中南民族大学学报（自然科学版）2020，Vol.39Issue(3)：277-282,6.DOI:10.12130/znmdzk.20200310
狄拉克半金属中电调谐古斯-汉欣位移(英文)
Electrically tunable Goos-H?nchen shift in Dirac semimetal
摘要
Abstract
Goos-H?nchen (GH) shift is significant in the reflection of optical beams. Here the GH shift of the linearly polarized light incident on Dirac semimetal is theoretically and numerically investigated. Through distinguishing the real part of the dielectric function, Dirac semimetal is identified as the high and low loss dielectric response, and the metallic response. It is found that the large phase jump causes the large GH shift only in the metallic region, which may provide a strategy for infrared filtering. And in the metallic region, the TE polarized GH shifts are always positive and close to zero, while the TM polarized GH shifts accompanied by an increasing Fermi energy are always negative and only of minimal values. By electrically tuning the Fermi energy of Dirac semimetal, the dielectric function and GH shifts can be manipulated, and inversely the GH shifts can be used to measure Fermi energy.关键词
狄拉克半金属/古斯-汉欣位移/电调谐Key words
Dirac semimetal/Goos-Hänchen effect/electrically tunable分类
数理科学引用本文复制引用
曹振洲,肖之伟,王国飞..狄拉克半金属中电调谐古斯-汉欣位移(英文)[J].中南民族大学学报（自然科学版）,2020,39(3):277-282,6.基金项目
中央高校基本科研业务费专项资金资助项目(CZQ19002) （CZQ19002）
