Phonon lifetimes in silicon from 50 GHz to 15 THz - University of ...

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Experimental studies of silicon phonon lifetimes at room temperature • Attenuation of 50-100 GHz longitudinal acoustic phonons measured by picosecond acoustics. –PRB 80, 174112 (2009). • Thermal acoustic phonons (1-10 10 THz) and reduction of thermal conductivity by mass disorder. –PRB 71, 235202 (2005); JAP 104, 024905 (2008). • Lifetimes of 15 THz optical phonons by timeresolved incoherent anti-Stokes Raman scattering. – APL 90, 252104 (2007).
Si phonon dispersion high-field carrier mobility, hot carrier photovoltaics Thermal management, heat conduction acoustic imaging, “phononics”
Page 1: Phonon lifetimes in silicon from 50
Page 5 and 6: Time domain thermoreflectance and p
Page 7 and 8: Broadband acoustic pulses • Fouri
Page 9 and 10: f
Page 11 and 12: Dilute SiGe alloys grown by gas-sou
Page 13 and 14: Pump-probe Raman spectrometer
Page 15 and 16: Time-resolved anti-Stokes intensiti
Page 17: Summary • Lifetime of 100 GHz lon

Phonon lifetimes in silicon from 50 GHz to 15 THz - University of ...

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