Open AccessWhispering gallery mode sensing with a dual frequency comb probe
Author(s) -
Vincent Michaud-Belleau,
J.C. Roy,
Simon Potvin,
Jean-Raphaël Carrier,
Louis-Simon Verret,
M. Charlebois,
Jérôme Genest,
Claudine Nì. Allen
Publication year - 2012
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.20.003066
Subject(s) - whispering gallery wave , optics , materials science , interferometry , microsphere , frequency comb , impulse (physics) , laser , physics , quantum mechanics , chemical engineering , engineering
Silica microspheres are probed with a dual comb interferometry setup. The impulse responses of these microresonators are measured with a temporal resolution smaller than 400 fs over more than 200 ps. The amplitudes and phases of the impulse responses are interpreted as providing sensing information. The more familiar transmission spectra corresponding to the measured impulse responses are also calculated and shown. Sensing is demonstrated by varying the concentration of isopropanol in de-ionized water surrounding the microsphere and by binding bovine serum albumin on the silanized microsphere surface.