公开(公告)号：US20210055626A1

公开(公告)日：2021-02-25

申请号：US16790993

申请日：2020-02-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byunggil JEONG ,  Sunil KIM ,  Junghyun PARK ,  Duhyun LEE

IPC: G02F1/31

Abstract: Provided a light modulating device including a variable mirror including a plurality of lattice structures, the plurality of lattice structures including a material having a refractive index that changes based on a temperature of the material, a distributed Bragg mirror spaced apart from the variable mirror and provided above the variable mirror, the distributed Bragg mirror including a first material layer and a second material layer that are alternately stacked, and a refractive index of the first material layer being different from a refractive index of the second material layer, and a heating portion configured to heat the plurality of lattice structures and provided below the variable mirror opposite to the distributed Bragg mirror.

公开(公告)号：US20200183148A1

公开(公告)日：2020-06-11

申请号：US16416972

申请日：2019-05-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junghyun PARK ,  Sunil KIM ,  Duhyun LEE ,  Byunggil JEONG

IPC: G02B26/06 ,  G02B26/10 ,  G01S7/481

Abstract: Provided are a beam scanning device and a system including the beam scanning device. The beam scanning device includes: a spatial light modulator configured to modulate a phase of a light for a corresponding pixel of a plurality of pixels; and a phase mask including a support plate arranged in an output direction of the light that is output from the spatial light modulator and a plurality of nanostructures arranged on the support plate differently for each of the plurality of pixels to control the phase of the light.

公开(公告)号：US20180059444A1

公开(公告)日：2018-03-01

申请号：US15685314

申请日：2017-08-24

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Duhyun LEE ,  Changgyun SHIN ,  Sunil KIM ,  Byounglyong CHOI

IPC: G02F1/01 ,  G01S17/06

CPC classification number: G02F1/0126 ,  G01S17/06 ,  G02F1/0121 ,  G02F1/292 ,  G02F2203/50

Abstract: A phase modulation active device and a method of driving the same are provided. The method may include configuring, for the phase modulation active device including a plurality of channels that modulate a phase of incident light, a phase profile indicating a phase modulation target value to be implemented by the phase modulation active device; setting a phase limit value of the phase modulation active device; generating a modified phase profile based on the phase profile by modifying the phase modulation target value, for at least one channel from the plurality of channels that meets or exceeds the phase limit value, to a modified phase modulation target value that is less than the phase limit value in the phase profile; and operating the phase modulation active device based on the modified phase profile. Thus, improved optical modulation performance may be achieved.

公开(公告)号：US20170176651A1

公开(公告)日：2017-06-22

申请号：US15194739

申请日：2016-06-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Duhyun LEE ,  Sunil KIM ,  Changgyun SHIN ,  Jungwoo KIM ,  Chang bum LEE

IPC: G02B5/00 ,  G02F1/29 ,  G02F1/19

CPC classification number: G02B5/008 ,  G02F1/19 ,  G02F1/292 ,  G02F1/2955 ,  G02F2202/30 ,  G02F2203/12

Abstract: A light modulation device includes a dielectric antenna and a refractive-index-variable layer which faces the dielectric antenna and comprises a material having a refractive index that changes according to a signal. A light may be modulated, since resonance characteristics of the dielectric antenna are controlled according to a refractive-index change of the refractive-index-variable layer.

公开(公告)号：US20230324724A1

公开(公告)日：2023-10-12

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 ,  G02F1/01 ,  G02B26/10 ,  G02F1/09

CPC classification number: G02F1/0311 ,  G02F1/0147 ,  G02F1/0316 ,  G02B26/10 ,  G02F1/09 ,  G02F2201/346 ,  G02F2201/307

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：US20210088813A1

公开(公告)日：2021-03-25

申请号：US16805070

申请日：2020-02-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Duhyun LEE ,  Changgyun SHIN ,  Sunil KIM ,  Junghyun PARK ,  Byunggil JEONG

IPC: G02F1/017 ,  G02F1/01 ,  G02F1/19

Abstract: A light modulator for amplifying an intensity of incident light and modulating a phase of the incident light is provided. The light modulator includes: a first distributed Bragg reflector (DBR) layer having a first reflectivity and comprising at least two first refractive index layers that have different refractive indices from each other and are repeatedly alternately stacked; a second DBR layer having a second reflectivity and comprising at least two second refractive index layers that have different refractive indices from each other and are repeatedly alternately stacked; and an active layer disposed between the first DBR layer and the second DBR layer, and comprising a quantum well structure.

公开(公告)号：US20210088812A1

公开(公告)日：2021-03-25

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 ,  H01S5/183 ,  H01S5/00

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：US20200348541A1

公开(公告)日：2020-11-05

申请号：US16932436

申请日：2020-07-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Duhyun LEE ,  Changgyun SHIN ,  Sunil KIM ,  Byounglyong CHOI

IPC: G02F1/01 ,  G02F1/29 ,  G01S17/06

Abstract: A phase modulation active device and a method of driving the same are provided. The method may include configuring, for the phase modulation active device including a plurality of channels that modulate a phase of incident light, a phase profile indicating a phase modulation target value to be implemented by the phase modulation active device; setting a phase limit value of the phase modulation active device; generating a modified phase profile based on the phase profile by modifying the phase modulation target value, for at least one channel from the plurality of channels that meets or exceeds the phase limit value, to a modified phase modulation target value that is less than the phase limit value in the phase profile; and operating the phase modulation active device based on the modified phase profile. Thus, improved optical modulation performance may be achieved.

公开(公告)号：US20200242463A1

公开(公告)日：2020-07-30

申请号：US16434957

申请日：2019-06-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Duhyun LEE

IPC: G06N3/067 ,  H01P1/18

Abstract: An optical neural network apparatus that optically implements an artificial neural network includes an input layer, a hidden layer, and an output layer sequentially arranged in a traveling direction of light, wherein the output layer includes an image sensor including a plurality of light sensing pixels arranged in two dimensions, and wherein the input layer or the hidden layer includes at least one passive phase modulator configured to locally modulate a phase of incident light depending on positions on a two dimensional plane.

公开(公告)号：US20190129206A1

公开(公告)日：2019-05-02

申请号：US16170573

申请日：2018-10-25

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: G02F1/017 ,  B82Y20/00

Abstract: 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.