Dynamic optical gratings in two layer system: ferroelectric and nanostructured metal film

N. Kukhtarev; T. Kukhtareva; G. Stargell

doi:10.1117/12.783025

21 April 2008 Dynamic optical gratings in two layer system: ferroelectric and nanostructured metal film

N. Kukhtarev, T. Kukhtareva, G. Stargell

Proceedings Volume 6989, Photonic Crystal Materials and Devices VIII; 698913 (2008) https://doi.org/10.1117/12.783025
Event: SPIE Photonics Europe, 2008, Strasbourg, France

Abstract

Dynamic reflection gratings, recorded by the single laser beam in ferroelectric crystals covered by nano-structured golden film generate optical and electrical pulsations. Frequency and amplitude of pulsations depend on laser intensity, the ambient pressure and temperature. Model explaining pulsations are developed based on the photogalvanic and pyroelectric mechanisms of holographic grating recording. Possible applications for the remote pressure and temperature sensing are discussed. Golden nanostructured film increase significantly sensitivity of the crystal pulsations to laser intensity, temperature and pressure. For a focused HeNe laser beam (intensity about 160mW/cm²) an interesting phenomenon (deserving special considerations) of self-phase conjugation was observed.

Citation Download Citation

N. Kukhtarev, T. Kukhtareva, and G. Stargell "Dynamic optical gratings in two layer system: ferroelectric and nanostructured metal film", Proc. SPIE 6989, Photonic Crystal Materials and Devices VIII, 698913 (21 April 2008); https://doi.org/10.1117/12.783025

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