High wavevector optical phonons in microstructured Bismuth films | Zendy

Zhiyuan Chen | Zendy; Brian C. Minch | Zendy; M. F. DeCamp | Zendy

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High wavevector optical phonons in microstructured Bismuth films

Author(s) -

Zhiyuan Chen,

Brian C. Minch,

M. F. DeCamp

Publication year - 2010

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.18.004365

Subject(s) - femtosecond , bismuth , optics , materials science , picosecond , ultrashort pulse , laser , wave vector , phonon , optoelectronics , grating , excitation , physics , condensed matter physics , quantum mechanics , metallurgy

We report the generation of high wavevector, large amplitude coherent optical phonons in a microstructured Bismuth film. A femtosecond laser pulse optically excites a periodic micron scale grating etched into a Bismuth film. The ultrafast excitation produced coherent optical phonon oscillations with wavevectors as large as 1 microm(-1), providing a possible method of generating an efficient sub-picosecond switch for hard x-rays.

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