Porous Silicon Based Bragg-Grating Resonator for Refractive Index Biosensor

被引：50
|
作者：
Sahu, Sourabh [1 ]
Ali, Jalil [2 ,3 ]
Yupapin, Preecha P. [4 ,5 ]
Singh, Ghanshyam [1 ]
机构：
[1] Malaviya Natl Inst Technol Jaipur, Dept Elect & Commun Engn, Jaipur, Rajasthan, India
[2] Univ Teknol Malaysia, IBNU SINA ISIR, Laser Ctr, Johor Baharu 81310, Malaysia
[3] Univ Teknol Malaysia, Fac Sci, Johor Baharu 81310, Malaysia
[4] Ton Duc Thang Univ, Adv Inst Mat Sci, Computat Opt Grp, Ho Chi Minh City, Vietnam
[5] Ton Duc Thang Univ, Fac Elect & Elect Engn, Ho Chi Minh City, Vietnam
来源：
PHOTONIC SENSORS | 2018年 / 8卷 / 03期
关键词：
Biosensor; evanescent field; eigen mode; SURFACE-PLASMON RESONANCE; PHOTONIC CRYSTAL; WAVE-GUIDE; INTERFEROMETER;
D O I：
10.1007/s13320-018-0459-z
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
In this work, we have evaluated the biosensing capability of the porous silicon (PSi) based sidewall Bragg-grating resonator. The approximation of the quasi-TE mode full vector for the eigenmode calculation is performed using a full vector mode solver. The transmission spectra of the device are evaluated using the transfer matrix method. We have observed a shift in the resonant band for a change in the refractive index of biomaterial in the upper cladding region. The theoretical value of the bulk sensitivity is calculated to be 387.48 nm/RIU. The device is suitable for biosensing application due to its ability of interacting signal with the infiltrated analytes in the PSi waveguide core.
引用
收藏
页码：248 / 254
页数：7
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