Phonon lifetimes in silicon from 50 GHz to 15 THz - University of ...
Phonon lifetimes in silicon from 50 GHz to 15 THz - University of ...
Phonon lifetimes in silicon from 50 GHz to 15 THz - University of ...
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Time doma<strong>in</strong> thermoreflectance and<br />
picosecond acoustics<br />
• Improved optical design<br />
• Normalization by out-<strong>of</strong>-phase <strong>of</strong> signal elim<strong>in</strong>ates artifacts,<br />
<strong>in</strong>creases dynamic range and<br />
improves sensitivity<br />
• Exact analytical model for<br />
Gaussian beams and arbitrary<br />
layered geometries<br />
• One-laser/two-color approach<br />
<strong>to</strong>lerates diffuse scatter<strong>in</strong>g<br />
Clone built at Fraunh<strong>of</strong>er Institute for<br />
Physical Measurement, Jan. 7-8 2008
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