Optical black hole lasers

Daniele Faccio*, Tal Arane, Marco Lamperti, Ulf Leonhardt

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)

Abstract

Using numerical simulations we show how to realize an optical black hole laser, i.e. an amplifier formed by travelling refractive index perturbations arranged so as to trap light between a white and a black hole horizons. The simulations highlight the main features of these lasers: the growth inside the cavity of positive and negative frequency modes accompanied by a weaker emission of modes that occurs in periodic bursts corresponding to the cavity round trips of the trapped modes. We then highlight a new regime in which the trapped mode spectra broaden until the zero-frequency points on the dispersion curve are reached. Amplification at the horizon is highest for zero-frequencies, therefore leading to a strong modification of the structure of the trapped light. For sufficiently long propagation times, lasing ensues only at the zero-frequency modes.

Original languageEnglish
Article number224009
Number of pages12
JournalClassical and Quantum Gravity
Volume29
Issue number22
DOIs
Publication statusPublished - 21 Nov 2012

Keywords

  • RELATIVITY THEORY
  • ANALOG
  • PROPAGATION
  • GRAVITY

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