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 language||English (US)|
|Number of pages||5|
|Journal||Applied Physics A: Materials Science and Processing|
|State||Published - Aug 1 2007|
All Science Journal Classification (ASJC) codes
- Materials Science(all)