We report the nonvolatile holographic recording in the Ru and Fe doped LiNbO3 crystal. The nonvolatile hologram can be recorded at a wavelength of 632.8 nm when the gating beam (blue light) is simultaneously incident on the crystal. The recorded hologram can be successfully fixed and transformed into a nonvolatile hologram keeping the hologram strength almost unchanged. The recording sensitivity and dynamic range increase with the increase of the Fe concentration. The sensitivity of 0.12 cm/J and the dynamic range of 0.53 are obtained at the 0.5-mm-thick sample.
© 2005 Optical Society of America
R. Fujimura, T. Shimura, and K. Kuroda, "Recording properties of the nonvolatile hologram in Ru and Fe doped LiNbO3 crystal," in Photorefractive Effects, Materials, and Devices, G. Zhang, D. Kip, D. Nolte, and J. Xu, eds., Vol. 99 of OSA Trends in Optics and Photonics (Optical Society of America, 2005), paper 582.