Nonlinear optical characterization of LaEr(MoO4)3 thin films using the Z-scan technique

U. Gurudas, D. M. Bubb

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The nonlinear optical properties of thin films of LaEr(MoO 4)3 were studied using a ∼ 30 ps Nd:YAG laser at 532 nm with a repetition rate of 250 Hz. Closed aperture Z-scan measurement revealed a negative nonlinearity in the LaEr(MoO4)3. The nonlinear refractive index γ=1.38×10-10 cm2/W and nonlinear absorption coefficient β=16.8×10-6 cm/W were calculated from the Z-scan data. The fluorescent upconversion spectra were recorded with 980 nm excitation. An optical switching mechanism based on nonlinear absorption is also presented experimentally.

Original languageEnglish (US)
Pages (from-to)255-259
Number of pages5
JournalApplied Physics A: Materials Science and Processing
Issue number2
Publication statusPublished - Aug 1 2007


All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)

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