Imbrock J, Kip D, Krätzig E
Opt Lett. 1999 Sep 15;24(18):1302-4. doi: 10.1364/ol.24.001302.
Holograms have been recorded in congruent LiTaO(3):Fe with continuous-wave laser light by use of a two-step process. Blue gating light (lambda=488 nm) sensitizes the crystals for holographic recording with red light (lambda=660 nm) of a diode laser. Refractive-index changes of as much as 1.0x10(-5) are achieved for intensities of the red light of 1 W/cm(2) . The saturation values are proportional to the intensity of the writing light. Nondestructive readout with red light is possible, and the holograms remain erasable for blue light.
利用两步法，通过连续波激光在同成分的钽酸锂（LiTaO₃）:铁中记录全息图。蓝色选通光（λ = 488纳米）使晶体对二极管激光器的红光（λ = 660纳米）进行全息记录变得敏感。对于1瓦/平方厘米的红光强度，折射率变化可达1.0×10⁻⁵。饱和值与写入光的强度成正比。用红光进行无损读出是可行的，并且全息图对于蓝光仍可擦除。
