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公开(公告)号:US10520758B2
公开(公告)日:2019-12-31
申请号:US16002473
申请日:2018-06-07
发明人: Seunghoon Han , Ruzan Sokhoyan , Harry Atwater , Ghazaleh Kafaie , Ragip Pala , Yu-Jung Lu , Ho Wai Lee , Yao-Wei Huang , Krishnan Thyagarajan
摘要: An optical modulating device includes a permittivity change layer having a variable permittivity, a dielectric layer disposed on the permittivity change layer, a nanoantenna disposed on the dielectric layer, and a light-emitting structure disposed adjacent to the permittivity change layer.
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公开(公告)号:US11204514B2
公开(公告)日:2021-12-21
申请号:US16156628
申请日:2018-10-10
发明人: Duhyun Lee , Ruzan Sokhoyan , Yu-Jung Lu , Ghazaleh Kafaie Shirmanesh , Harry Atwater , Ragip Pala , Chanwook Baik
IPC分类号: G02F1/03 , G02F1/017 , G02F1/13357 , G02F1/015
摘要: Provided is a quantum dot (QD) light modulator and an apparatus including the QD light modulator. The QD light modulator may include a QD-containing layer including QDs having light-emission characteristics, a refractive index change layer arranged adjacent to the QD-containing layer, and a reflector arranged facing the QD-containing layer. The refractive index change layer may include a carrier density change area in which a carrier density changes, and the carrier density change area may be arranged adjacent to the QD-containing layer. The light-emission characteristics of the QD-containing layer may be modulated according to a change in a property of the refractive index change layer. The QD light modulator may further include a nano-antenna structure arranged on the QD-containing layer.
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公开(公告)号:US11035548B2
公开(公告)日:2021-06-15
申请号:US16656040
申请日:2019-10-17
发明人: Seunghoon Han , Ali Naqavi , Harry Atwater
IPC分类号: G06T7/521 , F21V5/00 , G01B11/25 , G02B1/00 , G02B5/18 , G02B27/10 , G06T7/246 , G06K9/00 , G06K9/62
摘要: A structured light generator includes a light source configured to emit light, and a first meta optical device including a first metasurface including nanostructures having sub-wavelength dimensions that are less than a wavelength of the light emitted from the light source, the first metasurface being configured to form a distribution of light rays from the light emitted from the light source to thereby radiate structured light.
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公开(公告)号:US20200051263A1
公开(公告)日:2020-02-13
申请号:US16656040
申请日:2019-10-17
发明人: Seunghoon HAN , Ali Naqavi , Harry Atwater
IPC分类号: G06T7/521 , G01B11/25 , G02B1/00 , G02B5/18 , G02B27/10 , G06T7/246 , F21V5/00 , G06K9/00 , G06K9/62
摘要: A structured light generator includes a light source configured to emit light, and a first meta optical device including a first metasurface including nanostructures having sub-wavelength dimensions that are less than a wavelength of the light emitted from the light source, the first metasurface being configured to form a distribution of light rays from the light emitted from the light source to thereby radiate structured light.
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公开(公告)号:US09817250B2
公开(公告)日:2017-11-14
申请号:US15131431
申请日:2016-04-18
CPC分类号: G02F1/015 , B82Y20/00 , G02B5/008 , G02F1/0102 , G02F1/0121 , G02F1/19 , G02F2001/0151 , G02F2203/10 , Y10S977/932
摘要: An optical modulator includes a plurality of nanostructures, each nanostructure of the plurality of nanostructures having a refractive index that is variable; a first insulation layer having a refractive index that is less than the individual refractive indexes of the plurality of nanostructures and surrounding the plurality of nanostructures; and a refractive index changer configured to change the refractive indexes of the plurality of nanostructures.
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公开(公告)号:US11513219B2
公开(公告)日:2022-11-29
申请号:US16884850
申请日:2020-05-27
发明人: Duhyun Lee , Muhammad Alam , Harry Atwater , Ragip Pala , Byunghoon Na , Seunghoon Han
摘要: Provided are an optical modulating device and a system including the optical modulating device. The optical modulating device includes a substrate, and a phase modulator formed on the substrate and including a Fabry-Perot cavity. The Fabry-Perot cavity of the phase modulator includes a first reflective layer, a second reflective layer, and a tunable core formed between the first reflective layer and the second reflective layer, wherein the tunable core is formed of a semiconductor material and is configured to modulate a phase of light corresponding to modulation of a refractive index of the tunable core according to electrical control.
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公开(公告)号:US10402993B2
公开(公告)日:2019-09-03
申请号:US16040155
申请日:2018-07-19
发明人: Seunghoon Han , Ali Naqavi , Harry Atwater
IPC分类号: G02B27/10 , G06T7/521 , G01B11/25 , G02B1/00 , G02B5/18 , G06T7/246 , F21V5/00 , G06K9/00 , G06K9/62
摘要: A structured light generator includes a light source configured to emit light, and a first meta optical device including a first metasurface including nanostructures having sub-wavelength dimensions that are less than a wavelength of the light emitted from the light source, the first metasurface being configured to form a distribution of light rays from the light emitted from the light source to thereby radiate structured light.
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公开(公告)号:US11108213B2
公开(公告)日:2021-08-31
申请号:US16804442
申请日:2020-02-28
发明人: Duhyun Lee , Muhammad Alam , Ghazaleh Kafaie Shirmanesh , Harry Atwater , Pin Chieh Wu , Ragip Pala
摘要: A light modulation element according to example embodiments includes a substrate; a first lower DBR layer on the substrate including a first material layer alternately stacked with a second material layer having a different refractive index from the first material layer; a second lower DBR layer on the first lower DBR layer with a surface area less than the first lower DBR layer and including a third material layer alternately stacked with a fourth material layer having a different refractive index from the third material layer; an active layer on the second lower DBR layer, including a semiconductor material having a multi-quantum well structure and having a refractive index that varies according to an applied voltage; and an upper DBR layer on the active layer including a fifth material layer alternately stacked with a sixth material layer having a different refractive index from the fifth material layer.
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公开(公告)号:US10444355B2
公开(公告)日:2019-10-15
申请号:US15866998
申请日:2018-01-10
发明人: Ragip Pala , Harry Atwater , Muhammad Alam , Duhyun Lee , Byunghoon Na , Seunghoon Han
摘要: Provided are an optical modulating device and a system employing the same. The optical modulating device includes a phase modulator including a meta surface including a nanoantenna configured to couple light incident on the phase modulator, and including a quantum well layer having a multi-quantum well and configured to modulate a phase of light by modulating a refractive index according to an electrical control, and a reflective layer provided at on the phase modulator opposite to a side of the meta surface of the phase modulator and configured to resonate light coupled through the nanoantenna.
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公开(公告)号:US10012851B2
公开(公告)日:2018-07-03
申请号:US15214919
申请日:2016-07-20
发明人: Seunghoon Han , Ruzan Sokhoyan , Harry Atwater , Ghazaleh Kafaie , Ragip Pala , Yu-Jung Lu , Ho Wai Lee , Yao-Wei Huang , Krishnan Thyagarajan
CPC分类号: G02F1/0121 , G02B5/008 , G02F1/0102 , G02F1/0147 , H01L33/06 , H01L33/44
摘要: An optical modulating device includes a permittivity change layer having a variable permittivity, a dielectric layer disposed on the permittivity change layer, a nanoantenna disposed on the dielectric layer, and a light-emitting structure disposed adjacent to the permittivity change layer.
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