Cryogenic optomechanics with a Si3N4 membrane and classical laser noise

We demonstrate a cryogenic optomechanical system comprising a flexible Si _3 N _4 membrane placed at the center of a free-space optical cavity in a 400 mK cryogenic environment. We observe a mechanical quality factor Q  > 4 × 10 ^6 for the 261 kHz fundamental drum-head mode of the membrane, and a...

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Bibliographic Details

Published in:	New Journal of Physics
Main Authors:	A M Jayich, J C Sankey, K Børkje, D Lee, C Yang, M Underwood, L Childress, A Petrenko, S M Girvin, J G E Harris
Format:	Article
Language:	English
Published:	IOP Publishing 2012-01-01
Online Access:	https://doi.org/10.1088/1367-2630/14/11/115018