The Experts below are selected from a list of 282 Experts worldwide ranked by ideXlab platform
Mikhail A. Belkin - One of the best experts on this subject based on the ideXlab platform.
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giant Nonlinear Response from plasmonic metasurfaces coupled to intersubband transitions
Nature, 2014Co-Authors: Jongwon Lee, Mykhailo Tymchenko, Frederic Demmerle, Pai-yen Chen, Christos Argyropoulos, Gerhard Boehm, Markus-christian Amann, Andrea Alu, Mikhail A. BelkinAbstract:Multiple-quantum-well semiconductors can provide one of the largest known Nonlinear material Responses, which is, however, geometrically limited to light beams polarized perpendicular to the semiconductor layers; by coupling a plasmonic metasurface to the semiconductor heterostructure, this limitation can be lifted, opening a new path towards ultrathin planarized components with large Nonlinear Response. Multiple-quantum-well semiconductor heterostructures have been engineered to generate useful Nonlinear optical Responses that far exceed those of traditional Nonlinear optical materials. But their range of applicability is geometrically limited as they require that the incident light be polarized perpendicular to the semiconductor layers. Jongwon Lee et al. now show that, by coupling a plasmonic metasurface to the semiconductor heterostructure, this geometrical limitation can be removed, thereby lifting the orientation restrictions on the use of these Nonlinear optical elements. Intersubband transitions in n-doped multi-quantum-well semiconductor heterostructures make it possible to engineer one of the largest known Nonlinear optical Responses in condensed matter systems—but this Nonlinear Response is limited to light with electric field polarized normal to the semiconductor layers1,2,3,4,5,6,7. In a different context, plasmonic metasurfaces (thin conductor–dielectric composite materials) have been proposed as a way of strongly enhancing light–matter interaction and realizing ultrathin planarized devices with exotic wave properties8,9,10,11. Here we propose and experimentally realize metasurfaces with a record-high Nonlinear Response based on the coupling of electromagnetic modes in plasmonic metasurfaces with quantum-engineered electronic intersubband transitions in semiconductor heterostructures. We show that it is possible to engineer almost any element of the Nonlinear susceptibility tensor of these structures, and we experimentally verify this concept by realizing a 400-nm-thick metasurface with Nonlinear susceptibility of greater than 5 × 104 picometres per volt for second harmonic generation at a wavelength of about 8 micrometres under normal incidence. This susceptibility is many orders of magnitude larger than any second-order Nonlinear Response in optical metasurfaces measured so far12,13,14,15. The proposed structures can act as ultrathin highly Nonlinear optical elements that enable efficient frequency mixing with relaxed phase-matching conditions, ideal for realizing broadband frequency up- and down-conversions, phase conjugation and all-optical control and tunability over a surface.
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Giant Nonlinear Response from plasmonic metasurfaces coupled to intersubband transitions
Nature, 2014Co-Authors: Jongwon Lee, Mykhailo Tymchenko, Frederic Demmerle, Pai-yen Chen, Christos Argyropoulos, Gerhard Boehm, Markus-christian Amann, Andrea Alu, Feng Lu, Mikhail A. BelkinAbstract:Intersubband transitions in n-doped multi-quantum-well semiconductor heterostructures make it possible to engineer one of the largest known Nonlinear optical Responses in condensed matter systems--but this Nonlinear Response is limited to light with electric field polarized normal to the semiconductor layers. In a different context, plasmonic metasurfaces (thin conductor-dielectric composite materials) have been proposed as a way of strongly enhancing light-matter interaction and realizing ultrathin planarized devices with exotic wave properties. Here we propose and experimentally realize metasurfaces with a record-high Nonlinear Response based on the coupling of electromagnetic modes in plasmonic metasurfaces with quantum-engineered electronic intersubband transitions in semiconductor heterostructures. We show that it is possible to engineer almost any element of the Nonlinear susceptibility tensor of these structures, and we experimentally verify this concept by realizing a 400-nm-thick metasurface with Nonlinear susceptibility of greater than 5 × 10(4) picometres per volt for second harmonic generation at a wavelength of about 8 micrometres under normal incidence. This susceptibility is many orders of magnitude larger than any second-order Nonlinear Response in optical metasurfaces measured so far. The proposed structures can act as ultrathin highly Nonlinear optical elements that enable efficient frequency mixing with relaxed phase-matching conditions, ideal for realizing broadband frequency up- and down-conversions, phase conjugation and all-optical control and tunability over a surface.
Jongwon Lee - One of the best experts on this subject based on the ideXlab platform.
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giant Nonlinear Response from plasmonic metasurfaces coupled to intersubband transitions
Nature, 2014Co-Authors: Jongwon Lee, Mykhailo Tymchenko, Frederic Demmerle, Pai-yen Chen, Christos Argyropoulos, Gerhard Boehm, Markus-christian Amann, Andrea Alu, Mikhail A. BelkinAbstract:Multiple-quantum-well semiconductors can provide one of the largest known Nonlinear material Responses, which is, however, geometrically limited to light beams polarized perpendicular to the semiconductor layers; by coupling a plasmonic metasurface to the semiconductor heterostructure, this limitation can be lifted, opening a new path towards ultrathin planarized components with large Nonlinear Response. Multiple-quantum-well semiconductor heterostructures have been engineered to generate useful Nonlinear optical Responses that far exceed those of traditional Nonlinear optical materials. But their range of applicability is geometrically limited as they require that the incident light be polarized perpendicular to the semiconductor layers. Jongwon Lee et al. now show that, by coupling a plasmonic metasurface to the semiconductor heterostructure, this geometrical limitation can be removed, thereby lifting the orientation restrictions on the use of these Nonlinear optical elements. Intersubband transitions in n-doped multi-quantum-well semiconductor heterostructures make it possible to engineer one of the largest known Nonlinear optical Responses in condensed matter systems—but this Nonlinear Response is limited to light with electric field polarized normal to the semiconductor layers1,2,3,4,5,6,7. In a different context, plasmonic metasurfaces (thin conductor–dielectric composite materials) have been proposed as a way of strongly enhancing light–matter interaction and realizing ultrathin planarized devices with exotic wave properties8,9,10,11. Here we propose and experimentally realize metasurfaces with a record-high Nonlinear Response based on the coupling of electromagnetic modes in plasmonic metasurfaces with quantum-engineered electronic intersubband transitions in semiconductor heterostructures. We show that it is possible to engineer almost any element of the Nonlinear susceptibility tensor of these structures, and we experimentally verify this concept by realizing a 400-nm-thick metasurface with Nonlinear susceptibility of greater than 5 × 104 picometres per volt for second harmonic generation at a wavelength of about 8 micrometres under normal incidence. This susceptibility is many orders of magnitude larger than any second-order Nonlinear Response in optical metasurfaces measured so far12,13,14,15. The proposed structures can act as ultrathin highly Nonlinear optical elements that enable efficient frequency mixing with relaxed phase-matching conditions, ideal for realizing broadband frequency up- and down-conversions, phase conjugation and all-optical control and tunability over a surface.
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Giant Nonlinear Response from plasmonic metasurfaces coupled to intersubband transitions
Nature, 2014Co-Authors: Jongwon Lee, Mykhailo Tymchenko, Frederic Demmerle, Pai-yen Chen, Christos Argyropoulos, Gerhard Boehm, Markus-christian Amann, Andrea Alu, Feng Lu, Mikhail A. BelkinAbstract:Intersubband transitions in n-doped multi-quantum-well semiconductor heterostructures make it possible to engineer one of the largest known Nonlinear optical Responses in condensed matter systems--but this Nonlinear Response is limited to light with electric field polarized normal to the semiconductor layers. In a different context, plasmonic metasurfaces (thin conductor-dielectric composite materials) have been proposed as a way of strongly enhancing light-matter interaction and realizing ultrathin planarized devices with exotic wave properties. Here we propose and experimentally realize metasurfaces with a record-high Nonlinear Response based on the coupling of electromagnetic modes in plasmonic metasurfaces with quantum-engineered electronic intersubband transitions in semiconductor heterostructures. We show that it is possible to engineer almost any element of the Nonlinear susceptibility tensor of these structures, and we experimentally verify this concept by realizing a 400-nm-thick metasurface with Nonlinear susceptibility of greater than 5 × 10(4) picometres per volt for second harmonic generation at a wavelength of about 8 micrometres under normal incidence. This susceptibility is many orders of magnitude larger than any second-order Nonlinear Response in optical metasurfaces measured so far. The proposed structures can act as ultrathin highly Nonlinear optical elements that enable efficient frequency mixing with relaxed phase-matching conditions, ideal for realizing broadband frequency up- and down-conversions, phase conjugation and all-optical control and tunability over a surface.
Minhaeng Cho - One of the best experts on this subject based on the ideXlab platform.
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Nonlinear Response functions for the three-dimensional spectroscopies
The Journal of Chemical Physics, 2001Co-Authors: Minhaeng ChoAbstract:Theoretical descriptions of the three-dimensional spectroscopies are presented in this paper by calculating the associated Nonlinear Response function. Previously, the harmonic approximation with the Wick’s theorem was used to obtain theoretical expression of the three-dimensional vibrational Response function, by treating the mechanical and electrical anharmonicities perturbatively. However, the bath-induced memory effect and anharmonicity-induced frequency shift were not correctly taken into account by the previous theory. By incorporating the system–bath interaction properly, the general Nonlinear Response functions for the three-dimensional vibrational, vibrational-electronic, or electronic spectroscopies are obtained and discussed in detail. By using the resultant Nonlinear Response function, two-color vibrational photon echo, three-dimensional sum- and difference-frequency generation spectroscopies, and two-color infrared pump–probe spectroscopy are theoretically proposed.
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Effects of temperature on the Nonlinear Response function for two-dimensional vibrational spectroscopy
The Journal of Chemical Physics, 2001Co-Authors: Jaeyoung Sung, Robert J. Silbey, Minhaeng ChoAbstract:We investigate the effects of temperature on the Nonlinear Response functions associated with various two-dimensional vibrational spectroscopies. It turns out that the system–bath interaction plays an important role in determining the nature of the temperature-dependencies of the Nonlinear Response functions and spectra of the two-dimensional vibrational spectroscopy. For a model Hamiltonian, we present exact quantum-mechanical expressions for the Nonlinear Response functions of two-dimensional vibrational spectroscopies in both the time and frequency domains.
Mykhailo Tymchenko - One of the best experts on this subject based on the ideXlab platform.
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giant Nonlinear Response from plasmonic metasurfaces coupled to intersubband transitions
Nature, 2014Co-Authors: Jongwon Lee, Mykhailo Tymchenko, Frederic Demmerle, Pai-yen Chen, Christos Argyropoulos, Gerhard Boehm, Markus-christian Amann, Andrea Alu, Mikhail A. BelkinAbstract:Multiple-quantum-well semiconductors can provide one of the largest known Nonlinear material Responses, which is, however, geometrically limited to light beams polarized perpendicular to the semiconductor layers; by coupling a plasmonic metasurface to the semiconductor heterostructure, this limitation can be lifted, opening a new path towards ultrathin planarized components with large Nonlinear Response. Multiple-quantum-well semiconductor heterostructures have been engineered to generate useful Nonlinear optical Responses that far exceed those of traditional Nonlinear optical materials. But their range of applicability is geometrically limited as they require that the incident light be polarized perpendicular to the semiconductor layers. Jongwon Lee et al. now show that, by coupling a plasmonic metasurface to the semiconductor heterostructure, this geometrical limitation can be removed, thereby lifting the orientation restrictions on the use of these Nonlinear optical elements. Intersubband transitions in n-doped multi-quantum-well semiconductor heterostructures make it possible to engineer one of the largest known Nonlinear optical Responses in condensed matter systems—but this Nonlinear Response is limited to light with electric field polarized normal to the semiconductor layers1,2,3,4,5,6,7. In a different context, plasmonic metasurfaces (thin conductor–dielectric composite materials) have been proposed as a way of strongly enhancing light–matter interaction and realizing ultrathin planarized devices with exotic wave properties8,9,10,11. Here we propose and experimentally realize metasurfaces with a record-high Nonlinear Response based on the coupling of electromagnetic modes in plasmonic metasurfaces with quantum-engineered electronic intersubband transitions in semiconductor heterostructures. We show that it is possible to engineer almost any element of the Nonlinear susceptibility tensor of these structures, and we experimentally verify this concept by realizing a 400-nm-thick metasurface with Nonlinear susceptibility of greater than 5 × 104 picometres per volt for second harmonic generation at a wavelength of about 8 micrometres under normal incidence. This susceptibility is many orders of magnitude larger than any second-order Nonlinear Response in optical metasurfaces measured so far12,13,14,15. The proposed structures can act as ultrathin highly Nonlinear optical elements that enable efficient frequency mixing with relaxed phase-matching conditions, ideal for realizing broadband frequency up- and down-conversions, phase conjugation and all-optical control and tunability over a surface.
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Giant Nonlinear Response from plasmonic metasurfaces coupled to intersubband transitions
Nature, 2014Co-Authors: Jongwon Lee, Mykhailo Tymchenko, Frederic Demmerle, Pai-yen Chen, Christos Argyropoulos, Gerhard Boehm, Markus-christian Amann, Andrea Alu, Feng Lu, Mikhail A. BelkinAbstract:Intersubband transitions in n-doped multi-quantum-well semiconductor heterostructures make it possible to engineer one of the largest known Nonlinear optical Responses in condensed matter systems--but this Nonlinear Response is limited to light with electric field polarized normal to the semiconductor layers. In a different context, plasmonic metasurfaces (thin conductor-dielectric composite materials) have been proposed as a way of strongly enhancing light-matter interaction and realizing ultrathin planarized devices with exotic wave properties. Here we propose and experimentally realize metasurfaces with a record-high Nonlinear Response based on the coupling of electromagnetic modes in plasmonic metasurfaces with quantum-engineered electronic intersubband transitions in semiconductor heterostructures. We show that it is possible to engineer almost any element of the Nonlinear susceptibility tensor of these structures, and we experimentally verify this concept by realizing a 400-nm-thick metasurface with Nonlinear susceptibility of greater than 5 × 10(4) picometres per volt for second harmonic generation at a wavelength of about 8 micrometres under normal incidence. This susceptibility is many orders of magnitude larger than any second-order Nonlinear Response in optical metasurfaces measured so far. The proposed structures can act as ultrathin highly Nonlinear optical elements that enable efficient frequency mixing with relaxed phase-matching conditions, ideal for realizing broadband frequency up- and down-conversions, phase conjugation and all-optical control and tunability over a surface.
Andrea Alu - One of the best experts on this subject based on the ideXlab platform.
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giant Nonlinear Response from plasmonic metasurfaces coupled to intersubband transitions
Nature, 2014Co-Authors: Jongwon Lee, Mykhailo Tymchenko, Frederic Demmerle, Pai-yen Chen, Christos Argyropoulos, Gerhard Boehm, Markus-christian Amann, Andrea Alu, Mikhail A. BelkinAbstract:Multiple-quantum-well semiconductors can provide one of the largest known Nonlinear material Responses, which is, however, geometrically limited to light beams polarized perpendicular to the semiconductor layers; by coupling a plasmonic metasurface to the semiconductor heterostructure, this limitation can be lifted, opening a new path towards ultrathin planarized components with large Nonlinear Response. Multiple-quantum-well semiconductor heterostructures have been engineered to generate useful Nonlinear optical Responses that far exceed those of traditional Nonlinear optical materials. But their range of applicability is geometrically limited as they require that the incident light be polarized perpendicular to the semiconductor layers. Jongwon Lee et al. now show that, by coupling a plasmonic metasurface to the semiconductor heterostructure, this geometrical limitation can be removed, thereby lifting the orientation restrictions on the use of these Nonlinear optical elements. Intersubband transitions in n-doped multi-quantum-well semiconductor heterostructures make it possible to engineer one of the largest known Nonlinear optical Responses in condensed matter systems—but this Nonlinear Response is limited to light with electric field polarized normal to the semiconductor layers1,2,3,4,5,6,7. In a different context, plasmonic metasurfaces (thin conductor–dielectric composite materials) have been proposed as a way of strongly enhancing light–matter interaction and realizing ultrathin planarized devices with exotic wave properties8,9,10,11. Here we propose and experimentally realize metasurfaces with a record-high Nonlinear Response based on the coupling of electromagnetic modes in plasmonic metasurfaces with quantum-engineered electronic intersubband transitions in semiconductor heterostructures. We show that it is possible to engineer almost any element of the Nonlinear susceptibility tensor of these structures, and we experimentally verify this concept by realizing a 400-nm-thick metasurface with Nonlinear susceptibility of greater than 5 × 104 picometres per volt for second harmonic generation at a wavelength of about 8 micrometres under normal incidence. This susceptibility is many orders of magnitude larger than any second-order Nonlinear Response in optical metasurfaces measured so far12,13,14,15. The proposed structures can act as ultrathin highly Nonlinear optical elements that enable efficient frequency mixing with relaxed phase-matching conditions, ideal for realizing broadband frequency up- and down-conversions, phase conjugation and all-optical control and tunability over a surface.
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Giant Nonlinear Response from plasmonic metasurfaces coupled to intersubband transitions
Nature, 2014Co-Authors: Jongwon Lee, Mykhailo Tymchenko, Frederic Demmerle, Pai-yen Chen, Christos Argyropoulos, Gerhard Boehm, Markus-christian Amann, Andrea Alu, Feng Lu, Mikhail A. BelkinAbstract:Intersubband transitions in n-doped multi-quantum-well semiconductor heterostructures make it possible to engineer one of the largest known Nonlinear optical Responses in condensed matter systems--but this Nonlinear Response is limited to light with electric field polarized normal to the semiconductor layers. In a different context, plasmonic metasurfaces (thin conductor-dielectric composite materials) have been proposed as a way of strongly enhancing light-matter interaction and realizing ultrathin planarized devices with exotic wave properties. Here we propose and experimentally realize metasurfaces with a record-high Nonlinear Response based on the coupling of electromagnetic modes in plasmonic metasurfaces with quantum-engineered electronic intersubband transitions in semiconductor heterostructures. We show that it is possible to engineer almost any element of the Nonlinear susceptibility tensor of these structures, and we experimentally verify this concept by realizing a 400-nm-thick metasurface with Nonlinear susceptibility of greater than 5 × 10(4) picometres per volt for second harmonic generation at a wavelength of about 8 micrometres under normal incidence. This susceptibility is many orders of magnitude larger than any second-order Nonlinear Response in optical metasurfaces measured so far. The proposed structures can act as ultrathin highly Nonlinear optical elements that enable efficient frequency mixing with relaxed phase-matching conditions, ideal for realizing broadband frequency up- and down-conversions, phase conjugation and all-optical control and tunability over a surface.
