Nonlinear Bragg mirror made from a silicon phthalocyanine/methyl methacrylate copolymer

Robert A Norwood, D. Swanson, R. Spitzer, J. R. Sounik, D. Holcomb, G. Hansen, J. Popolo

Research output: Contribution to journalArticle

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Abstract

A nonlinear Bragg mirror based on saturably absorbing nonlinear-optical polymers is proposed and demonstrated. The saturable absorber is a copolymer of silicon phthalocyanine with methyl methacrylate, which exhibits its largest nonlinear absorption near 670 nm. A 23-layer stack was made by spin coating, with polymethyl methacrylate as the low-index layer, and the linear-optical performance was found to agree reasonably well with predictions based on a modified two-level model of the optical properties of the copolymer. Optical limiting at an intensity of 5-10 MW/cm2 was demonstrated for 6-ns pulses at a wavelength of 688 nm.

Original languageEnglish (US)
Pages (from-to)577-579
Number of pages3
JournalOptics Letters
Volume17
Issue number8
DOIs
StatePublished - Apr 15 1992
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Norwood, R. A., Swanson, D., Spitzer, R., Sounik, J. R., Holcomb, D., Hansen, G., & Popolo, J. (1992). Nonlinear Bragg mirror made from a silicon phthalocyanine/methyl methacrylate copolymer. Optics Letters, 17(8), 577-579. https://doi.org/10.1364/OL.17.000577