%0 Journal Article
%T Vibration of low amplitude imaged in amplitude and phase by sideband versus carrier correlation digital holography
%+ Laboratoire Hubert Curien (LHC)
%+ Laboratoire Charles Coulomb (L2C)
%A Verrier, N
%A Alloul, L
%A Gross, M
%< avec comité de lecture
%@ 0146-9592
%J Optics Letters
%I Optical Society of America - OSA Publishing
%V 40
%N 3
%P 411 - 414
%8 2015-01-30
%D 2015
%Z 1501.07555
%R 10.1364/OL.40.000411
%Z OCIS codes: (120.7280) Vibration analysis; (090.1995) Digital holography; (040.2840) Heterodyne; (120.2880) Holographic interferometry.
%Z Physics [physics]/Physics [physics]/Optics [physics.optics]Journal articles
%X Sideband holography can be used to get fields images (E0 and E1) of a vibrating object for both the carrier (E0) and the sideband (E1) frequency with respect to vibration. We propose here to record E0 and E1 sequentially, and to image the correlation E1E * 0 . We show that this correlation is insensitive the phase related to the object roughness and directly reflect the phase of the mechanical motion. The signal to noise can be improved by averaging the correlation over neighbor pixel. Experimental validation is made with vibrating cube of wood and with a clarinet reed. At 2 kHz, vibrations of amplitude down to 0.01 nm are detected.
%G English
%2 https://hal.science/hal-01111198/document
%2 https://hal.science/hal-01111198/file/OL9.pdf
%L hal-01111198
%U https://hal.science/hal-01111198
%~ UNIV-ST-ETIENNE
%~ IOGS
%~ CNRS
%~ LAHC
%~ PARISTECH
%~ L2C
%~ ERIS
%~ MIPS
%~ UNIV-MONTPELLIER
%~ UDL
%~ ANR
%~ UM-2015-2021