Specific recording kinetics as a general property of unconventional photorefractive media

Autor(en): Fally, M
Imlau, M 
Rupp, RA
Ellabban, MA
Woike, T
Stichwörter: CDF2-GA; CRYSTALS; DX CENTERS; GARNET; GRATINGS; HOLOGRAPHIC SCATTERING; INFRARED SPECTRAL RANGE; METASTABLE ELECTRONIC STATES; Physics; Physics, Multidisciplinary
Erscheinungsdatum: 2004
Herausgeber: AMERICAN PHYSICAL SOC
Enthalten in: PHYSICAL REVIEW LETTERS
Band: 93
Ausgabe: 24
Zusammenfassung: 
We introduce a model for the kinetics of grating formation during holographic recording in optically excitable two-state systems. An unexpected characteristic time dependence of the diffraction efficiency is found. We show that it originates from a nonlinear transformation of the light interference pattern into a refractive-index profile. Our findings strongly resemble and explain by nature the experimental data of two-state systems in general, here represented by two examples: sodium nitroprusside and terbium gallium garnet.
ISSN: 00319007
DOI: 10.1103/PhysRevLett.93.243903

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