Ultrafast acoustics in the middle UV range: coherent phonons at higher frequencies and in smaller objects
Optics Letters, Vol. 35, Issue 20, pp. 3510-3512 (2010)
http://dx.doi.org/10.1364/OL.35.003510
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Abstract
We show that the propagation of coherent acoustic phonons generated by femtosecond optical excitation can be clearly resolved using a probe laser in the middle UV (MUV) range. The MUV probe is easily produced from a high-repetition-rate femtosecond laser and a homemade frequency tripler. We present various experimental results that demonstrate efficient and high frequency detection of acoustic phonons. Thus, we show that the MUV range offers a unique way to reach higher frequencies and probe smaller objects in ultrafast acoustics.
© 2010 Optical Society of America
OCIS Codes
(260.7190) Physical optics : Ultraviolet
(300.6500) Spectroscopy : Spectroscopy, time-resolved
(320.5390) Ultrafast optics : Picosecond phenomena
(110.5125) Imaging systems : Photoacoustics
ToC Category:
Ultrafast Optics
History
Original Manuscript: June 7, 2010
Manuscript Accepted: September 9, 2010
Published: October 15, 2010
Citation
S. Ayrinhac, A. Devos, A. Le Louarn, P.-A. Mante, and P. Emery, "Ultrafast acoustics in the middle UV range: coherent phonons at higher frequencies and in smaller objects," Opt. Lett. 35, 3510-3512 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-20-3510
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