Terahertz refractive index sensor with high sensitivity based on two-core photonic crystal fiber

被引：37

作者：

Mishra, Gyan Prakash ^{[1
]}

Kumar, Dharmendra ^{[1
]}

Chaudhary, Vijay Shanker ^{[1
]}

Sharma, Sneha ^{[2
]}

机构：

[1] MMM Univ Technol, Dept Elect & Commun Engn, Gorakhpur, Uttar Pradesh, India

[2] Dayananda Sagar Univ, Dept Elect & Commun Engn, Bangalore, Karnataka, India

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2021年 / 63卷 / 01期

关键词：

mode coupling; photonic crystal fiber; refractive index; sensitivity; sensor; transmission; LOOP; INTERFEROMETER; BIREFRINGENT; BIOSENSOR; PCF;

D O I：

10.1002/mop.32573

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：

This article contributes a highly sensitive novel refractive index (RI) sensor based on two-core photonic crystal fiber (PCF) is proposed in the terahertz (THz) frequency regime. The sensing performance of the proposed RI sensor is based on the mode-coupling theory. Two vertical cores of the PCF divided by the central air hole, act as two separate waveguides. The analyte whose refractive index being sensed is filled in the central air hole of the PCF. A full-vector finite element method (FEM) approach is used to investigate the sensor. Numerical data reveal that the sensitivities of the proposed PCF are 672 600, 940480, 1035300, 1332200, and 1 827 300 nm/RIU for the RI sensing range of analyte from 1.30 to 1.33, 1.34 to 1.37, 1.38 to 1.40, 1.41 to 1.43, and 1.44 to 1.46, respectively. This indicates that the proposed RI sensor is highly sensitive to the refractive index of the analyte.

引用

页码：24 / 31

页数：8

共 35 条

[1] Refractive Index-Based Blood Components Sensing in Terahertz Spectrum [J].

Ahmed, Kawsar ;

Ahmed, Fahad ;

Roy, Subrata ;

Paul, Bikash Kumar ;

Aktar, Mst Nargis ;

Vigneswaran, Dhasarathan ;

Islam, Md Saiful .

IEEE SENSORS JOURNAL, 2019, 19 (09) :3368-3375

[2] Temperature Sensing Using Colloidal-Core Photonic Crystal Fiber [J].

Bozolan, Alexandre ;

Gerosa, Rodrigo M. ;

de Matos, Christiano J. S. ;

Romero, Murilo A. .

IEEE SENSORS JOURNAL, 2012, 12 (01) :195-200

[3] Hybrid dual core photonic crystal fiber as hydrostatic pressure sensor [J].

Chaudhary, Vijay Shanker ;

Kumar, Dharmendra ;

Mishra, Rajan ;

Sharma, Sneha .

OPTIK, 2020, 210

[4] Highly sensitive bend sensor based on Mach-Zehnder interferometer using photonic crystal fiber [J].

Deng, Ming ;

Tang, Chang-Ping ;

Zhu, Tao ;

Rao, Yun-Jiang .

OPTICS COMMUNICATIONS, 2011, 284 (12) :2849-2853

[5] Refractive index sensor based on selectively liquid infiltrated dual core photonic crystal fibers [J].

Gangwar, Rahul Kumar ;

Singh, Vinod Kumar .

PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS, 2015, 15 :46-52

[6] Supermode analysis of multicore photonic crystal fibers [J].

Guan, Chunying ;

Yuan, Libo ;

Shi, Jinhui .

OPTICS COMMUNICATIONS, 2010, 283 (13) :2686-2689

[7] Microchannel-based plasmonic refractive index sensor for low refractive index detection [J].

Haque, Emranul ;

Hossain, Md Anwar ;

Namihira, Yoshinori ;

Ahmed, Feroz .

APPLIED OPTICS, 2019, 58 (06) :1547-1554

[8] COUPLED-MODE THEORY FOR OPTICAL WAVE-GUIDES - AN OVERVIEW [J].

HUANG, WP .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION, 1994, 11 (03) :963-983

[9] Reducing childhood malnutrition in Bangladesh: the importance of addressing socio-economic inequalities [J].

Islam, Md Rashedul ;

Rahman, Md Shafiur ;

Rahman, Md Mahfuzur ;

Nomura, Shuhei ;

de Silva, Angela ;

Lanerolle, Pulani ;

Jung, Jenny ;

Rahman, Md Mizanur .

PUBLIC HEALTH NUTRITION, 2020, 23 (01) :72-82

[10] Exposed-core localized surface plasmon resonance biosensor [J].

Islam, Md Saiful ;

Islam, Mohammad Rakibul ;

Sultana, Jakeya ;

Dinovitser, Alex ;

Ng, Brian W-H ;

Abbott, Derek .

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 2019, 36 (08) :2306-2311

← 1 2 3 4 →