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Proceedings Article

Molecular to material design for anomalous-dispersion phase-matched second-harmonic generation

[+] Author Affiliations
Paul A. Cahill, David R. Tallant

Sandia National Labs. (USA)

Tony C. Kowalczyk, Kenneth D. Singer

Case Western Reserve Univ. (USA)

Proc. SPIE 1560, Nonlinear Optical Properties of Organic Materials IV, 130 (December 1, 1991); doi:10.1117/12.50712
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From Conference Volume 1560

  • Nonlinear Optical Properties of Organic Materials IV
  • Kenneth D. Singer
  • San Diego, CA | July 21, 1991

abstract

Anomalous-dispersion phase-matching (ADPM) offers large enhancements in the effective hyperpolarizabilities of nonlinear optical processes such as second harmonic generation (SHG) in organic materials. The principal barrier to the practical application of this approach is the residual absorption of asymmetric organic chromophores at the second harmonic which is shown by calculation to inherently limit the efficiency of SHG. Resonance Raman experiments on a nonlinear optical (NLO) dye optimized for doubling 800 nm light indicate that the residual absorbance is probably due to vibronic levels associated with the electronic absorption. Recent work with thin films of PMMA doped with this ADPM dye showed zero dispersion at approximately 6% concentration.

© (1991) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Paul A. Cahill ; David R. Tallant ; Tony C. Kowalczyk and Kenneth D. Singer
"Molecular to material design for anomalous-dispersion phase-matched second-harmonic generation", Proc. SPIE 1560, Nonlinear Optical Properties of Organic Materials IV, 130 (December 1, 1991); doi:10.1117/12.50712; http://dx.doi.org/10.1117/12.50712


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