CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 11898 > Article
Presentation
9 October 2021 Bragg PMMA tube based THz grating waveguide for sensing applications
Jian Chen, Qi Yao, Jijun Feng, Dawei Zhang
Author Affiliations +
Proceedings Volume 11898, Holography, Diffractive Optics, and Applications XI; 118981D (2021) https://doi.org/10.1117/12.2601997
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China
Abstract
Bragg hollow-core PMMA tube waveguides with varying grating structures were theoretically and experimentally investigated for the terahertz (THz) chemical material sensor applications. Compared with single-layer tube, the multi-layer Bragg cases can produce a delayed response in the time domain with an improved extinction ratio. A double tube combination consisted of a thick double-groove chirped grating tube and a thin single-groove chirped grating one can realize an improved detection sensitivity. With different extinction ratio of the measured THz spectra, ethanol and vinegar can be distinguished with a sensitivity of about 18 dB/mL. The proposed multi-layer hollow-core grating waveguide can be further applied for the THz gas sensing applications.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Jian Chen, Qi Yao, Jijun Feng, and Dawei Zhang "Bragg PMMA tube based THz grating waveguide for sensing applications", Proc. SPIE 11898, Holography, Diffractive Optics, and Applications XI, 118981D (9 October 2021); https://doi.org/10.1117/12.2601997
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 PRESENTATION
WATCH
PRESENTATION SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
KEYWORDS
Terahertz radiation
Waveguides
Polymethylmethacrylate
Multilayers
Biological and chemical sensing
Cladding
Liquids
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top