-
公开(公告)号：US10670782B2
公开(公告)日：2020-06-02
申请号：US15410735
申请日：2017-01-19
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Ehsan Arbabi , Amir Arbabi , Seyedeh Mahsa Kamali , Yu Horie , Andrei Faraon
Abstract: Metasurfaces comprise an array of pillars in a lattice. The dimensions of the pillars and the spacing are varied to obtain desired optical properties. The dispersionless metasurfaces can focus optical light over a broad wavelength range. Specific dispersion profiles for the metasurfaces can be designed. Gratings can be fabricated having similar properties as the array of pillars. Pillars in the metasurfaces can have different cross-section profiles.
-
2.发明授权公开(公告)号：US09482887B2
公开(公告)日：2016-11-01
申请号：US14814421
申请日：2015-07-30
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Yu Horie , Amir Arbabi , Andrei Faraon
CPC classification number: G02F1/017 , G02F1/0107 , G02F1/19 , G02F1/292 , G02F2001/0151 , G02F2001/0154 , G02F2201/307 , G02F2203/10 , G02F2203/12 , G02F2203/18
Abstract: Methods and systems for controlling the phase of electromagnetic waves are disclosed. A device can consist of a guided resonance grating layer, a spacer, and a reflector. A plurality of devices, arranged in a grid pattern, can control the phase of reflected electromagnetic phase, through refractive index control. Carrier injection, temperature control, and optical beams can be applied to control the refractive index.
Abstract translation: 公开了用于控制电磁波相位的方法和系统。 器件可以由引导谐振光栅层，间隔物和反射器组成。 以栅格图案布置的多个器件可以通过折射率控制来控制反射的电磁相位的相位。 可以应用载体注入，温度控制和光束来控制折射率。
-
公开(公告)号：US09915832B2
公开(公告)日：2018-03-13
申请号：US15282592
申请日：2016-09-30
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Yu Horie , Amir Arbabi , Andrei Faraon
CPC classification number: G02F1/017 , G02F1/0107 , G02F1/19 , G02F1/292 , G02F2001/0151 , G02F2001/0154 , G02F2201/307 , G02F2203/10 , G02F2203/12 , G02F2203/18
Abstract: Methods and systems for controlling the phase of electromagnetic waves are disclosed. A device can consist of a guided resonance grating layer, a spacer, and a reflector. A plurality of devices, arranged in a grid pattern, can control the phase of reflected electromagnetic phase, through refractive index control. Carrier injection, temperature control, and optical beams can be applied to control the refractive index.
-
公开(公告)号：US11968848B2
公开(公告)日：2024-04-23
申请号：US17071364
申请日：2020-10-15
Inventor： Seunghoon Han , Kwanghee Lee , Yongwan Jin , Yongsung Kim , Changgyun Shin , Jeongyub Lee , Amir Arbabi , Andrei Faraon , Yu Horie
IPC: H10K39/32 , H01L27/146
CPC classification number: H10K39/32 , H01L27/14621 , H01L27/14636 , H01L27/14645
Abstract: An image sensor includes a first light sensor layer including light sensing cells configured to sense first light of an incident light and generate electrical signals based on the sensed first light, and a color filter array layer disposed on the first light sensor layer, and including color filters respectively facing the light sensing cells. The image sensor further includes a second light sensor layer disposed on the color filter array layer, and configured to sense second light of the incident light and generate an electrical signal based on the sensed second light. Each of the color filters includes a nanostructure including a first material having a first refractive index, and a second material having a second refractive index greater than the first refractive index, the first material and the second material being alternately disposed with a period.
-
公开(公告)号：US10881336B2
公开(公告)日：2021-01-05
申请号：US15241914
申请日：2016-08-19
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Andrei Faraon , Amir Arbabi , Yu Horie
Abstract: A solution containing a target molecule and a reference molecule is illuminated to obtain Raman signals. An optical metasurface is used as a diffractive optical element to split the Raman signal from the target molecule and the Raman signal from the reference molecule. The target and reference Raman signals can be detected at different locations with different photodetectors, and the target molecule concentration in the solution is determined by comparing the target and reference Raman signals.
-
Patent Agency Ranking
公开(公告)号：US10578492B2
公开(公告)日：2020-03-03
申请号：US16146523
申请日：2018-09-28
Inventor： Duhyun Lee , Andrei Faraon , Ehsan Arbabi , Sadegh Faraji-Dana , Mahsa Seyedeh Kamali , Yu Horie , Chanwook Baik
IPC: G01J4/04
Abstract: A polarimeter for measuring a polarization rotation caused by a measurement object is provided, the polarimeter including an optically active material. The polarimeter includes a light source unit for irradiating a measurement object with light having a specific polarization; an anisotropic meta surface element for splitting reaction light, obtained by reacting the light of the specific polarization irradiated by the light source unit with the measurement object, into first and second reaction light; and a detection unit for detecting the first and second reaction light separated by the anisotropic meta surface element according to polarization. The polarization rotation caused by the measurement object may be calculated by comparing detection signals of the first and second reaction light detected by the detection unit.
-
公开(公告)号：US10359549B2
公开(公告)日：2019-07-23
申请号：US15941799
申请日：2018-03-30
Inventor： Seunghoon Han , Yu Horie , Andrei Faraon , Sungwoo Hwang
IPC: H04N3/14 , H04N5/335 , G02B5/20 , H01L27/146 , G03B33/16
Abstract: An image sensor includes an optical sensor layer including a plurality of light-sensitive cells configured to sense light to generate electrical signals, and a color filter array layer disposed on the optical sensor layer and including a plurality of color filters respectively facing the plurality of light-sensitive cells. Each of the plurality of color filters includes a nanostructure in which a first material having a first refractive index and a second material having a second refractive index higher than the first refractive index are arranged. The first material and the second material are alternatively positioned at an interval less than a central wavelength of a color of the color filter. Thus, a thin image sensor having good wavelength selectivity and suitable for obtaining high resolution images is provided.
-
公开(公告)号：US09958582B2
公开(公告)日：2018-05-01
申请号：US14953569
申请日：2015-11-30
Inventor： Seunghoon Han , Yu Horie , Andrei Faraon , Sungwoo Hwang
IPC: H04N3/14 , H04N5/335 , G02B5/20 , H01L27/146 , G03B33/16
CPC classification number: G02B5/201 , G03B33/16 , H01L27/14621 , H01L27/14625 , H01L27/14685
Abstract: An image sensor includes an optical sensor layer including a plurality of light-sensitive cells configured to sense light to generate electrical signals, and a color filter array layer disposed on the optical sensor layer and including a plurality of color filters respectively facing the plurality of light-sensitive cells. Each of the plurality of color filters includes a nanostructure in which a first material having a first refractive index and a second material having a second refractive index higher than the first refractive index are arranged. The first material and the second material are alternatively positioned at an interval less than a central wavelength of a color of the color filter. Thus, a thin image sensor having good wavelength selectivity and suitable for obtaining high resolution images is provided.
-
公开(公告)号：US09939587B2
公开(公告)日：2018-04-10
申请号：US15249608
申请日：2016-08-29
Inventor： Seunghoon Han , Yu Horie , Andrei Faraon , Amir Arbabi
CPC classification number: G02B6/29356 , G01J3/18 , G01J3/1895 , G01J3/26 , G01J2003/2826 , G02B5/1809 , G02B5/201 , G02B5/281 , G02B5/288 , G02B6/29325
Abstract: An on-chip optical filter having Fabri-Perot resonators and a spectrometer may include a first sub-wavelength grating (SWG) reflecting layer and a second SWG reflecting layer facing each other. A plurality of Fabri-Perot resonators are formed by the first SWG reflecting layer and the second SWG reflecting layer facing each other. Each of the Fabri-Perot resonators may transmit light corresponding to a resonance wavelength of the Fabri-Perot resonator. The resonance wavelengths of the Fabri-Perot resonators may be determined according to duty cycles of grating patterns.
-
公开(公告)号：US10732437B2
公开(公告)日：2020-08-04
申请号：US15957541
申请日：2018-04-19
Applicant: California Institute of Technology
Inventor： Mooseok Jang , Yu Horie , Atsushi Shibukawa , Andrei Faraon , Changhuei Yang
Abstract: Complex wavefront engineering is realized through a random metasurface phase mask backed by a phase-only spatial light modulator. The metasurface consists of an array of subwavelength nanoscatterers which give the metasurface a pre-arranged disorder. Since the transmission matrix of the disordered metasurface is known, there is no need for extensive characterization measurements which are instead required in standard disordered optical devices.
-
-
-
-
-
-
-
-
-
Search Results
13
records
(took 0.018 seconds)
