| Issue |
EPJ Web Conf.
Volume 335, 2025
EOS Annual Meeting (EOSAM 2025)
|
|
|---|---|---|
| Article Number | 03036 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting - Applications of Optics and Photonics | |
| DOI | https://doi.org/10.1051/epjconf/202533503036 | |
| Published online | 22 September 2025 | |
https://doi.org/10.1051/epjconf/202533503036
PEN fluorescent birefringence sensor in ethanol volatilization measurement
Department of Semiconductor and Electro-Optical Engineering, Southern Taiwan University of Science and Technology, 710301 Tainan, Taiwan
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Published online: 22 September 2025
Abstract
Through the fluorescence characteristics of polyethylene naphthalate (PEN) material under short-wavelength excitation, a boradband light source of visible wavelengths can be generated. By combining this with the white-light source, we propose the design of a simple birefringent PEN sensor, utilized in a white-light polarization interferometer for the dynamic measurement of ethanol volatilization. Based on these experimental observations, the application of detecting variations in liquid refractive index can be validated.
© The Authors, published by EDP Sciences, 2025
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