Abstract
Silica microspheres were coated with a porous silica layer. The wavelength shift of the whispering gallery modes of the coated microsphere was used to detect small traces of ammonia vapors. The sensing sensitivities of different modes of the same microsphere were found to differ greatly, which is attributed to the modes having different radial indices. This effect was found to be more pronounced in the microspheres coated with thicker coatings.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
