Frequency-selective excitation of high-wavevector phonons

Samuel W. Teitelbaum, Thomas Henighan, Hanzhe Liu, Mason P. Jiang, Michael Kozina, Diling Zhu, Matthieu Chollet, Takahiro Sato, James M. Glownia, Mariano Trigo, David A. Reis

Research output: Contribution to journalArticlepeer-review

Abstract

We demonstrate the selective excitation of a narrow frequency band of TA phonons throughout the Brillouin zone of germanium using a sinusoidally modulated picosecond laser pulse. The pulse is produced through the combination of two chirped and delayed pulses using a stabilized interferometer. The phonon excitations are probed by time- and momentum- resolved x-ray diffuse scattering.

Original languageEnglish (US)
Article number171901
JournalApplied Physics Letters
Volume113
Issue number17
DOIs
StatePublished - Oct 22 2018
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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