Share Email Print

Proceedings Paper

Optical microcavities: single virus detection and nanoparticle trapping
Author(s): Frank Vollmer; Stephen Arnold
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Single polystyrene nanoparticles are detected from resonance wavelength fluctuations in toroidal and spherical microcavities. The magnitude of the wavelength-shift signal follows a reactive mechanism with inverse dependence on mode volume. By reducing the size of a microsphere cavity we demonstrate sensitivity to single Influenza A virions. Furthermore, we introduce a novel mechanism for trapping and accumulation of nanoparticles at the microcavity-sensorregion by utilizing light-force exerted in evanescent field gradients.

Paper Details

Date Published: 21 August 2009
PDF: 9 pages
Proc. SPIE 7397, Biosensing II, 739702 (21 August 2009); doi: 10.1117/12.827264
Show Author Affiliations
Frank Vollmer, Harvard Univ. (United States)
Stephen Arnold, New York Univ. (United States)

Published in SPIE Proceedings Vol. 7397:
Biosensing II
Manijeh Razeghi; Hooman Mohseni, Editor(s)

© SPIE. Terms of Use
Back to Top