Nonlinear disordered media for broad-band optical limiting

Lukasz Brzozowski, Edward H. Sargent

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

We analyze broad-band limiting behavior in non-linear structures that are, on average, periodic. Introduction of a controlled degree of randomness in layer thickness results in widening of the stopband. Light at all of the frequencies in this broadened effective stopband of the structure with randomly perturbed layer thicknesses exhibits true optical limiting - clamping of the transmitted intensity below a fixed level independent of incident intensity. We explore the impact of the degree of randomization and the strength of the nonlinear mechanism on the smoothness and regularity of the limiting spectrum and on the localization of the light within these cyclostationary media. Optical limiting in integrable devices is of interest in optical logic, signal processing, and personnel and sensor protection.

Original languageEnglish (US)
Pages (from-to)1237-1242
Number of pages6
JournalIEEE Journal of Quantum Electronics
Volume36
Issue number11
DOIs
StatePublished - Nov 2000

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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