Phys. Rev. Lett. 79, 1758 - 1761 (1997)Resonant Terahertz Optical Sideband Generation from Confined Magnetoexcitons |
PRL Celebrates 50 Years
This Week's Milestone Letters are from 1984: |
J. Kono1, M. Y. Su2, T. Inoshita1, T. Noda3, M. S. Sherwin2, S. J. Allen, Jr.2, and H. Sakaki1,3
1Quantum Transition Project, Japan Science and Technology Corporation, Tokyo 153, Japan
2Center for Terahertz Science and Technology and Department of Physics, University of California, Santa Barbara, California 93106
3Institute of Industrial Science, University of Tokyo, Tokyo 106, Japan
Received 20 March 1997
We have probed the internal structure and nonlinear response of magnetoexcitons in GaAs/AlGaAs quantum wells by resonantly driving one- and two-photon internal transitions with intense terahertz electric fields. Strong near-band-gap emission lines, or optical sidebands, appear at frequencies ωNIR±2nωTHz, where ωNIR is the interband exciton-creation frequency, ωTHz is the frequency of the driving field, and n is an integer. The intensity of the sidebands exhibits pronounced enhancement when ωTHz coincides with transitions between magnetically tuned energy levels in the excitons, providing new and accurate information on the internal dynamics of excitons.
©1997 The American Physical Society
URL: http://link.aps.org/abstract/PRL/v79/p1758
DOI: 10.1103/PhysRevLett.79.1758
PACS: 78.20.Jq, 78.20.Ls, 78.66.-w
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