21 April 2008 Dynamic optical gratings in two layer system: ferroelectric and nanostructured metal film
Author Affiliations +
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.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
N. Kukhtarev, N. Kukhtarev, T. Kukhtareva, T. Kukhtareva, G. Stargell, 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); doi: 10.1117/12.783025; https://doi.org/10.1117/12.783025
PROCEEDINGS
11 PAGES


SHARE
Back to Top