Wave-front reconstruction from multidirectional phase derivatives generated by multilateral shearing interferometers

Velghe, Sabrina; Primot, Jérôme; Guérineau, Nicolas; Cohen, Mathieu; Wattellier, Benoît

doi:10.1364/ol.30.000245

Cited by 123 publications

(63 citation statements)

References 17 publications

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“…The beam was then reflected off an uncoated wedge to further attenuate the beam energy. We used a four-wave shearing interferometer device (SID4, Phasics Inc.) as the wavefront sensor to measure the wavefront [19]. The SID4 was placed after the focus to measure the aberration from the entire system, including that from the parabolic mirror.…”

Section: Methodsmentioning

confidence: 99%

Wavefront-correction for nearly diffraction-limited focusing of dual-color laser beams to high intensities

Zhao¹,

Zhang²,

Chen³

et al. 2014

Opt. Express

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Section: Methodsmentioning

confidence: 99%

Wavefront-correction for nearly diffraction-limited focusing of dual-color laser beams to high intensities

Zhao¹,

Zhang²,

Chen³

et al. 2014

Opt. Express

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“…The wavefront sensor used to measure the radius of curvature was located ~ 5 cm upstream of the image focus. The wavefront was measured using a lateral shearing interferometer, SID4, manufactured by Phasics [13,14]. The SID4 wavefront sensor includes a 2D diffraction grating that splits the incident beam into four identical beams.…”

Section: Methodsmentioning

confidence: 99%

Wavefront Measurement for Laser-Guiding Diagnostic

Shiraishi¹,

Gonsalves²,

Lin³

et al. 2010

AIP Conference Proceedings

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Abstract. The wavefront of a short laser pulse after interaction in a laser-plasma accelerator (LPA) was measured to diagnose laser-guiding quality. Experiments were performed on a 100 TW class laser at the LOASIS facility of LBNL using a hydrogenfilled capillary discharge waveguide. Laser-guiding with a pre-formed plasma channel allows the laser pulse to propagate over many Rayleigh lengths at high intensity and is crucial to accelerate electrons to the highest possible energy. Efficient coupling of laser energy into the plasma is realized when the laser and the channel satisfy a matched guiding condition, in which the wavefront remains flat within the channel. Using a wavefront sensor, the laser-guiding quality was diagnosed based on the wavefront of the laser pulse exiting the plasma channel. This wavefront diagnostic will contribute to achieving controlled, matched guiding in future experiments.

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“…Also a pair of orthogonal gratings can produce separated sets of interferograms that can be analyzed by using multiple detectors [7]. Multiorder gratings divide wavefronts into several replicas that simultaneously overlap [8].…”

Section: Integrated Diffractive Shearingmentioning

confidence: 99%

Integrated diffractive shearing interferometry for adaptive wavefront sensing

2008

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We present theory, design, and preliminary experimental studies for a compact wavefront sensor based on lateral shearing interferometry using a binary phase grating, image sensor, and Fourier-based processing. The integrated system places a diffractive element directly onto an image sensor to generate interference fringes within overlapping diffraction orders. The shearing ratio and the interferogram signal-to-noise ratio directly affect the reconstruction accuracy of wavefronts with differing spatial variations. Optimal shearing parameters associated with the autocorrelation of the input encourage placing a spatial light modulator as the diffractive element allowing adaptive wavefront sensing. Experimental results from a fixed-grating system are presented as well as requirements for next-generation adaptive systems.

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Wave-front reconstruction from multidirectional phase derivatives generated by multilateral shearing interferometers

Cited by 123 publications

References 17 publications

Wavefront-correction for nearly diffraction-limited focusing of dual-color laser beams to high intensities

Wavefront-correction for nearly diffraction-limited focusing of dual-color laser beams to high intensities

Wavefront Measurement for Laser-Guiding Diagnostic

Integrated diffractive shearing interferometry for adaptive wavefront sensing

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