公开(公告)号：US20210159670A1

公开(公告)日：2021-05-27

申请号：US17141792

申请日：2021-01-05

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byunghoon NA ,  Seunghoon Han

IPC: H01S5/183 ,  H01S5/187 ,  G02B27/28 ,  G01B11/24 ,  G01D5/30 ,  H01S5/024 ,  G01B11/25

Abstract: A vertical cavity surface emitting laser includes a gain layer configured to generate light; a distributed Bragg reflector below the gains layer; and a meta structure reflector above the gain layer and comprising a plurality of nano structures having a sub wavelength dimension.

公开(公告)号：US20200287081A1

公开(公告)日：2020-09-10

申请号：US16884674

申请日：2020-05-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byunghoon NA ,  Changyoung Park ,  Yonghwa Park

IPC: H01L33/06 ,  G02F1/017 ,  H01L33/04 ,  H01L33/30 ,  H01L33/60

Abstract: Provided is an optical device including an active layer, which includes two outer barriers and a coupled quantum well between the two outer barriers. The coupled quantum well includes a first quantum well layer, a second quantum well layer, a third quantum well layer, a first coupling barrier between the first quantum well layer and the second quantum well layer, and a second coupling barrier between the second quantum well layer and the third quantum well layer. The second quantum well layer is between the first quantum well layer and the third quantum well layer. An energy band gap of the second quantum well layer is less than an energy band gap of the first quantum well layer, and an energy band gap of the third quantum well layer is equal to or less than the energy band gap of the second quantum well layer.

公开(公告)号：US20200083669A1

公开(公告)日：2020-03-12

申请号：US16360649

申请日：2019-03-21

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  UNIVERSITY OF MASSACHUSETTS

Inventor： Byunghoon NA ,  Mahdad MANSOUREE ,  Seunghoon HAN ,  Amir ARBABI

IPC: H01S5/183 ,  H01S5/343 ,  H01S5/347 ,  H01S5/42 ,  H01S5/042 ,  G01B11/24 ,  G01B11/14 ,  G01P13/00

Abstract: Provided are an addressable laser array device and an electronic apparatus including the addressable laser array device. The addressable laser array device includes a plurality of VCSELs, each including a distributed Bragg reflector (DBR), a nanostructure reflector including a plurality of nanostructures having a sub-wavelength dimension, and a gain layer disposed between the DBR and the nanostructure reflector; a plurality of first wiring patterns extending in a first direction and being electrically connected to the plurality of VCSELs, respectively; and a plurality of second wiring patterns extending in a second direction intersecting the first direction and being electrically connected to the plurality of VCSELs, respectively, wherein the plurality of VCSELs are disposed at intersections of the plurality of first wiring patterns and the plurality of second wiring patterns, and the addressable VCSEL array device is configured to selectively drive at least some of the plurality of VCSELs.

公开(公告)号：US20200076163A1

公开(公告)日：2020-03-05

申请号：US16248276

申请日：2019-01-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seunghoon HAN ,  Byunghoon NA

IPC: H01S5/183

Abstract: Vertical cavity surface-emitting lasers (VCSELs) includes a vertical cavity surface-emitting laser including a gain layer configured to generate light, a distributed Bragg reflector disposed on a first surface of the gain layer, and a nanostructure reflector disposed on a second surface of the gain layer opposite from the first surface, the nanostructure reflector including a plurality of nanostructures having a sub-wavelength dimension, wherein the plurality of nanostructures include a plurality of anisotropic nanoelements and are configured to emit a circularly polarized laser light through the nanostructure reflector based on distributions and arrangement directions of the plurality of anisotropic nanoelementss.

公开(公告)号：US20190137665A1

公开(公告)日：2019-05-09

申请号：US15992829

申请日：2018-05-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jangwoo YOU ,  Byunghoon NA ,  Seunghoon HAN

IPC: G02B3/08 ,  G02B1/00 ,  G02B5/08 ,  G01S17/48 ,  G01S7/481

Abstract: Provided are projectors, each including a light source configured to emit laser light, a substrate spaced apart from the light source by a distance, a pattern mask including a pattern on a first surface of the substrate, the first surface facing the light source, and a meta-lens including a plurality of first nanostructures on a second surface of the substrate, the second surface facing the first surface, the nanostructures having a shape dimension of a sub-wavelength that is less than a wavelength of light emitted from the light source.

公开(公告)号：US20180196138A1

公开(公告)日：2018-07-12

申请号：US15867015

申请日：2018-01-10

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

Inventor： Duhyun LEE ,  Muhammad ALAM ,  Harry ATWATER ,  Ragip PALA ,  Byunghoon NA ,  Seunghoon HAN

IPC: G01S17/02 ,  G02F1/21 ,  G02F1/017 ,  G01S7/481 ,  G02F1/015

CPC classification number: G01S17/02 ,  G01S7/481 ,  G01S7/4817 ,  G02F1/01716 ,  G02F1/21 ,  G02F1/292 ,  G02F2001/0151 ,  G02F2001/213 ,  G02F2202/30

Abstract: 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.

公开(公告)号：US20230016681A1

公开(公告)日：2023-01-19

申请号：US17948026

申请日：2022-09-19

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

Inventor： Duhyun LEE ,  Muhammad ALAM ,  Harry ATWATER ,  Ragip PALA ,  Byunghoon NA ,  Seunghoon HAN

IPC: G01S17/02 ,  G02F1/017 ,  G01S7/481 ,  G02F1/21 ,  G02F1/29

Abstract: 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.

公开(公告)号：US20210270601A1

公开(公告)日：2021-09-02

申请号：US17322385

申请日：2021-05-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seunghoon HAN ,  Byunghoon NA ,  Jangwoo YOU

IPC: G01B11/22 ,  H01S5/183 ,  H01S5/12 ,  G02B3/08 ,  H01S5/40 ,  G02B3/00 ,  H01S5/42 ,  G02B1/00 ,  G02B5/18 ,  G02B27/42

Abstract: Provided are a nanostructured optical element, a depth sensor, and an electronic device. The nanostructured optical element includes: a light source in which a plurality of laser sources irradiating light are configured as an array; a meta-pattern layer including a plurality of first nano-posts that are two-dimensionally configured while satisfying a sub-wavelength condition, wherein the plurality of first nano-posts are configured to change the light from the light source into structured light; and a deflecting layer between the light source and the meta-pattern layer, and configured to change a proceeding direction of the light to make the light from the light source be incident to the meta-pattern layer.

公开(公告)号：US20200067278A1

公开(公告)日：2020-02-27

申请号：US16544390

申请日：2019-08-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Seunghoon HAN ,  Byunghoon NA

IPC: H01S5/183 ,  H01S5/40 ,  H01S5/343 ,  H01S5/024 ,  H01S5/022

Abstract: Provided is a back side emitting light source array device and an electronic apparatus, the back side emitting light source array device includes a substrate, a distributed Bragg reflector (DBR) provided on a first surface of the substrate, a plurality of gain layers which are provided on the DBR, the plurality of gain layers being spaced apart from one another, and each of the plurality of gain layers being configured to individually generate light, and a nanostructure reflector provided on the plurality of gain layers opposite to the DBR, and including a plurality of nanostructures having a sub-wavelength shape dimension, wherein a reflectivity of the DBR is less than a reflectivity of the nanostructure reflector such that the light generated is emitted through the substrate.

公开(公告)号：US20190319430A1

公开(公告)日：2019-10-17

申请号：US16242427

申请日：2019-01-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byunghoon NA ,  Jangwoo YOU ,  Namseop KWON ,  Minkyung LEE ,  Seunghoon HAN

IPC: H01S5/183 ,  H01S5/42

Abstract: Provided are a structured light projector that generates and projects structured light, and an electronic apparatus including the structured light projector. The structured light projector includes an illuminator configured to emit light, a pattern mask configured to form structured light by partially transmitting and partially blocking incident light from the illuminator based on a pattern of the pattern mask, and a lens configured to project the structured light. The illuminator includes a plurality of illumination areas respectively facing a plurality of areas of the pattern mask, wherein intensities of lights respectively emitted by the plurality of illumination areas are different from one other.