Higher harmonics of Bloch oscillations and their dependence on the excitation conditions

P. Leisching; Y. Dhaibi; P. Haring Bolivar; K. Leo; K. Leo; H. Kurz; K. Kohier; K. Kohier

International Quantum Electronics Conference
OSA Technical Digest (Optica Publishing Group, 1994),
paper QMC2

Higher harmonics of Bloch oscillations and their dependence on the excitation conditions

P. Leisching, Y. Dhaibi, P. Haring Bolivar, K. Leo, H. Kurz, and K. Kohier

International Quantum Electronics Conference 1994

Anaheim, California United States
8–13 May 1994
ISBN: 1-55752-342-8

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Coherent Dynamics (QMC)

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P. Leisching, Y. Dhaibi, P. H. Bolivar, K. Leo, H. Kurz, and K. Kohier, "Higher harmonics of Bloch oscillations and their dependence on the excitation conditions," in International Quantum Electronics Conference, J. Shah, C. Weiman, R. Freman, and J. Fujimoto, eds., Vol. 9 of OSA Technical Digest (Optica Publishing Group, 1994), paper QMC2.

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Abstract

Bloch oscillations of an electronic wave-packet in a homogeneous electric field have been observed in GaAs/AlGaAs superlattices by four-wave-mixing (FWM) and THz-emission experiments.¹ We discuss the dependence of the coherent dynamic of the oscillating wavepacket on the excitation conditions and in detail the existence of higher harmonics in the oscillation. For the case of experimentally inaccessible excitation conditions, i.e., a wavepacket centered in only one well at the beginning, theoretical calculations predicted the existence of Bloch oscillation overtones.²

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