Speckle Pattern Vibration Detection Using Transverse Photocurrent in Bi12TiO20 and ZnSe Crystals

I. Rocha-Mendoza; A. V. Khomenko; C. A. Fuentes-Hernández

doi:10.1364/PEMD.2001.305

Photorefractive Effects, Materials, and Devices
OSA Trends in Optics and Photonics (Optica Publishing Group, 2001),
paper 305
•https://doi.org/10.1364/PEMD.2001.305

Speckle Pattern Vibration Detection Using Transverse Photocurrent in Bi₁₂TiO₂₀ and ZnSe Crystals

I. Rocha-Mendoza, A. V. Khomenko, and C. A. Fuentes-Hernández

Photorefractive Effects, Materials, and Devices 2001

Delavan, Wisconsin United States
ISBN: 1-55752-693-1

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I. Rocha-Mendoza, A. V. Khomenko, and C. A. Fuentes-Hernández, "Speckle Pattern Vibration Detection Using Transverse Photocurrent in Bi12TiO20 and ZnSe Crystals," in Photorefractive Effects, Materials, and Devices, G. Salamo and A. Siahmakoun, eds., Vol. 62 of OSA Trends in Optics and Photonics (Optica Publishing Group, 2001), paper 305.

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Abstract

We show that applying a de electric field along the direction of an speckle pattern vibration one can detect an alternating current in transverse direction. We demonstrate the use of the transverse current for adaptive sensing of a rough surface vibration. The experimental results for transverse currents in Bi₁₂TiO₂₀ and ZnSe crystals are presented along with the detailed comparison with the photo-EMF vibration detection using the same crystal samples.

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