Collapse of minibands in far-infrared irradiated superlattices
- 13 July 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 69 (2), 351-354
- https://doi.org/10.1103/physrevlett.69.351
Abstract
Quasienergy minibands in superlattices which interact with intense far-infrared laser radiation collapse under conditions that are experimentally accessible. In particular, it is shown that the miniband width becomes close to, but not identical to, zero if the ratio of the Bloch frequency and the laser frequency approaches a zero of the Bessel function .
Keywords
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