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公开(公告)号：US20190079321A1
公开(公告)日：2019-03-14
申请号：US16124948
申请日：2018-09-07
CPC分类号： G02F1/0136 , G02F1/0147 , G02F1/0551 , G02F1/0555 , G02F2202/101 , G02F2202/102 , G02F2202/30
摘要： The optical response of a metasurface is controlled by actuating it via an electrical or magnetic field, temperature control, optical pumping or electromechanical actuation. The metasurface will therefore control the polarization of the incident light. The metasurface comprises an array of patch antennas. The patch antennas are in the form of asymmetrical elements, including rotated rods, cross-shapes, V-shapes, and L-shapes.
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2.发明申请公开(公告)号：US20190131491A1
公开(公告)日：2019-05-02
申请号：US16175113
申请日：2018-10-30
发明人： Duhyun LEE , Ruzan SOKHOYAN , Yu-Jung LU , Ghazaleh KAFAIE SHIRMANESH , Harry A. ATWATER , Ragip A. PALA , Chan-Wook BAIK
摘要： Provided are light emission devices including an output coupler and optical apparatuses having the same. The light emission device may include a QD layer containing quantum dots and a nano-antenna structure including an output coupler configured to control an output characteristic of light emitted from the QD layer. The output coupler may be configured to output an emission wavelength of the QD layer. The nano-antenna structure may include one of a metallic antenna, a dielectric antenna, and a slit-containing structure, or may have a multi-patch antenna structure or a fishbone antenna structure.
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公开(公告)号：US20180292681A1
公开(公告)日：2018-10-11
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
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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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：US20190033682A1
公开(公告)日：2019-01-31
申请号：US15881689
申请日：2018-01-26
IPC分类号： G02F1/29
摘要： An array of unit cells allows beam steering of an incident electromagnetic wave. Each unit cell has a back reflector, a conductive oxide between gate dielectrics, and an antenna. Voltage bias applied to different layers enables the accumulation or depletion of charges at the top and bottom interfaces of the conductive oxide. The charge accumulation and depletion regions control the refractive index of the material, enabling control of the reflected electromagnetic wave.
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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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