公开(公告)号：US11262606B2

公开(公告)日：2022-03-01

申请号：US16857756

申请日：2020-04-24

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)

Inventor： Kiyeon Yang ,  Youngsun Choi ,  Seokho Song ,  Jaewoong Yoon ,  Choloong Han ,  Yongsung Kim ,  Jeongyub Lee ,  Changseung Lee

IPC: G02B6/26 ,  G02B6/12 ,  G02B1/04 ,  G02B6/27 ,  G02F1/09 ,  G02B6/293 ,  G02B6/42 ,  G02F1/095 ,  G02F1/31

Abstract: Nonreciprocal optical transmission devices and optical apparatuses including the nonreciprocal optical transmission devices are provided. A nonreciprocal optical transmission device includes an optical input portion, an optical output portion, and an intermediate connecting portion interposed between the optical input portion and the optical output portion, and comprising optical waveguides. A complex refractive index of any one or any combination of the optical waveguides changes between the optical input portion and the optical output portion, and a transmission direction of light through the nonreciprocal optical transmission device is controlled by a change in the complex refractive index.

公开(公告)号：US20240060907A1

公开(公告)日：2024-02-22

申请号：US18340394

申请日：2023-06-23

Applicant: Samsung Electronics Co., Ltd.

Inventor： Youngsun Choi ,  Soonyang Kwon ,  Kwangrak Kim ,  Jiwoong Kim ,  Jangryul Park ,  Myungjun Lee

IPC: G01N21/95 ,  G01N21/31

CPC classification number: G01N21/9501 ,  G01N21/31 ,  G01N2201/068 ,  G02B21/248

Abstract: In a focus control method of a spectroscopic measuring apparatus, the spectroscopic measuring apparatus having a first objective lens and a second objective lens equipped with a microsphere is provided. A sample is placed on a stage. A spectrum is obtained while moving the second objective lens vertically downward. A light intensity function that changes with a distance from a sample surface is obtained from the spectrum. A focal position of the second objective lens is determined from a threshold value of the light intensity function.

公开(公告)号：US10670891B2

公开(公告)日：2020-06-02

申请号：US15632640

申请日：2017-06-26

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)

Inventor： Kiyeon Yang ,  Youngsun Choi ,  Seokho Song ,  Jaewoong Yoon ,  Choloong Han ,  Yongsung Kim ,  Jeongyub Lee ,  Changseung Lee

IPC: G02F1/31 ,  G02B6/12 ,  G02B6/27 ,  G02B6/42 ,  G02F1/09 ,  G02B6/293 ,  G02F1/095

Abstract: Nonreciprocal optical transmission devices and optical apparatuses including the nonreciprocal optical transmission devices are provided. A nonreciprocal optical transmission device includes an optical input portion, an optical output portion, and an intermediate connecting portion interposed between the optical input portion and the optical output portion, and comprising optical waveguides. A complex refractive index of any one or any combination of the optical waveguides changes between the optical input portion and the optical output portion, and a transmission direction of light through the nonreciprocal optical transmission device is controlled by a change in the complex refractive index.