Real-time imaging of acoustic rectification

S. Danworaphong*, T. A. Kelf, O. Matsuda, M. Tomoda, Y. Tanaka, N. Nishiguchi, O. B. Wright, Y. Nishijima, K. Ueno, S. Juodkazis, H. Misawa

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)


We image gigahertz surface acoustic waves normally incident on a microscopic linear array of triangular holes-a generic acoustic diode geometry-with a real-time ultrafast optical technique. Spatiotemporal Fourier transforms reveal wave diffraction orders in k-space. Squared amplitude reflection and transmission coefficients for incidence on both sides of the array are evaluated and compared with numerical simulations. We thereby directly demonstrate acoustic rectification with an asymmetric structure.

Original languageEnglish
Article number201910
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Issue number20
Publication statusPublished - 14 Nov 2011


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