24 April 1995 Ultrafast hole tunneling in asymmetric double quantum wells
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Abstract
We present the results of an experimental study of tunneling in Asymmetric Double Quantum Well (ADQW) structures for which holes were found to tunnel from the narrow well to the wide well on sub-picosecond time-scales. These times are as fast, or faster than electron tunneling times despite the absence of resonances between hole states. Valence band structure calculations for our ADQW structures indicate that ultrafast hole tunneling can be attributed spin-dependent delocalization of the hole wavefunctions with a concomitant singularity (in principle) in the density of final wide well states.
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Mark F. Krol, Mark F. Krol, Sergey Yu. Ten, Sergey Yu. Ten, Brian P. McGinnis, Brian P. McGinnis, Michael J. Hayduk, Michael J. Hayduk, Galina Khitrova, Galina Khitrova, Nasser Peyghambarian, Nasser Peyghambarian, } "Ultrafast hole tunneling in asymmetric double quantum wells", Proc. SPIE 2397, Optoelectronic Integrated Circuit Materials, Physics, and Devices, (24 April 1995); doi: 10.1117/12.206887; https://doi.org/10.1117/12.206887
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