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Polarization revival of a Bloch-oscillating wave packet in conjunction with resonant Zener tunneling

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Meinhold,  D.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Zhang,  J. Z.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Leo,  K.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Meinhold, D., Rosam, B., Löser, F., Lyssenko, V. G., Rossi, F., Zhang, J. Z., et al. (2002). Polarization revival of a Bloch-oscillating wave packet in conjunction with resonant Zener tunneling. Physical Review B, 65(11): 113302. Retrieved from http://ojps.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PRBMDO000065000011113302000001&idtype=cvips&gifs=yes&jsessionid=2518921055255386405.


Cite as: https://hdl.handle.net/11858/00-001M-0000-002B-37DA-7
Abstract
We investigate the dynamics of a Bloch-oscillating wave packet in the presence of strong coupling to delocalized above barrier states (Zener tunneling), using time-resolved intraband polarization-sensitive measurements. At a threshold electric field, the resonance of localized and delocalized states causes a quantum beating which is observed as a revival in the intraband polarization. Our numerical simulation visualizes the spatial wave packet decomposition and reformation. The wave packet moves on a ps time scale over a distance of more than 100 nm and sequentially undergoes Bloch oscillations in the below- and above-barrier bands.