Frequency-selective excitation of high-wavevector phonons

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 ph...

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Veröffentlicht in:	Applied physics letters 2018-10, Vol.113 (17)
Hauptverfasser:	Teitelbaum, Samuel W., Henighan, Thomas, Liu, Hanzhe, Jiang, Mason P., Kozina, Michael, Zhu, Diling, Chollet, Matthieu, Sato, Takahiro, Glownia, James M., Trigo, Mariano, Reis, David A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied physics Brillouin zones CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS Excitation Fabry-Perot interferometers inelastic scattering MATERIALS SCIENCE optical interference Phonons quantum optics spectrograms ultrafast lasers X-ray diffuse scattering
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