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公开(公告)号：US20210313709A1
公开(公告)日：2021-10-07
申请号：US16841871
申请日：2020-04-07
发明人： Tal Ellenbogen , Shay Keren-Zur
IPC分类号： H01Q21/12 , G01N21/3581 , G01J3/433
摘要： Apparatus for generating THz (terahertz) radiation, the apparatus comprising: a substrate; a planar array of asymmetric point antennas formed on the substrate and excitable by a pump pulse of radiation to radiate THz radiation the point antennas having characteristic dimensions substantially smaller than wavelengths of the radiated THz; wherein the array comprises point antennas aligned in different directions.
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公开(公告)号：US11888233B2
公开(公告)日：2024-01-30
申请号：US16841871
申请日：2020-04-07
发明人： Tal Ellenbogen , Shay Keren-Zur
IPC分类号： H01Q21/12 , G01J3/433 , G01N21/3581
CPC分类号： H01Q21/12 , G01J3/4338 , G01N21/3581
摘要： Apparatus for generating THz (terahertz) radiation, the apparatus comprising: a substrate; a planar array of asymmetric point antennas formed on the substrate and excitable by a pump pulse of radiation to radiate THz radiation the point antennas having characteristic dimensions substantially smaller than wavelengths of the radiated THz; wherein the array comprises point antennas aligned in different directions.
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公开(公告)号：US10310287B2
公开(公告)日：2019-06-04
申请号：US15032418
申请日：2014-10-28
发明人： Tal Ellenbogen , Omri Eisenbach , Ori Avayu , Ran Ditcovski
摘要： An array of optical resonators comprises at least a first type of optical resonators each having a resonant response to an optical field at a first wavelength, and a second type of optical resonators each having a resonant response to an optical field at a second wavelength, being different from the first wavelength. The resonant responses can be selected to reduce chromatic aberrations, or to shape a profile of a light beam, or to selectively switch a near field beam.
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公开(公告)号：US20230185116A1
公开(公告)日：2023-06-15
申请号：US17925027
申请日：2021-05-14
发明人： Tal Ellenbogen , Guixin Li
CPC分类号： G02F1/0136 , H01Q9/02 , G02F2203/13
摘要： Apparatus for generating THz (teraftertz) radiation, the apparatus comprising: a substrate; a planar array of subwave-length antennas formed on the substrate having rotational symmetry, Cn, of order “n” greater than or equal to 3 and rotational symmetry cycle 2π/η, which are excitable by near infrared (NIR)_pump radiation to radiate THz radiation having wavelengths that are substantially larger than characteristic dimensions of the subwavelength antenna; wherein the array comprises a plurality of sections each comprising plurality of subwavelength antennas exhibiting a spatial pattern different from that of an adjacent section of the plurality of sections.
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