Realization of large transmitted optical Goos-Hanchen shifts in photonic crystal slabs

被引：8

作者：

Du, Shihao ^{[1
,2
]}

Zhang, Wenjie ^{[1
,2
]}

Liu, Wenzhe ^{[3
]}

Zhang, Yanbin ^{[1
,2
]}

Zhao, Maoxiong ^{[1
,2
]}

Shi, Lei ^{[1
,2
]}

机构：

[1] Fudan Univ, Key Lab Micro & Nanophoton Struct, State Key Lab Surface Phys, Minist Educ, Shanghai 200433, Peoples R China

[2] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China

[3] Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Clear Water Bay, Hong Kong, Peoples R China

来源：

NANOPHOTONICS | 2022年 / 11卷 / 20期

基金：

美国国家科学基金会;

关键词：

Goos-Hanchen shift; photonic crystal; transmission phase; REFLECTION; STATES; GIANT; SPACE;

D O I：

10.1515/nanoph-2022-0387

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this letter, we demonstrate the existence of large transmitted optical positive and negative Goos-Hanchen shifts in photonic crystal slabs numerically and experimentally. The Goos-Hanchen shift we observed directly reaches similar to 20 mu m which is 30 times the wavelength, approaching the radius of the beam waist. To explain this phenomenon, we measure the transmission phase through the phase measurement system and find there is an acute phase change near the resonance in photonic crystal slabs, which enhances the Goos-Hanchen shift. Our experimental results are consistent with simulation, and the work can be used to modulate the propagation of light in further research.

引用

页码：4531 / 4536

页数：6

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