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公开(公告)号：US20190129206A1
公开(公告)日：2019-05-02
申请号：US16170573
申请日：2018-10-25
发明人： Duhyun LEE , Ruzan SOKHOYAN , Yu-Jung LU , Ghazaleh KAFAIE SHIRMANESH , Harry ATWATER , Ragip PALA , Chanwook BAIK
摘要： An optical modulating device may include a plurality of quantum dot (QD)-containing layers having QDs and a plurality of refractive index change layers. The QD-containing layers may be disposed between the refractive index change layers, respectively. The optical modulating device may be configured to modulate light-emission characteristics of the plurality of QD-containing layers. At least two of the QD-containing layers may have different central emission wavelengths. At least two of the plurality of refractive index change layers may include different materials or have different carrier densities.
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公开(公告)号：US20190107740A1
公开(公告)日：2019-04-11
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
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：US20170031183A1
公开(公告)日：2017-02-02
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 , 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.
摘要翻译： 光调制装置包括具有可变电容率的介电常数变化层，设置在介电常数变化层上的电介质层，设置在电介质层上的纳米天线，以及邻近于介电常数变化层设置的发光结构。
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公开(公告)号：US20200280174A1
公开(公告)日：2020-09-03
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：US20170045759A1
公开(公告)日：2017-02-16
申请号：US15233036
申请日：2016-08-10
CPC分类号： G02F1/0121 , G02B1/002 , G02F1/0018 , G02F1/0105 , G02F1/0136 , G02F2202/30 , G02F2203/10 , G11C13/047 , G11C13/048 , H01L29/786
摘要： A meta-structure and a tunable optical device including the same are provided. The meta-structure includes a plurality of metal layers spaced apart from one another, an active layer spaced apart from the plurality of metal layers and having a carrier concentration that is tuned according to an electric signal applied to the active layer and the plurality of metal layers, and a plurality of dielectric layers spaced apart from one another and each having one surface contacting a metal layer among the plurality of metal layers and another surface contacting the active layer.
摘要翻译： 提供了包括该元结构的元结构和可调谐光学器件。 间位结构包括彼此间隔开的多个金属层，与多个金属层间隔开的有源层，并且具有根据施加到有源层的电信号调整的载流子浓度和多个金属 层和彼此间隔开的多个电介质层，并且每个电介质层具有接触多个金属层中的金属层的一个表面和与活性层接触的另一表面。
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公开(公告)号：US20220197105A1
公开(公告)日：2022-06-23
申请号：US17356077
申请日：2021-06-23
发明人： Junghyun PARK , Meir GRAJOWER , Harry ATWATER , Ruzan SOHKOYAN , Prachi THUREJA
摘要： A light modulating device for modulating incident light in a given wavelength band is provided. The light modulating device may include: a first semiconductor layer; an active layer provided on the first semiconductor layer and having a multiple quantum well structure and a refractive index that is variable according to an electric field applied thereto, and a second semiconductor layer provided on the active layer and including a grating pattern in which a plurality of gratings extending in a first direction are repeatedly arranged in a second direction perpendicular to the first direction. The light modulating device may have high modulation efficiency owing to guided mode resonance by the grating pattern.
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公开(公告)号：US20200284904A1
公开(公告)日：2020-09-10
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：US20180322645A1
公开(公告)日：2018-11-08
申请号：US16040155
申请日：2018-07-19
发明人： Seunghoon HAN , Ali NAQAVI , Harry ATWATER
IPC分类号： G06T7/521 , G02B27/10 , G02B5/18 , G02B1/00 , G06K9/62 , G06K9/00 , F21V5/00 , G06T7/246 , G01B11/25
CPC分类号： G06T7/521 , F21V5/002 , G01B11/2513 , G02B1/002 , G02B5/1809 , G02B27/106 , G02B27/1093 , G02B2207/00 , G06K9/00201 , G06K9/6202 , G06T7/248 , G06T2207/10028
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：US20180196137A1
公开(公告)日：2018-07-12
申请号：US15866998
申请日：2018-01-10
发明人： Duhyun LEE , Ragip PALA , Harry ATWATER , Muhammad ALAM , Byunghoon NA , Seunghoon HAN
CPC分类号： G01S17/02 , G01S7/481 , G01S7/4817 , G02F1/01716 , G02F1/21 , G02F1/292 , G02F2001/0151 , G02F2202/30 , G02F2203/15 , G02F2203/50
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：US20230016681A1
公开(公告)日：2023-01-19
申请号：US17948026
申请日：2022-09-19
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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