Highly effective dynamic holographic gratings in doped bismuth titanate crystals and applications to metrology

George E. Dovgalenko; Ying Wu

doi:10.1117/12.820529

19 May 2009 Highly effective dynamic holographic gratings in doped bismuth titanate crystals and applications to metrology

George E. Dovgalenko, Ying Wu

Author Affiliations +

Proceedings Volume 7358, Holography: Advances and Modern Trends; 73580P (2009) https://doi.org/10.1117/12.820529
Event: SPIE Optics + Optoelectronics, 2009, Prague, Czech Republic

Abstract

Highly efficient volume reflective, dynamical holographic gratings in doped Ti₁₂TiO₂₀ crystals have been observed. We demonstrated doped Ti₁₂TiO₂₀ single, electro-optical crystal and experimental set up, which combines high reversibility, small response time, high diffraction efficiency and practically unlimited number of cycles hologram recording, readout and erasing. It allows using doped Ti₁₂TiO₂₀ crystal as an attractive diffractive optical element in Dynamical Holographic Sensor -DHS for metrology applications. The high image contrast of the real time dynamical holographic interferograms without application of external electric field has been obtained for non transparent diffuse reflective objects using commercial available CW He-Ne laser. DHS applications for nondestructive test of the most vital parts engineering constructions to prevent premature failure have has been demonstrated. DHS application for visualization of cryogenic fields in the near zone of cryoultrasonic cancer tissue destructor has been presented.

Citation Download Citation

George E. Dovgalenko and Ying Wu "Highly effective dynamic holographic gratings in doped bismuth titanate crystals and applications to metrology", Proc. SPIE 7358, Holography: Advances and Modern Trends, 73580P (19 May 2009); https://doi.org/10.1117/12.820529

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