Watching Ripples on Crystals
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概要
- 論文の詳細を見る
We present a new method for imaging surface phonon focusing and dispersion at frequencies up to1 GHz that makes use of ultrafast optical excitation and detection. Animations of coherent surfacephonon wave packets emanating from a point source on isotropic and anisotropic solids are obtainedwith micron lateral resolution. We resolve rounded-square shaped wave fronts on the (100) plane of LiFand discover isolated pockets of pseudosurface wave propagation with exceptionally high group velocityin the (001) plane of TeO2. Surface phonon refraction and concentration in a minute gold pyramid isalso revealed.
- American Physical Societyの論文
- 2002-04-18
著者
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Wright O.
Division Of Applied Physics Graduate School Of Engineering Hokkaido University
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MATSUDA O.
Division of Applied Physics, Graduate School of Engineering, Hokkaido University
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Matsuda O
Division Of Applied Physics Graduate School Of Engineering Hokkaido University
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