公开(公告)号：KR1020140018672A

公开(公告)日：2014-02-13

申请号：KR1020120085126

申请日：2012-08-03

Applicant: 한국과학기술연구원

Inventor： 김재헌 ,  김두근 ,  전성찬 ,  이지석 ,  이석 ,  우덕하 ,  이택진 ,  김철기 ,  이혁재

IPC: G02B6/35 ,  G02B26/08

CPC classification number: G02B26/08 ,  G02B6/353 ,  G02B26/023 ,  H01S3/0912

Abstract: An optical switch may include a graphene layer to which incident light is applied; and a pump optical source for adjusting the transmittance of the incident light to the graphene layer by selectively applying pump light to the graphene layer. The incident light does not saturate the Fermi level of the graphene layer. The pump optical source determines the power of the pump light to allow the pump light to increase the Fermi level of the graphene layer to be higher than the energy level of the incident light. The optical switch changes the optical absorption of the graphene layer by adjusting lights applied to the graphene layer; and enables rapid control for lights in comparison with a conventional electronic control system.

Abstract translation: 光学开关可以包括施加入射光的石墨烯层; 以及泵浦光源，用于通过选择性地将泵浦光施加到石墨烯层来调节到石墨烯层的入射光的透射率。 入射光不会使石墨烯层的费米能级饱和。 泵浦光源确定泵浦光的功率，以允许泵浦光将石墨烯层的费米能级提高到高于入射光的能级。 光开关通过调节施加到石墨烯层的光来改变石墨烯层的光吸收; 并且与传统的电子控制系统相比，能够快速控制灯。