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Thermal Control of a Dual Mode Parametric Sapphire Transducer

Belfi, Jacopo and Beverini, Nicolò and Michele, Andrea De and Gabbriellini, Gianluca and Mango, Francesco and Passaquieti, Roberto (2009) Thermal Control of a Dual Mode Parametric Sapphire Transducer. arXiv .

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Abstract

We propose a method to control the thermal stability of a sapphire dielectric transducer made with two dielectric disks separated by a thin gap and resonating in the whispering gallery (WG) modes of the electromagnetic field. The simultaneous measurement of the frequencies of both a WGH mode and a WGE mode allows one to discriminate the frequency shifts due to gap variations from those due to temperature instability. A simple model, valid in quasi equilibrium conditions, describes the frequency shift of the two modes in terms of four tuning parameters. A procedure for the direct measurement of them is presented.

Item Type: Article
Additional Information: Imported from arXiv
Subjects: Area02 - Scienze fisiche > FIS/01 - Fisica sperimentale
Divisions: Dipartimenti (from 2013) > DIPARTIMENTO DI FISICA
Depositing User: dott.ssa Sandra Faita
Date Deposited: 29 Jan 2014 23:43
Last Modified: 29 Jan 2014 23:43
URI: http://eprints.adm.unipi.it/id/eprint/1626

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