Journal ArticleDOI
Speckle metrology with novelty filtering using photorefractive two-beam coupling in BaTiO3 crystal
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TLDR
In this paper, two-beam coupling in BaTiO 3 crystal is suggested for the tracking novelty filtering in speckle metrology and two schemes are discussed: one for point measurement of displacement and another for full-field display.About:
This article is published in Optics Communications.The article was published on 1993-07-01. It has received 21 citations till now. The article focuses on the topics: Speckle pattern & Metrology.read more
Citations
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Journal ArticleDOI
Photorefractive phase-conjugate optics for image processing, trapping, and manipulation of microscopic objects
TL;DR: Optical phase conjugation using photorefractive materials can be readily integrated with laser microscopy and interferometry for image processing, trapping, and manipulation of microscopic objects as discussed by the authors.
Journal ArticleDOI
Optical operations based on speckle modulation by using a photorefractive crystal
TL;DR: In this paper, an image multiplexing technique based on the internal modulation of speckle grains by using different multiple aperture pupils during exposure is proposed, where a BSO crystal is employed as the recording medium.
Journal ArticleDOI
Three-dimensional displacement measurement using chirp modulation in a photorefractive correlator
TL;DR: In this article, a speckle correlation technique based on chirp modulation of the interference pattern is proposed and demonstrated for the measurement of 3-D rigid body motion, which is a con- sequence of the out-of-plane displacement component associated with object motion.
Journal ArticleDOI
Real-time speckle photography with two-wave mixing in photorefractive BaTi03 crystals
TL;DR: In this paper, a two-beam coupled photorefractive novelty filter is presented for real-time measurement of displacement components, where the BaTiO3 crystal is oriented such that the spatial phase shift between the dynamic grating and the interference pattern is + 'rr/2.
Journal ArticleDOI
In-plane displacement measurement using objective speckles in photorefractive two-beam coupling: effect of multiple exposures
TL;DR: In this article, a technique for the real-time measurement of in-plane displacement utilizing objective speckles and two-beam coupling in a photorefractive BaTiO3 crystal is proposed.
References
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Journal ArticleDOI
Two-wave mixing and energy transfer in Bi(12) SiO(20) crystals: application to image amplification and vibration analysis.
TL;DR: The related energy transfer and stationary image amplification permit the mode pattern visualization of a vibrating structure in photorefractive BSO crystals to be applied to a real-time optical-processing operation.
Journal ArticleDOI
Photorefractive time differentiation of coherent optical images.
TL;DR: Two-beam coupling in photorefractive BaTiO(3) is used to perform time differentiation of time-varying coherent phase and amplitude images.
Journal ArticleDOI
Coherent CW image amplifier and oscillator using two-wave interaction in a BaTiO3-crystal
TL;DR: In this article, a BaTiO 3 crystal was used to amplify an image illuminated by an Ar-laser and achieved gain factor of 4000 with pump powers of 150 mW and holographic resolution.
Journal ArticleDOI
Application of phase conjugation in Bi12Si O20 crystals to mode pattern visualisation of diffuse vibrating structures
TL;DR: In this article, the dynamic holographic recording and phase conjugation of 3D diffuse objects in photorefractive B.S.O. crystals are analyzed and applied to mode pattern visualisation of a vibrating loudspeaker membrane.
Journal ArticleDOI
Holographic interferometry using anisotropic self-diffraction in Bi(12)SiO(20).
R. C. Troth,J. C. Dainty +1 more
TL;DR: In this paper, anisotropic self-diffraction in photorefractive Bi12SiO20 crystals is applied to the investigation of dynamic holographic recording through the diffusion process.