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High-amplitude THz and GHz Strain Waves, Generated by Ultrafast Screening of Piezoelectric Fields in InGaN/GaN Multiple Quantum Wells

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Screening of large built-in piezoelectric fields in InGaN/GaN quantum wells leads to high-amplitude acoustic emission. We will compare acoustic emission by quantum wells with different thicknesses with photoluminescence; indicating screening.

© 2010 Optical Society of America

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