Hollow core photonic crystal fiber for chemical identification in terahertz regime

被引：56

作者：

Habib, Md Ahasan ^{[1
]}

Anower, Md Shamim ^{[1
]}

Abdulrazak, Lway Faisal ^{[2
]}

Reza, Md Selim ^{[3
]}

机构：

[1] Rajshahi Univ Engn & Technol, Dept Elect & Elect Engn, Rajshahi 6204, Bangladesh

[2] Cihan Univ Slemani, Comp Sci Dept, Sulaimaniya, Iraq

[3] Bangabandhu Sheikh Mujibur Rahman Sci & Technol U, Dept Elect & Elect Engn, Gopalganj 8100, Bangladesh

来源：

OPTICAL FIBER TECHNOLOGY | 2019年 / 52卷

关键词：

Liquid sensor; Terahertz; Hollow-core PCF; Confinement loss; Numerical aperture; Sensitivity; MICROSTRUCTURE FIBER; HIGHLY BIREFRINGENT; SENSOR;

D O I：

10.1016/j.yofte.2019.101933

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：

A new kind of rectangular hollow core photonic crystal fiber (HC-PCF) has been proposed and analyzed in the terahertz regime to detect the chemical analytes. In this proposed HC-PCF a rectangular shaped air hole is used in the core and circular air holes are introduced in the cladding. Full vectorial finite element method (FEM) with perfectly matched layer (PML) boundary condition is used to investigate the guiding characteristics of the proposed HC-PCF. Our proposed PCF exhibits a high relative sensitivity and extremely low confinement loss for different chemical analytes. In addition, this proposed chemical sensor offers high birefringence, high numerical aperture and almost zero flattened dispersion over a wide frequency range. This proposed fiber can be used in chemical sensing as well as various polarization maintaining terahertz applications.

引用

页数：6

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