Nature Communications (Jul 2019)

Experimental band structure spectroscopy along a synthetic dimension

  • Avik Dutt,
  • Momchil Minkov,
  • Qian Lin,
  • Luqi Yuan,
  • David A. B. Miller,
  • Shanhui Fan

DOI
https://doi.org/10.1038/s41467-019-11117-9
Journal volume & issue
Vol. 10, no. 1
pp. 1 – 8

Abstract

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Internal degrees of freedom allow to expand the effective dimensionality of a system along “synthetic” dimensions. Here, the authors demonstrate this by modulating a ring resonator at frequencies commensurate with its mode spacing, and are able to directly measure its synthetic band structure.