Excitation mapping of whispering gallery modes in silica microcavities

Lin, G, Qian, B, Oručević, F, Candela, Y, Jager, J-B, Cai, Z, Lefèvre-Seguin, V and Hare, J (2010) Excitation mapping of whispering gallery modes in silica microcavities. Optics Letters, 35 (4). pp. 583-585.

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Abstract

We report the direct observation of the electromagnetic-field distribution of whispering gallery modes in silica microcavities (spheres and toroids). It is revealed by their excitation efficiency with a tapered fiber coupler swept along the meridian. The originality of this method lies in the use of the coupler itself for the near-field mapping, eliminating the need of additional tools used in previous work. This method is successfully applied to microspheres and microtoroids.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Fedja Orucevic
Date Deposited: 06 Feb 2012 19:44
Last Modified: 30 Nov 2012 17:04
URI: http://sro.sussex.ac.uk/id/eprint/21990
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