Highly efficient photorefractive polymers for dynamic holography

Boris L. Volodin, Klaus Meerholz, Bernard Kippelen, Nickolai V. Kukhtarev, Nasser Peyghambarian

Research output: Contribution to journalArticle

99 Scopus citations

Abstract

The performance of recently developed by highly efficient photorefractive polymers based on the photoconducting polymer host poly-(N-vinylcarbazole) is investigated, and the use of these materials as recording media in dynamic holography and other applications is evaluated. A diffraction efficiency η ≈ 86% (limited only by absorption and reflection losses), a two-beam coupling net gain coefficient Γ = 200 cm-1 and light-induced refractive index modulations as high as Δn = 7 × 10-3 are demonstrated. Hologram growth rates of the order of 500 ms are observed with recording light intensities < 10 mW/cm2, using either low-power laser diodes (675 nm) or a HeNe laser (633 nm). The materials show good sensitivity in this part of the spectrum. Applications such as dynamic time-average interferometry are demonstrated.

Original languageEnglish (US)
Pages (from-to)2213-2223
Number of pages11
JournalOptical Engineering
Volume34
Issue number8
DOIs
StatePublished - Jan 1 1995

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering(all)

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