Sensitivity and fatigue of LiTaO3 for holographic recording | Zendy

J. M. Spinhirne | Zendy; T. L. Estle | Zendy

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Sensitivity and fatigue of LiTaO3 for holographic recording

Author(s) -

J. M. Spinhirne,

T. L. Estle

Publication year - 1974

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.1655269

Subject(s) - erasure , holography , materials science , photorefractive effect , polarization (electrochemistry) , impurity , optics , doping , sensitivity (control systems) , wavelength , power density , crystal (programming language) , optoelectronics , condensed matter physics , power (physics) , chemistry , physics , thermodynamics , organic chemistry , electronic engineering , computer science , programming language , engineering

The sensitivity of LiTaO3 crystals to hologram formation has been observed to vary with impurity concentration. For a writing wavelength of 488.0 nm and power density of 1.1 W/cm2 the sensitivity varied from a value comparable to the most sensitive doped LiNbO3 for an impure crystal to a value more than 5 orders of magnitude smaller for a purer crystal. Fatigue effects were observed upon write‐erase cycling. These effects were dependent upon writing and erasure polarization and power density and could be minimized by proper choice of optical parameters.

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