Utilization of photorefractive crystals for holographic double-exposure interferometry with nanosecond laser pulses

Rickermann, F.; Riehemann, S.; Bally, Gert von

doi:10.1016/s0030-4018(98)00357-5

Cited by 11 publications

(5 citation statements)

References 27 publications

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“…This disadvantage can be overcome by adopting a pulsed laser instead of a CW laser. Labrunie et al [20,21] used a Bi 12 GeO 20 crystal and a ruby pulsed laser while Huignard et a., [22] and Rickermann et al, [23] introduced a pulsed laser and the doubleexposure holographic interferometric technique to obtain interferograms to measure the vibration.…”

Section: Introductionmentioning

confidence: 99%

Photorefractive crystal-based holographic interferometry system for full-field wave propagation metrology

Liou

Lee

2007

Opt. Express

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Although, photorefractive materials have been discovered for many years, research using pulsed laser as the light source and photorefractive material as the recording media to record a pulsed laser hologram have been scarce despite its vast application potential. A newly proposed optical configuration which adopts a Nd:YAG pulsed laser of 532nm wavelength as the light source and uses an iron-doped lithium niobate crystal as the recording media for holographic recording of an undeformed specimen is presented. Real-time holographic interferometry was achieved by inducing repetitive impacts on the specimen through a precise piezoelectric impact hammer.With timing control better than microseconds, several interferograms created at each instance were obtained with each corresponding 9ns laser pulse. A five-step phase-shifting technology, median filter algorithm, and weighted iterative DFT phase unwrap algorithm were integrated to reconstruct the deformation information at each instance. Using a series of measured deformation data, surface wave propagation phenomenon on the specimen could be observed. Some of the potential applications for this newly developed pulsed laser holographic interferometry system are detailed.

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Section: Introductionmentioning

confidence: 99%

Photorefractive crystal-based holographic interferometry system for full-field wave propagation metrology

Liou

Lee

2007

Opt. Express

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“…Although, in some demonstrations, double exposure holographic interferometry is achieved through the recording of two successive holograms [7,8], in most systems a real-time configuration is preferred. Indeed, recording two successive holograms first requires a precise recording schedule to equalize the diffraction efficiencies of both holograms, and second decreases the diffraction efficiencies of each hologram.…”

Section: Introductionmentioning

confidence: 99%

“…Such spatial phase shifting schemes were proposed and demonstrated either in a real time configuration [10] or in a double hologram recording scheme [7]. In both cases, the carrier fringes were introduced in the interferogram by moving a mechanical component, lens or mirror.…”

Section: Introductionmentioning

confidence: 99%

Passive introduction of carrier fringes in real-time photorefractive interferometers for single interferogram analysis

Pauliat¹,

Roosen²,

Georges³

et al. 2006

JEOS:RP

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We propose a new technique to introduce carrier fringes in an holographic interferometric setup for deformation or vibration analyses. This technique makes use of the anisotropic diffraction processes of photorefractive crystals. The main advantage of the proposed technique is that it just involves static components, no moving parts or active components are required. This technique is demonstrated in a real-time interferometric setup operating at the wavelength of 1.06 µm and with a GaAs photorefractive crystal as the holographic medium.

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“…Photorefractive materials are attractive recyclable holographic media for holographic interferometry. [1][2][3][4][5][6][7][8][9][10] The holograms automatically self-develop in these indefinitely reusable materials. Most of the experiments are conducted in a real-time configuration, which is one of the simplest configurations.…”

Section: Introductionmentioning

confidence: 99%

Continuous monitoring of a surface slope by real-time shearing interferometry with a photorefractive crystal

Pauliat

Roosen

2006

Appl. Opt.

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Utilization of photorefractive crystals for holographic double-exposure interferometry with nanosecond laser pulses

Cited by 11 publications

References 27 publications

Photorefractive crystal-based holographic interferometry system for full-field wave propagation metrology

Photorefractive crystal-based holographic interferometry system for full-field wave propagation metrology

Passive introduction of carrier fringes in real-time photorefractive interferometers for single interferogram analysis

Continuous monitoring of a surface slope by real-time shearing interferometry with a photorefractive crystal

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