OT5.129 - Designing a Helically Twisted Photonic Crystal Fiber for Gas Sensing in the Terahertz Region
- Event
- EUROSENSORS XXXVI
2024-09-01 - 2024-09-04
Debrecen (Hungary) - Band
- Lectures
- Chapter
- OT5 - Chemical Sensors
- Author(s)
- H. Pakarzadeh, H. Saberi - Shiraz University of Technology, Shiraz (Iran), J. Hajivandi - University of Economics and Technology, Ankara (Turkey)
- Pages
- 115 - 116
- DOI
- 10.5162/EUROSENSORSXXXVI/OT5.129
- ISBN
- 978-3-910600-03-4
- Price
- free
Abstract
A simple and practical structure of helically twisted photonic crystal fiber (PCF) with Topas material is designed for the first time. The core of the fiber is air which is the most transparent material for transmitting terahertz (THz) waves while its cladding is proposed with a single ring of air holes. A complete twist along the 50cm fiber shows five low loss transmission bands in the ranges of 0.44-0.62, 0.87-1.42, 1.4-2.04, 1.98-2.48 and 2.7-3.0 THz. The proposed helically twisted PCF sensor with maximum sensitivity of 3125 GHz/RIU is shown to have great applications for gas sensing in the THz region.