Terahertz refractive index sensor based on the guided resonance in a photonic crystal slab
Terahertz refractive index sensor based on the guided resonance in a photonic crystal slab
复制标题
基于光子晶体板中引导谐振的太赫兹折射率传感器
DOI:
10.1016/j.optcom.2018.10.061
复制
发表时间:
2019-03
影响因子:
2.4
通讯作者:
Zhanghua Han
中科院分区:
文献类型:
--
作者:
Yulin Wang;Wei Cheng;Jianyuan Qin;Zhanghua Han
The optical properties of a photonic crystals slab (PCS) are highly sensitive to environmental variation. PCS thus are an attractive platform for sensing application. We numerically demonstrate a terahertz refractive index sensor based on the guided resonance in a two-dimensional PCS. The PCS consists of a square lattice of air holes in a silicon slab fabricated on a quartz substrate. By varying each structural parameter systematically, we study the dependence of the resonance located around 0.508 THz on the structural parameters of PCS, and then optimize the structural parameters of PCS for a higher sensitivity. We apply the PCS sensor to detect the refractive index of analytes. The sensitivity of the sensor reaches 23.08 GHz/RIU for the resonance located around 0.508 THz. Our results provide insight into the future terahertz spectroscopy for sensing detection.
登录
查看更多内容
影响因子:
3.7
作者:
Johnson, SG;Fan, SH;Kolodziejski, LA
通讯作者:
Kolodziejski, LA
影响因子:
4
作者:
Liu, Tzu-Ming;Chen, Hung-Ping;Sun, Chi-Kuang
通讯作者:
Sun, Chi-Kuang
影响因子:
3.8
作者:
El Beheiry, Mohamed;Liu, Victor;Levi, Ofer
通讯作者:
Levi, Ofer
影响因子:
35
作者:
Zhu, Jiangang;Ozdemir, Sahin Kaya;Yang, Lan
通讯作者:
Yang, Lan
影响因子:
4
作者:
Cong, Longqing;Tan, Siyu;Singh, Ranjan
通讯作者:
Singh, Ranjan