Dynamical bloch band suppression in an optical lattice


Journal Article

Dynamical Bloch band suppression is observed for the first time, using cold sodium atoms in a far detuned standing wave of light. This system has well-defined Bloch bands as its energy spectrum, which are modified dynamically by imposing a strong phase modulation of the standing wave. The atoms are prepared in the lowest band, and the spectrum is mapped out by introducing a weak spectroscopic probe that drives transitions between the modified bands. Dynamical suppression of the bands is observed at a critical value of the modulation strength, and is well supported by a full quantum mechanical analysis that goes beyond the single-band and tight-binding approximations. © 1998 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Madison, KW; Fischer, MC; Diener, RB; Niu, Q; Raizen, MG

Published Date

  • January 1, 1998

Published In

Volume / Issue

  • 81 / 23

Start / End Page

  • 5093 - 5096

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/PhysRevLett.81.5093

Citation Source

  • Scopus