The Experts below are selected from a list of 291 Experts worldwide ranked by ideXlab platform
Charles S. Adams - One of the best experts on this subject based on the ideXlab platform.
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a giant electro Optic Effect using polarizable dark states
Nature Physics, 2008Co-Authors: A. K. Mohapatra, Björn Butscher, Kevin J. Weatherill, Mark G. Bason, Charles S. AdamsAbstract:The electro-Optic Effect, where the refractive index of a medium is modified by an electric field, is of central importance in nonlinear Optics, laser technology, quantum Optics and Optical communications. In general, electro-Optic coefficients are very weak and a medium with a giant electro-Optic coefficient could have profound implications for precision electrometry and nonlinear Optics at the single-photon level. Here we propose and demonstrate a giant d.c. electro-Optic Effect on the basis of polarizable (Rydberg) dark states. When a medium is prepared in a dark state consisting of a superposition of ground and Rydberg energy levels, it becomes transparent and acquires a refractive index that is dependent on the energy of the highly polarizable Rydberg state. We demonstrate phase modulation of the light field in the Rydberg-dark-state medium and measure an electro-Optic coefficient that is more than six orders of magnitude larger than in usual Kerr media. Coupling of the Rydberg states of an ensemble of rubidium atoms gives rise to a d.c. Kerr Effect that is six orders of magnitude greater than in conventional Kerr media. Such phenomena could enable the development of high-precision electric field sensors and other nonlinear Optical devices.
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A giant electro-Optic Effect using polarizable dark states
Nature Physics, 2008Co-Authors: A. K. Mohapatra, Björn Butscher, Kevin J. Weatherill, Mark G. Bason, Charles S. AdamsAbstract:The electro-Optic Effect, where the refractive index of a medium is modified by an electric field, is of central importance in non-linear Optics, laser technology, quantum Optics and Optical communications. In general, electro-Optic coefficients are very weak and a medium with a giant electro-Optic coefficient would have profound implications for non-linear Optics, especially at the single photon level, enabling single photon entanglement and switching. Here we propose and demonstrate a giant electro-Optic Effect based on polarizable dark states. We demonstrate phase modulation of the light field in the dark state medium and measure an electro-Optic coefficient that is more than 12 orders of magnitude larger than in other gases. This enormous Kerr non-linearity also creates the potential for precision electrometry and photon entanglement.
Aihua Yang - One of the best experts on this subject based on the ideXlab platform.
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phase matching using the linear electro Optic Effect
Physical Review Letters, 2017Co-Authors: Jie Miao, Aihua YangAbstract:: Phase matching is a necessary condition for achieving high-efficiency Optical-frequency conversion. To date, practical means of accomplishing phase matching in homogeneous crystals remain limited, despite considerable efforts. Herein, we report a new class of methods aimed at achieving quasiperfect phase matching, based on controllable birefringence produced via the linear electro-Optic Effect, termed "voltage-tuning phase matching." The wave vectors of the induced polarization and the generated fields can be matched and maintained along the direction of propagation by introducing an external electric field. We analyze the validity and feasibility of this method theoretically and demonstrate it experimentally by applying the linear electro-Optic Effect and fourth-harmonic generation simultaneously in a partially deuterated KH_{2}PO_{4} crystal. Quasiperfect phase matching is achieved systematically over a temperature range of the initial phase-matching temperature ±2 °C. Moreover, this method can overcome the limitation of the birefringence in traditional technologies and provides new functionalities for conventional nonlinear materials as well as low-birefringence and isotropic materials. This technology may significantly impact the study of Optical-frequency conversion and has promise for a broad range of applications in nonlinear Optics.
A. K. Mohapatra - One of the best experts on this subject based on the ideXlab platform.
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a giant electro Optic Effect using polarizable dark states
Nature Physics, 2008Co-Authors: A. K. Mohapatra, Björn Butscher, Kevin J. Weatherill, Mark G. Bason, Charles S. AdamsAbstract:The electro-Optic Effect, where the refractive index of a medium is modified by an electric field, is of central importance in nonlinear Optics, laser technology, quantum Optics and Optical communications. In general, electro-Optic coefficients are very weak and a medium with a giant electro-Optic coefficient could have profound implications for precision electrometry and nonlinear Optics at the single-photon level. Here we propose and demonstrate a giant d.c. electro-Optic Effect on the basis of polarizable (Rydberg) dark states. When a medium is prepared in a dark state consisting of a superposition of ground and Rydberg energy levels, it becomes transparent and acquires a refractive index that is dependent on the energy of the highly polarizable Rydberg state. We demonstrate phase modulation of the light field in the Rydberg-dark-state medium and measure an electro-Optic coefficient that is more than six orders of magnitude larger than in usual Kerr media. Coupling of the Rydberg states of an ensemble of rubidium atoms gives rise to a d.c. Kerr Effect that is six orders of magnitude greater than in conventional Kerr media. Such phenomena could enable the development of high-precision electric field sensors and other nonlinear Optical devices.
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A giant electro-Optic Effect using polarizable dark states
Nature Physics, 2008Co-Authors: A. K. Mohapatra, Björn Butscher, Kevin J. Weatherill, Mark G. Bason, Charles S. AdamsAbstract:The electro-Optic Effect, where the refractive index of a medium is modified by an electric field, is of central importance in non-linear Optics, laser technology, quantum Optics and Optical communications. In general, electro-Optic coefficients are very weak and a medium with a giant electro-Optic coefficient would have profound implications for non-linear Optics, especially at the single photon level, enabling single photon entanglement and switching. Here we propose and demonstrate a giant electro-Optic Effect based on polarizable dark states. We demonstrate phase modulation of the light field in the dark state medium and measure an electro-Optic coefficient that is more than 12 orders of magnitude larger than in other gases. This enormous Kerr non-linearity also creates the potential for precision electrometry and photon entanglement.
Jie Miao - One of the best experts on this subject based on the ideXlab platform.
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phase matching using the linear electro Optic Effect
Physical Review Letters, 2017Co-Authors: Jie Miao, Aihua YangAbstract:: Phase matching is a necessary condition for achieving high-efficiency Optical-frequency conversion. To date, practical means of accomplishing phase matching in homogeneous crystals remain limited, despite considerable efforts. Herein, we report a new class of methods aimed at achieving quasiperfect phase matching, based on controllable birefringence produced via the linear electro-Optic Effect, termed "voltage-tuning phase matching." The wave vectors of the induced polarization and the generated fields can be matched and maintained along the direction of propagation by introducing an external electric field. We analyze the validity and feasibility of this method theoretically and demonstrate it experimentally by applying the linear electro-Optic Effect and fourth-harmonic generation simultaneously in a partially deuterated KH_{2}PO_{4} crystal. Quasiperfect phase matching is achieved systematically over a temperature range of the initial phase-matching temperature ±2 °C. Moreover, this method can overcome the limitation of the birefringence in traditional technologies and provides new functionalities for conventional nonlinear materials as well as low-birefringence and isotropic materials. This technology may significantly impact the study of Optical-frequency conversion and has promise for a broad range of applications in nonlinear Optics.
Björn Butscher - One of the best experts on this subject based on the ideXlab platform.
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a giant electro Optic Effect using polarizable dark states
Nature Physics, 2008Co-Authors: A. K. Mohapatra, Björn Butscher, Kevin J. Weatherill, Mark G. Bason, Charles S. AdamsAbstract:The electro-Optic Effect, where the refractive index of a medium is modified by an electric field, is of central importance in nonlinear Optics, laser technology, quantum Optics and Optical communications. In general, electro-Optic coefficients are very weak and a medium with a giant electro-Optic coefficient could have profound implications for precision electrometry and nonlinear Optics at the single-photon level. Here we propose and demonstrate a giant d.c. electro-Optic Effect on the basis of polarizable (Rydberg) dark states. When a medium is prepared in a dark state consisting of a superposition of ground and Rydberg energy levels, it becomes transparent and acquires a refractive index that is dependent on the energy of the highly polarizable Rydberg state. We demonstrate phase modulation of the light field in the Rydberg-dark-state medium and measure an electro-Optic coefficient that is more than six orders of magnitude larger than in usual Kerr media. Coupling of the Rydberg states of an ensemble of rubidium atoms gives rise to a d.c. Kerr Effect that is six orders of magnitude greater than in conventional Kerr media. Such phenomena could enable the development of high-precision electric field sensors and other nonlinear Optical devices.
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A giant electro-Optic Effect using polarizable dark states
Nature Physics, 2008Co-Authors: A. K. Mohapatra, Björn Butscher, Kevin J. Weatherill, Mark G. Bason, Charles S. AdamsAbstract:The electro-Optic Effect, where the refractive index of a medium is modified by an electric field, is of central importance in non-linear Optics, laser technology, quantum Optics and Optical communications. In general, electro-Optic coefficients are very weak and a medium with a giant electro-Optic coefficient would have profound implications for non-linear Optics, especially at the single photon level, enabling single photon entanglement and switching. Here we propose and demonstrate a giant electro-Optic Effect based on polarizable dark states. We demonstrate phase modulation of the light field in the dark state medium and measure an electro-Optic coefficient that is more than 12 orders of magnitude larger than in other gases. This enormous Kerr non-linearity also creates the potential for precision electrometry and photon entanglement.
