lytle, Margaret M Murnane, Oren Cohen, Xiaoshi Zhang, Henry C. KapteynAbstract:Phase Matching is a necessity, but what happens in the extreme? Can we use the nonlinear processes to create the necessary Phase Matching?
Oren Cohen - One of the best experts on this subject based on the ideXlab platform.
-
Sawtooth grating-assisted Phase-Matching.
Optics express, 2010Co-Authors: Pavel Sidorenko, Margaret M Murnane, Alon Bahabad, Henry C. Kapteyn, Tenio Popmintchev, Maxim Kozlov, Oren CohenAbstract:We show that a sawtooth Phase-modulation is the optimal profile for grating assisted Phase Matching (GAPM). Perfect (sharp) sawtooth modulation fully corrects the Phase-mismatch, exhibiting conversion equal to conventional Phase Matching, while smoothened, approximate sawtooth structures are more efficient than sinusoidal or square GAPM modulations that were previously studied. As an example, we demonstrate numerically optically-induced sawtooth GAPM for high harmonic generation. Sawtooth GAPM is the most efficient method for increasing the conversion efficiency of high harmonic generation through quasi-Phase-Matching, with an ultimate efficiency that closely matches the ideal Phase-Matching case.
-
Sawtooth grating-assisted-Phase-Matching
Conference on Lasers and Electro-Optics International Quantum Electronics Conference, 2009Co-Authors: Pavel Sidorenko, Margaret M Murnane, Alon Bahabad, Henry C. Kapteyn, Tenio Popmintchev, Oren CohenAbstract:A quasi-Phase-Matching method where the modulation has a sawtooth profile and the Phase-mismatch is almost fully corrected is suggested. Schemes for implementing sawtooth grating-assisted-Phase-Matching in low-order as well as high-order harmonic generation are proposed.
-
Quasi-periodic and random quasi-Phase Matching of high harmonic generation
Optics Letters, 2008Co-Authors: Alon Bahabad, Margaret M Murnane, Oren Cohen, Henry C. KapteynAbstract:Quasi-Phase Matching schemes employing quasi-periodic or random spatial modulations, previously applied to perturbative nonlinear optics, are demonstrated theoretically for the extreme nonlinear optical process of high harmonic generation. We show that quasi-periodic quasi-Phase Matching of high harmonic generation can be used for simultaneous enhancement of arbitrarily chosen spectral regions. We also demonstrate enhancement of a single extremely wide bandwidth using random quasi-Phase Matching.
-
All-Optical Quasi-Phase Matching in Extreme Nonlinear Optics
Optics and Photonics News, 2007Co-Authors: Amy L. Lytle, Margaret M Murnane, Oren Cohen, Xiaoshi Zhang, Henry C. KapteynAbstract:Phase Matching is a necessity, but what happens in the extreme? Can we use the nonlinear processes to create the necessary Phase Matching?
-
Grating-assisted Phase Matching in extreme nonlinear optics
2007 Conference on Lasers and Electro-Optics (CLEO), 2007Co-Authors: Oren Cohen, Henry C. Kapteyn, Tenio Popmintchev, Amy L. Lytle, Xiaoshi Zhang, Margaret M MurnaneAbstract:We propose a new technique for Phase-Matching frequency upconversion into the X-ray region. High harmonic generation in the presence of a weak counter-propagating quasi-CW beam is equivalent to low-order harmonic generation via grating-assisted Phase-Matching.
Tenio Popmintchev - One of the best experts on this subject based on the ideXlab platform.
-
Helicity-selective Phase-Matching and quasi-Phase Matching of circularly polarized high-order harmonics: towards chiral attosecond pulses
Journal of Physics B: Atomic Molecular and Optical Physics, 2016Co-Authors: Ofer Kfir, Patrik Grychtol, Emrah Turgut, Ronny Knut, Dmitriy Zusin, Avner Fleischer, Eliyahu Bordo, Tingting Fan, Dimitar Popmintchev, Tenio PopmintchevAbstract:Author(s): Kfir, O; Grychtol, P; Turgut, E; Knut, R; Zusin, D; Fleischer, A; Bordo, E; Fan, T; Popmintchev, D; Popmintchev, T; Kapteyn, H; Murnane, M; Cohen, O | Abstract: © 2016 IOP Publishing Ltd. Phase Matching of circularly polarized high-order harmonics driven by counter-rotating bi-chromatic lasers was recently predicted theoretically and demonstrated experimentally. In that work, Phase Matching was analyzed by assuming that the total energy, spin angular momentum and linear momentum of the photons participating in the process are conserved. Here we propose a new perspective on Phase Matching of circularly polarized high harmonics. We derive an extended Phase Matching condition by requiring a new propagation Matching condition between the classical vectorial bi-chromatic laser pump and harmonics fields. This allows us to include the influence of the laser pulse envelopes on Phase Matching. We find that the helicity dependent Phase Matching facilitates generation of high harmonics beams with a high degree of chirality. Indeed, we present an experimentally measured chiral spectrum that can support a train of attosecond pulses with a high degree of circular polarization. Moreover, while the degree of circularity of the most intense pulse approaches unity, all other pulses exhibit reduced circularity. This feature suggests the possibility of using a train of attosecond pulses as an isolated attosecond probe for chiral-sensitive experiments.
-
Sawtooth grating-assisted Phase-Matching.
Optics express, 2010Co-Authors: Pavel Sidorenko, Margaret M Murnane, Alon Bahabad, Henry C. Kapteyn, Tenio Popmintchev, Maxim Kozlov, Oren CohenAbstract:We show that a sawtooth Phase-modulation is the optimal profile for grating assisted Phase Matching (GAPM). Perfect (sharp) sawtooth modulation fully corrects the Phase-mismatch, exhibiting conversion equal to conventional Phase Matching, while smoothened, approximate sawtooth structures are more efficient than sinusoidal or square GAPM modulations that were previously studied. As an example, we demonstrate numerically optically-induced sawtooth GAPM for high harmonic generation. Sawtooth GAPM is the most efficient method for increasing the conversion efficiency of high harmonic generation through quasi-Phase-Matching, with an ultimate efficiency that closely matches the ideal Phase-Matching case.
-
Sawtooth grating-assisted-Phase-Matching
Conference on Lasers and Electro-Optics International Quantum Electronics Conference, 2009Co-Authors: Pavel Sidorenko, Margaret M Murnane, Alon Bahabad, Henry C. Kapteyn, Tenio Popmintchev, Oren CohenAbstract:A quasi-Phase-Matching method where the modulation has a sawtooth profile and the Phase-mismatch is almost fully corrected is suggested. Schemes for implementing sawtooth grating-assisted-Phase-Matching in low-order as well as high-order harmonic generation are proposed.
-
Grating-assisted Phase Matching in extreme nonlinear optics
2007 Conference on Lasers and Electro-Optics (CLEO), 2007Co-Authors: Oren Cohen, Henry C. Kapteyn, Tenio Popmintchev, Amy L. Lytle, Xiaoshi Zhang, Margaret M MurnaneAbstract:We propose a new technique for Phase-Matching frequency upconversion into the X-ray region. High harmonic generation in the presence of a weak counter-propagating quasi-CW beam is equivalent to low-order harmonic generation via grating-assisted Phase-Matching.
-
Phase Matching and Quasi-Phase Matching of Extreme High-Order Harmonic Generation
Springer Series in Chemical Physics, 2006Co-Authors: Tenio Popmintchev, Margaret M Murnane, Oren Cohen, Ming-chang Chen, Henry C. KapteynAbstract:We present new schemes for Phase Matching and quasi-Phase Matching extreme high-order harmonic generation. Using longer wavelength driving light at 1.3 im, we extend full Phase Matching of high harmonic generation in argon and neon to 100 and 200 eV respectively, well beyond the Phase-Matching limit for 0.8 im. Also, we show that multiple weak quasi-CW waves can induce Phase modulated structures in the high-harmonic generation process that can be used for highly efficient quasi-Phase Matching.
Alon Bahabad - One of the best experts on this subject based on the ideXlab platform.
-
Spatiotemporal quasi Phase Matching
CLEO: 2011 - Laser Science to Photonic Applications, 2011Co-Authors: Alon BahabadAbstract:We present a temporal extension of quasi-Phase-Matching of a nonlinear optical process. This allows conserving both momentum and energy over macroscopic length and time scales. This treatment is relevant for any dynamic quasi-Phase-Matching scheme.
-
Sawtooth grating-assisted Phase-Matching.
Optics express, 2010Co-Authors: Pavel Sidorenko, Margaret M Murnane, Alon Bahabad, Henry C. Kapteyn, Tenio Popmintchev, Maxim Kozlov, Oren CohenAbstract:We show that a sawtooth Phase-modulation is the optimal profile for grating assisted Phase Matching (GAPM). Perfect (sharp) sawtooth modulation fully corrects the Phase-mismatch, exhibiting conversion equal to conventional Phase Matching, while smoothened, approximate sawtooth structures are more efficient than sinusoidal or square GAPM modulations that were previously studied. As an example, we demonstrate numerically optically-induced sawtooth GAPM for high harmonic generation. Sawtooth GAPM is the most efficient method for increasing the conversion efficiency of high harmonic generation through quasi-Phase-Matching, with an ultimate efficiency that closely matches the ideal Phase-Matching case.
-
Generalized spatiotemporal quasi Phase Matching
Conference on Lasers and Electro-Optics 2010, 2010Co-Authors: Alon Bahabad, Margaret M Murnane, Henry C. KapteynAbstract:We develop a description of nonlinear optics where quasi-Phase-Matching of both momentum and energy mismatch can be implemented by employing both spatial and temporal modulations. This generalized quasi-Phase-Matching technique could allow unique applications.
-
Sawtooth grating-assisted-Phase-Matching
Conference on Lasers and Electro-Optics International Quantum Electronics Conference, 2009Co-Authors: Pavel Sidorenko, Margaret M Murnane, Alon Bahabad, Henry C. Kapteyn, Tenio Popmintchev, Oren CohenAbstract:A quasi-Phase-Matching method where the modulation has a sawtooth profile and the Phase-mismatch is almost fully corrected is suggested. Schemes for implementing sawtooth grating-assisted-Phase-Matching in low-order as well as high-order harmonic generation are proposed.
-
Quasi-periodic and random quasi-Phase Matching of high harmonic generation
Optics Letters, 2008Co-Authors: Alon Bahabad, Margaret M Murnane, Oren Cohen, Henry C. KapteynAbstract:Quasi-Phase Matching schemes employing quasi-periodic or random spatial modulations, previously applied to perturbative nonlinear optics, are demonstrated theoretically for the extreme nonlinear optical process of high harmonic generation. We show that quasi-periodic quasi-Phase Matching of high harmonic generation can be used for simultaneous enhancement of arbitrarily chosen spectral regions. We also demonstrate enhancement of a single extremely wide bandwidth using random quasi-Phase Matching.