Jump to main content
Jump to site search

Issue 22, 2014
Previous Article Next Article

Roll up polymer/oxide/polymer nanomembranes as a hybrid optical microcavity for humidity sensing

Author affiliations

Abstract

A hybrid optical microcavity from rolled-up polymer/oxide/polymer nanomembranes presents its excellent capability for environmental relative humidity detection. When exposed to a moist surrounding, poly(acrylic acid)/poly(ethylenimine) polymers swell greatly due to the absorption of water molecules, which thus leads to an increased wall thickness of the tubular optical microcavity and therefore presents a profound wavelength redshift of its whispering-gallery mode resonance. These experiments fit well with the calculation based on the Mie-scattering theory. Theoretical calculation also demonstrates that the thin walls of our tubular microcavities contribute to a high detection sensitivity compared to other microcavities. Our work could lead to new designs and applications of optical microcavities.

Graphical abstract: Roll up polymer/oxide/polymer nanomembranes as a hybrid optical microcavity for humidity sensing

Back to tab navigation

Article information


Submitted
22 Jun 2014
Accepted
07 Sep 2014
First published
10 Sep 2014

Nanoscale, 2014,6, 13646-13650
Article type
Paper

Roll up polymer/oxide/polymer nanomembranes as a hybrid optical microcavity for humidity sensing

J. Zhang, J. Zhong, Y. F. Fang, J. Wang, G. S. Huang, X. G. Cui and Y. F. Mei, Nanoscale, 2014, 6, 13646
DOI: 10.1039/C4NR03473B

Social activity

Search articles by author

Spotlight

Advertisements