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Conferences > UP > 2010 > ME > ME39

Quantized Extrinsic Piezoelectricity in Quantum Dots Revealed by Coherent Acoustic Phonons

Pooja Tyagi, Ryan R. Cooney, Samuel L. Sewall, D.M. Sagar, Jonathan I. Saari, and Patanjali Kambhampati

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Abstract

Employing real time observation of coherent acoustic phonons, we demonstrate a novel extrinsic piezoelectric response of quantum dots, that is quantized, tunable and an order of magnitude larger than their intrinsic piezo response.

© 2010 Optical Society of America

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