Optomechanical probes of resonances in amplifying microresonators.

Schomerus, Henning and Wiersig, Jan and Hentschel, Martina (2004) Optomechanical probes of resonances in amplifying microresonators. Physical review a, 70. 012703. ISSN 1094-1622

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We investigate whether the force and torque exerted by light pressure on an irregularly shaped dielectric resonator allow to detect resonant frequencies, delivering information complemental to the scattering cross section by mechanical means. The peak-to-valley ratio in the torque signal can be many times larger than in the scattering cross section, and, furthermore, depends on the structure of the resonance wave pattern. The far-field emission pattern of the associated quasibound states can be tested by the angular dependence of the mechanical mechanical probes at finite amplification rate. We relate the force and torque to the scattering matrix and present numerical results for an annularly shaped dielectric resonator.

Item Type: Journal Article
Journal or Publication Title: Physical review a
Uncontrolled Keywords: /dk/atira/pure/subjectarea/asjc/3100/3107
Departments: Faculty of Science and Technology > Physics
ID Code: 671
Deposited By: Dr Henning Schomerus
Deposited On: 31 Oct 2007
Refereed?: Yes
Published?: Published
Last Modified: 23 Feb 2020 01:28
URI: https://eprints.lancs.ac.uk/id/eprint/671

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