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Proceedings Paper

Whispering gallery modes excited by two–photon absorption induced by an evanescent field
Author(s): Smitha Kuriakose; Dru Morrish; Xiaosong Gan; James W. M. Chon; Min Gu
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Paper Abstract

In this paper, we report the excitation of whispering gallery modes (WGM) using a focused evanescent field. A focused evanescent field generated by total internal reflection at the cover glass-air interface was used to induce two-photon absorption in fluorescent polymer microcavities. By using a focused evanescent field it was possible to effectively couple light into the whispering gallery modes by the efficient overlap between the excitation volume and the cavity modes. The recorded whispering gallery mode spectra using an evanescent wave showed up to 38% enhancement in the spectral characteristics.

Paper Details

Date Published: 11 September 2006
PDF: 5 pages
Proc. SPIE 6326, Optical Trapping and Optical Micromanipulation III, 63260D (11 September 2006); doi: 10.1117/12.682298
Show Author Affiliations
Smitha Kuriakose, Swinburne Univ. of Technology (Australia)
Dru Morrish, Swinburne Univ. of Technology (Australia)
Xiaosong Gan, Swinburne Univ. of Technology (Australia)
James W. M. Chon, Swinburne Univ. of Technology (Australia)
Min Gu, Swinburne Univ. of Technology (Australia)

Published in SPIE Proceedings Vol. 6326:
Optical Trapping and Optical Micromanipulation III
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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