Prospects for ultrafast optical control of coherent charge oscillations in semiconductors

Andrew M. Weiner; Sang-Gyu Park

doi:10.1117/12.219569

15 September 1995 Prospects for ultrafast optical control of coherent charge oscillations in semiconductors

Andrew M. Weiner, Sang-Gyu Park

Proceedings Volume 2524, National Science Foundation (NSF) Forum on Optical Science and Engineering; (1995) https://doi.org/10.1117/12.219569
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

Considerable interest has arisen recently in the prospect of using specially crafted ultrashort laser pulses for coherent control of atomic and molecular systems. The aim in these studies is to utilize control over femtosecond optical waveforms as a tool to manipulate constructive and destructive interferences associated with quantum mechanical wave packets motions, which could ultimately lead to optical manipulation of chemical reactions and in the shorter term should make possible preparation of well-defined quantum mechancial states for precise spectroscopic determination of molecular Hamiltonians. At Purdue we have initiated a project aimed at applying these coherent control concepts in a new setting--namely, in specially designed layered semiconductor materials. A key motivation for using layered semiconductors as a coherent control laboratory is the ability to engineer the Hamiltonian through the epitaxial growth process, so that one may have better knowledge of and control over the Hamiltonian than one has in studies of complex molecules. Here we review the femtosecond pulse shaping technology crucial for our coherent control studies and discuss our plans and progress in applying pulse shaping to manipulate coherent charge oscillations in double coupled quantum wells and superlattices in the GaAs/GaAlAs material system.

Citation Download Citation

Andrew M. Weiner and Sang-Gyu Park "Prospects for ultrafast optical control of coherent charge oscillations in semiconductors", Proc. SPIE 2524, National Science Foundation (NSF) Forum on Optical Science and Engineering, (15 September 1995); https://doi.org/10.1117/12.219569

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