公开(公告)号：US10529879B2

公开(公告)日：2020-01-07

申请号：US15990174

申请日：2018-05-25

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  CHEONGJU University Industry & Academy Cooperation Foundation

Inventor： Kyungsang Cho ,  Sangyeol Lee ,  Chanwook Baik

IPC: H01L31/0352 ,  H01L31/0224 ,  H01L31/0336 ,  H01L31/09 ,  H01L31/112 ,  H01L31/113

Abstract: A photoelectric conversion device may include a substrate, a photoactive layer disposed on the substrate, and a first electrode and a second electrode respectively connected to corresponding edges of the photoactive layer. The photoactive layer may include a first oxide semiconductor layer on the substrate, and a plurality of quantum dot layers and a plurality of second oxide semiconductor layers that are alternately formed on the first oxide semiconductor layer.

公开(公告)号：US10459258B2

公开(公告)日：2019-10-29

申请号：US15668297

申请日：2017-08-03

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chanwook Baik ,  Changwon Lee ,  Heejeong Jeong ,  Jaekwan Kim ,  Byonggwon Song ,  Jeongyub Lee

IPC: G02F1/01 ,  G02B1/00 ,  G02F1/00 ,  G06F17/50 ,  B82Y10/00 ,  B82Y20/00

Abstract: A method of designing a meta optical device is provided. The method includes: setting, via a processor, design data for arrangement and dimensions of a nanostructure of the meta optical device, according to a function to be implemented by the meta optical device; obtaining a phase change graph with respect to a change in the dimensions; setting a shape dimension region with phase defect in the phase change graph; and substituting a shape dimension with phase defect, which is included in the shape dimension region with phase defect among the dimensions included in the design data, with a substitution value that is outside the shape dimension region with phase defect. Accordingly, a meta optical device having no phase defect is implemented.

公开(公告)号：US10277009B2

公开(公告)日：2019-04-30

申请号：US15140654

申请日：2016-04-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Heejeong Jeong ,  Chanwook Baik

IPC: G02B5/08 ,  H01S5/34 ,  H01L33/46 ,  H01S5/183

Abstract: Provided are electromagnetic wave reflectors and optical devices including the same. An electromagnetic wave reflector may include a plurality of layers which have an aperiodic structure and/or thickness. The plurality of layers may satisfy a condition of spatial coherence with respect to electromagnetic waves. The electromagnetic wave reflector may include a plurality of first material layers including a first material having a first refractive index and a plurality of second material layers including a second material having a second refractive index different from the first refractive index. At least two of the plurality of first material layers may have different thicknesses. At least two of the plurality of second material layers may have different thicknesses. At least one of the plurality of first material layers and at least one of the plurality of second material layers may have different thicknesses.

公开(公告)号：US10211597B2

公开(公告)日：2019-02-19

申请号：US15134506

申请日：2016-04-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chanwook Baik ,  Hyochul Kim ,  Yeonsang Park

IPC: H01S5/02 ,  H01S5/10 ,  H01S5/20 ,  H01S5/22 ,  H01S5/24 ,  H01S5/32 ,  H01S5/042 ,  H01S5/065 ,  H01S5/343

Abstract: A semiconductor laser resonator configured to generate a laser beam includes a gain medium layer including a semiconductor material and comprising at least one protrusion formed by at least one trench to protrude in an upper portion of the gain medium layer. In the semiconductor laser resonator, the at least one protrusion is configured to confine the laser beam as a standing wave in the at least one protrusion.

公开(公告)号：US10012824B2

公开(公告)日：2018-07-03

申请号：US15112303

申请日：2015-01-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sangmo Cheon ,  Changwon Lee ,  Unjeong Kim ,  Jineun Kim ,  Younggeun Roh ,  Yeonsang Park ,  Chanwook Baik ,  Jaesoong Lee

IPC: G02F1/29 ,  G02B26/08 ,  G02B17/00 ,  G02B26/00 ,  F21K9/64 ,  G02B5/00

CPC classification number: G02B17/004 ,  F21K9/64 ,  G02B5/008 ,  G02B26/00

Abstract: Provided are an optical device and a method of controlling the direction of light from an optical device. The optical device includes: a substrate; a metal layer on the substrate; a first slot which is provided in the metal layer; and at least one light source provided in the first slot, wherein light is emitted from the at least one light source in the direction of the top part of the first slot or the bottom part of the first slot.