Abstract
A porous-wall hollow glass microsphere (PW-HGM) was investigated as an optical resonator for chemical vapor sensing. a single mode optical fiber taper was used to interrogate the micro resonator. Adsorption of chemical molecules into the nanosized pores induced a refractive index change of the thin wall and thus a shift in its resonance spectrum. the PW-HGM resonator had shown higher vapor detection sensitivity in comparison with a solid microsphere under similar test conditions. © 2011 Optical Society of America.
Recommended Citation
H. Wang et al., "Optical Microresonator based on Hollow Sphere with Porous Wall for Chemical Sensing," Optics Letters, vol. 37, no. 1, pp. 94 - 96, Optica Publishing Group, Jan 2012.
The definitive version is available at https://doi.org/10.1364/OL.37.000094
Department(s)
Nuclear Engineering and Radiation Science
Second Department
Electrical and Computer Engineering
International Standard Serial Number (ISSN)
1539-4794; 0146-9592
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Optica Publishing Group, All rights reserved.
Publication Date
01 Jan 2012
