公开(公告)号：US11294207B2

公开(公告)日：2022-04-05

申请号：US16848433

申请日：2020-04-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil Kim ,  Junghyun Park ,  Duhyun Lee ,  Byunggil Jeong

IPC: G02F1/015 ,  H01S5/00 ,  H01S5/183

Abstract: Provided is an optical modulator including a plurality of unit cells, an active layer including a plurality of refractive index changing areas that are separated from each other, each of the plurality of refractive index changing areas having a refractive index that changes based on an electrical signal applied thereto, a plurality of antenna patterns provided over the active layer, and a mirror layer provided under the active layer opposite to the plurality of antenna patterns.

公开(公告)号：US11287516B2

公开(公告)日：2022-03-29

申请号：US16927476

申请日：2020-07-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil Kim ,  Junghyun Park ,  Duhyun Lee ,  Byunggil Jeong

IPC: G01S7/481 ,  G02F1/29 ,  G01S17/931

Abstract: A spatial light modulator and a beam steering apparatus including the same are provided. The spatial light modulator may include a distributed Bragg reflector provided on a substrate, a cavity provided on the distributed Bragg reflector, a grating reflector provided on the cavity, and a heater provided on the grating reflector.

公开(公告)号：US11204514B2

公开(公告)日：2021-12-21

申请号：US16156628

申请日：2018-10-10

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： Duhyun Lee ,  Ruzan Sokhoyan ,  Yu-Jung Lu ,  Ghazaleh Kafaie Shirmanesh ,  Harry Atwater ,  Ragip Pala ,  Chanwook Baik

IPC: G02F1/03 ,  G02F1/017 ,  G02F1/13357 ,  G02F1/015

Abstract: 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.

公开(公告)号：US10303038B2

公开(公告)日：2019-05-28

申请号：US15227012

申请日：2016-08-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil Kim ,  Duhyun Lee ,  Jungwoo Kim ,  Changbum Lee

IPC: G02F1/29

Abstract: A beam steering apparatus includes a transformation layer, of which a refraction index is changed by light irradiation, a pattern layer arranged on the transformation layer and comprises a plurality of patterns, and a light irradiation unit arranged under the transformation layer. The pattern layer has patterns of a metasurface shape to reflect an external laser. The light irradiation unit may emit light having different characteristics.

公开(公告)号：US10274756B2

公开(公告)日：2019-04-30

申请号：US15364796

申请日：2016-11-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil Kim ,  Changgyun Shin ,  Duhyun Lee ,  Jungwoo Kim

IPC: H01L29/78 ,  G02F1/015 ,  G02B1/00 ,  G02F1/00 ,  G02F1/29 ,  H01L29/24 ,  H01L29/786 ,  B82Y20/00

Abstract: A meta device includes a plurality of meta structures that spaced apart from each other and reflect at least a portion of incident light, a plurality of electrodes that are spaced apart from each other, and a controller configured to control a phase shift of reflected light using a voltage applied to the plurality of electrodes.

公开(公告)号：US10234743B2

公开(公告)日：2019-03-19

申请号：US15656318

申请日：2017-07-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sunil Kim ,  Jaechul Park ,  Duhyun Lee ,  Byounglyong Choi

IPC: G02F1/29 ,  G02F1/00 ,  G02F1/015 ,  B82Y20/00 ,  H01L31/0232 ,  H01L31/103

Abstract: A beam steering device is provided including a p-n junction layer disposed on a reflective electrode layer, wherein a refractive index of the p-n junction layer is variable according to a voltage applied to the reflective electrode layer; a nanoantenna layer including a plurality of components disposed on the p-n junction layer; and a common electrode electrically connected to each of the plurality of components of the nanoantenna. The p-n junction layer may include a p-doped layer and an n-doped layer.

公开(公告)号：US09651686B2

公开(公告)日：2017-05-16

申请号：US14808381

申请日：2015-07-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byungkyu Lee ,  Duhyun Lee ,  Jaechul Park

IPC: H01L27/146 ,  G01T1/24

CPC classification number: G01T1/247 ,  G01T1/24 ,  H01L27/14634 ,  H01L27/14636 ,  H01L27/14676

Abstract: An X-ray detector includes a substrate, a plurality of pixel electrodes on the substrate, a photoconductor covering the plurality of pixel electrodes, or a common electrode on the photoconductor. The photoconductor includes at least two photoconductor layers. The photoconductor may also include a current resistance layers disposed between the at least two photoconductor layers. The current resistance layer is configured to reduce current flow between the at least two photoconductor layers.

公开(公告)号：US12147096B2

公开(公告)日：2024-11-19

申请号：US18334838

申请日：2023-06-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junghyun Park ,  Yeonsang Park ,  Sunil Kim ,  Duhyun Lee ,  Byunggil Jeong

IPC: G02F1/03 ,  G02B26/10 ,  G02F1/01 ,  G02F1/09

Abstract: Provided is a light modulator including a substrate, and a resonator configured to modulate a phase of incident light by modulating a refractive index based on an external stimulus, the resonator comprising a first reflective structure provided on the substrate, a cavity layer provided on the first reflective structure, and a second reflective structure provided on the cavity layer, wherein at least one of the first reflective structure or the second reflective structure comprises first material layers, second material layers that are alternately stacked with the first material layers, and a third material layer, and wherein each of the first material layers has a first refractive index, each of the second material layers has a second refractive index that is different from the first refractive index, and the third material layer has a third refractive index that is different from the first refractive index.

公开(公告)号：US12025704B2

公开(公告)日：2024-07-02

申请号：US18070173

申请日：2022-11-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junghyun Park ,  Tatsuhiro Otsuka ,  Duhyun Lee

IPC: G01S17/42 ,  G01S7/481 ,  G01S17/10 ,  G02B26/10 ,  G02F1/29

CPC classification number: G01S17/42 ,  G01S7/4817 ,  G01S17/10 ,  G02B26/10 ,  G02F1/292

Abstract: Provided is a beam scanning apparatus including a plurality of antenna resonators disposed two-dimensionally in a row direction and a column direction, a plurality of row voltage lines that are configured to provide a plurality of driving voltages in a row direction, respectively, a plurality of column voltage lines that are configured to provide a plurality of driving voltages in a column direction, respectively, and a driving voltage conversion circuit configured to control a driving voltage applied to each of the plurality of antenna resonators based on a driving voltage in the row direction that is provided from each of the plurality of row voltage lines and a driving voltage in the column direction that is provided from each of the plurality of column voltage lines.

公开(公告)号：US20240205552A1

公开(公告)日：2024-06-20

申请号：US18222210

申请日：2023-07-14

Applicant: Samsung Electronics Co., Ltd.

Inventor： Duhyun Lee ,  Wontaek Seo ,  Jangwoo You

IPC: H04N23/955 ,  G02B1/00 ,  G02B5/20 ,  H04N23/11

CPC classification number: H04N23/955 ,  G02B1/002 ,  G02B5/208 ,  H04N23/11

Abstract: Provided is an imaging system including a phase mask including a phase modulation meta surface coded with an image reconstruction phase function configured to reconstruct an image, the image reconstruction phase function being obtained by adding a first phase function corresponding to a lens phase to a second phase function which is a random function, and an image sensor configured to convert light, transmitted through the phase mask from an object, into an electrical signal.