Optical properties of the vacuum-ultraviolet nonlinear optical crystal-BPO4

Studies on the linear and nonlinear optical properties of the BPO4 crystal have been carried out experimentally. The transmittance spectra in the vacuum-ultraviolet and near-infrared spectral regions were obtained, showing a transparency in the range from 134 to 4230nm. The refractive indices were accurately measured at 12 wavelengths from 0.2537 to 1.530 mu m and the Sellmeier equations constructed. Moreover, the nonlinear optical coefficients of the BPO4 crystal were measured with the Maker fringes technique, which gave a result of d(36) 0.76pm/V. (C) 2011 Optical Society of America