公开(公告)号：US10461492B2

公开(公告)日：2019-10-29

申请号：US15871065

申请日：2018-01-15

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Yong-Won Song ,  Pulak Chandra Debnath ,  Md. Siam Uddin

IPC: H01S3/11 ,  H01S3/08 ,  C30B29/02 ,  H01S3/083 ,  H01S3/00 ,  C30B25/10 ,  G02F1/01 ,  G02F1/35 ,  H01S3/23

Abstract: A method for in situ synthesis of graphene along a lengthwise direction of a waveguide applied to a photonic device includes processing an evanescent field of laser propagating in the waveguide to spread outward the waveguide, depositing a nickel thin film on a surface of the waveguide, growing graphene between a surface of the waveguide and a nickel thin film by irradiating telecommunication laser to a core of the waveguide, and removing the nickel thin film from the waveguide. Accordingly, graphene with high optical nonlinearity is in situ synthesized in the photonic device.