Ultrafast acoustics in the middle UV range: Coherent phonons at higher frequencies and in smaller objects

S. Ayrinhac, A. Devos, A. Le Louarn, P. A. Mante, P. Emery

Research output: Journal article publicationJournal articleAcademic researchpeer-review

4 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)3510-3512
Number of pages3
JournalOptics Letters
Volume35
Issue number20
DOIs
Publication statusPublished - 15 Oct 2010
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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