Cascaded Fabry-Perot fiber sensor based on silica capillary with PMMA for the detection of volatile organic compounds

Ana M. Almeida; João M. Leça; Jörg Bierlich; Marta S. Ferreira

doi:10.1117/12.3022517

20 June 2024 Cascaded Fabry-Perot fiber sensor based on silica capillary with PMMA for the detection of volatile organic compounds

Ana M. Almeida, João M. Leça, Jörg Bierlich, Marta S. Ferreira

Author Affiliations +

Proceedings Volume 12999, Optical Sensing and Detection VIII; 129990G (2024) https://doi.org/10.1117/12.3022517
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

Volatile organic compounds (VOCs) show great potential as biomarkers in non-invasive disease detection. We propose a cascaded Fabry-Perot (FP) fiber sensor for characterizing ethanol and 2-propanol. The sensor fabrication involves splicing a single mode fiber to a silica capillary (SC), followed by cleaving the SC. The SC tip is immersed in a PMMA solution and heated for rapid solvent evaporation, forming a dual cavity. The sensor was tested in the gas phase, using binary hydroalcoholic mixtures containing ethanol and 2-propanol. The response attained was nonlinear, with a maximum sensitivity of -133.7 pm/vol.% and -173.0 pm/vol.% for 2-propanol and the ethanol, respectively, in a range between 35-50 vol.%.

Conference Presentation

Citation Download Citation

Ana M. Almeida, João M. Leça, Jörg Bierlich, and Marta S. Ferreira "Cascaded Fabry-Perot fiber sensor based on silica capillary with PMMA for the detection of volatile organic compounds", Proc. SPIE 12999, Optical Sensing and Detection VIII, 129990G (20 June 2024); https://doi.org/10.1117/12.3022517

ACCESS THE FULL ARTICLE

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