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Coherent control of acoustic phonons in semiconductor superlattices

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4 Author(s)
Dekorsy, T. ; Inst. fur Halbleitertech. II, Rheinisch-Westfalisches Technische Hochschule, Aachen, Germany ; Bartels, A. ; Kurz, H. ; Kohler, K.

Summary form only given.We report on experiments demonstrating the complete quenching of the first-order coherent amplitude by carefully adjusting the laser intensities with respect to the resonant excitation mechanism. The experiments are performed with 50-fs laser pulses derived from a Kerr-lens modelocked Ti:sapphire laser resonantly tuned to the first electron heavy-hole interband resonance of the superlattices. The coherently excited phonon modes are detected in time resolved reflectivity and transmission changes recorded with a fast-scanning delay generator.

Published in:

Quantum Electronics Conference, 1998. IQEC 98. Technical Digest. Summaries of papers presented at the International

Date of Conference:

8-8 May 1998