Three-dimensional spatiotemporal pulse characterization with an acousto-optic pulse shaper and a Hartmann–Shack wavefront sensor

Cousin, Seth L.; Bueno, Juan M.; Forget, Nicolas; Austin, Dane R.; Biegert, Jens

doi:10.1364/ol.37.003291

Cited by 40 publications

(18 citation statements)

References 15 publications

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“…19 In spite of their significance, a direct, easy access to simple spatio-temporal couplings (STC) 20 and their control/optimisation has remained difficult. Several techniques have been developed in recent years for STC characterization: those that allow a complete field reconstruction like SEA TADPOLE, STRIPED FISH, 2D SPIDER, HAMSTER, [21][22][23][24] or the ones that provide partial information like the folded Mach-Zehnder. 25 These methods are generally either based on interferometry between a reference pulse and a signal pulse or combines an acousto-optics module with a Hartmann-Shack wavefront sensor.…”

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confidence: 99%

Investigation of amplitude spatio-temporal couplings at the focus of a 100 TW-25 fs laser

Kahaly

Monchocé

Gallet

et al. 2014

Applied Physics Letters

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International audienceWe address the on target focal spot spatio-temporal features of an ultrashort, 100 TW class laser chain by using spectrally resolved imaging diagnostics. The observed spatio-spectral images, which we call rotating imaging spectrographs, are obtained single shot to reveal the essential information about the spatio-temporal couplings. We observe nontrivial effects in the focal plane due to compressor defects which significantly affect the maximum on target intensity. This diagnostic might become an essential tool for improving compressor alignment in many upcoming multi-petawatt short pulse laser facilities

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confidence: 99%

Investigation of amplitude spatio-temporal couplings at the focus of a 100 TW-25 fs laser

Kahaly

Monchocé

Gallet

et al. 2014

Applied Physics Letters

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“…Shackled FROG [33,34] and HAMSTER [35] are based on combining a Hartmann-Shack spatial sensor with a FROG apparatus. The Hartmann-Shack sensor yields the spatial wavefront and amplitude information, and a FROG measurement of the central part (or anywhere else that contains all frequency components) stitches together the results.…”

Section: Introductionmentioning

confidence: 99%

Complete characterization of a spatiotemporally complex pulse by an improved single-frame pulse-measurement technique

et al. 2014

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We further develop a simple device, called Spatially and Temporally Resolved Intensity and Phase Evaluation Device: Full Information from a Single Hologram (STRIPED FISH), for measuring the complete spatiotemporal intensity and phase, Ix; y; t and ϕx; y; t, respectively, of an arbitrary ultrashort pulse on a single camera frame (and hence, on a single shot). We have increased the measurable bandwidth, eliminated most aberrations, and improved the uniformity of the multiple holograms in the device. We demonstrate these improvements by making single-camera-frame measurements of spatiotemporally complex subpicosecond crossed and chirped pulses from a Ti:sapphire oscillator. In order to display the massive resulting data files-pairs of four-dimensional intensityand-phase data-we also develop a method for generating intuitive movies of the measured pulses. With these improvements, this device and its resulting movies should be able to perform and intuitively display true singleshot spatiotemporal measurements of most current ultrashort pulses.

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“…The measurement of the spatial or temporal intensity profile of ultrashort pulses is now a standard procedure in ultrafast optics laboratories. Several ultrashort-pulse measurement techniques have emerged that allow for full amplitude and phase characterization, such as photodiodes and streak cameras 9-11 , autocorrelation and cross-correlation [12][13][14] , Frequency Resolved Optical Gating (FROG) [15][16][17]Spectral Phase Interferometry for Direct Electric-field Reconstruction (SPIDER) [18][19][20] , direct wave-front sensing [21][22][23] , and digital holography [24][25][26] . Though, the present method can be used to measure the pulse width, however, present ways are mostly focus on the measurement of pulse widths of the whole beam.…”

Section: Introductionmentioning

confidence: 99%

An experimental method for pulse-width measurement in partial positions of an ultrashort-pulsed beam

Tan

2014

SPIE Proceedings

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We experimentally show a method for pulse-width measurement. Pulse widths at different partial positions of an ultrashort-pulsed beam are measured, results show that pulse widths in the center of the beam are less than that of in the edge because of the existence of residual chirp. We also investigate the temporal evolution at a strongest spatial modulation position of the beam during small-scale self-focusing, it finds that its pulse width decreases as power increases due to a spatiotemporal coupling effect. We find that this method not only can be used to accurately measure the pulse width at any one spatial position of the beam, but also be useful for real-time monitoring of spatial-temporal evolution.

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Three-dimensional spatiotemporal pulse characterization with an acousto-optic pulse shaper and a Hartmann–Shack wavefront sensor

Cited by 40 publications

References 15 publications

Investigation of amplitude spatio-temporal couplings at the focus of a 100 TW-25 fs laser

Investigation of amplitude spatio-temporal couplings at the focus of a 100 TW-25 fs laser

Complete characterization of a spatiotemporally complex pulse by an improved single-frame pulse-measurement technique

An experimental method for pulse-width measurement in partial positions of an ultrashort-pulsed beam

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