Diffraction efficiency of a dynamic hologram in a reversible photochromic medium with allowance for diffusion of photochromic particles

Autor: V. V. Ivakhnik, V. I. Nikonov
Rok vydání: 2003
Předmět:
Zdroj: Optics and Spectroscopy. 94:124-128
ISSN: 1562-6911
0030-400X
DOI: 10.1134/1.1540213
Popis: Spatial resolution of a dynamic hologram in a reversible photochromic medium is analyzed, with allowance made for diffusion of photochromic particles. It is shown that the bandwidth of spatial frequencies of a thin hologram decreases over time, approaching the value determined by the diffusion coefficient and the hologram recording/erasing time. The optimum relationship between the intensity of the beam that records the volume hologram and the parameters of the photochromic particles is found for which the difference between the limiting value of the bandwidth of spatial frequencies of the volume hologram and the value of the band-width of spatial frequencies of a thin hologram located in the plane z=0 is the greatest.
Databáze: OpenAIRE