Sensitivity enhancement of 1-D photonic crystal by waveguide width variation for biosensing application

被引：0

作者：

Haron, Mohamad Hazwan ^{[1
]}

Berhanuddin, Dilla Duryha ^{[1
]}

Shaari, Sahbudin ^{[1
]}

Majlis, Burhanuddin Yeop ^{[1
]}

Zain, Ahmad Rifqi Md ^{[1
,2
]}

机构：

[1] Univ Kebangsaan Malaysia, Inst Microengn & Nanoelect IMEN, Bangi, Selangor, Malaysia

[2] Harvard John A Paulson Sch Engn & Appl Sci SEAS, Cambridge, MA 02134 USA

来源：

2018 IEEE 7TH INTERNATIONAL CONFERENCE ON PHOTONICS (ICP) | 2018年

关键词：

Photonic crystal; optical biosensor; biosensor sensitivity; silicon-on-insulator SOI; photonic wire cavitiy; refractive index sensor; QUALITY-FACTOR;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The technique to enhance and control the sensitivity of a one dimensional photonic crystal biosensor has been investigated by using 3D FDTD and Eigenmode solver in Lumerical software. Our results show that by reducing the waveguide width, sensitivity of the 1D-PhC biosensor device will increase. This can be explained by observing the evanescent field strength shown by the mode profile which differs at particular width. By using this technique, the sensitivity can be enhanced and control geometrically. The highest sensitivity obtained is 307 nm/RIU. However by shifting the light energy from inside to outside of the waveguide, light confinement is sacrificed and may result in lower quality factor device.

引用

页数：3

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