Compression of ultrashort laser pulses via gated multiphoton intrapulse interference phase scans

Comin, Alberto; Ciesielski, Richard; Piredda, Giovanni; Donkers, Kevin; Hartschuh, Achim

doi:10.1364/josab.31.001118

Cited by 15 publications

(12 citation statements)

References 16 publications

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“…Also, the present study did not address the issue of pulse-shaper spectral resolution: low-resolution and/or pixelated shapers might not be able to create the pulse shapes required by some of these methods. For example, Comin et al [37] report MIIPS exhibiting phase-wrapping problems when used with high spectral resolution like the present study. Therefore, in cases with lowresolution pulse shapers, chirp scan may be the best option because it uses small applied phase functions.…”

Section: Discussionsupporting

confidence: 60%

Comparison of pulse compression methods using only a pulse shaper

Wilcox¹,

Ogilvie²

2014

J. Opt. Soc. Am. B

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Spectral phase compensation is crucial in the production of ultrafast laser pulses. To produce very short pulses, it is necessary to correct higher-order phase terms beyond the typical second-order and third-order corrections. It is helpful to have a pulse shaper to perform the compression, and to use an integrated, deterministic pulse-shaperonly method for pulse compression and characterization. While several algorithms exist for this purpose, it is desirable to know which method is optimal. Using a computer simulation, we investigate the speed of several existing approaches in several typical pulse shaping cases. We also present and demonstrate experimentally a new method named Spectral Phase of Electric field by Analytic Reconstruction (SPEAR), a variant of the Chirp Reversal Technique (CRT). The chirp-scan method, CRT, and SPEAR are found to be the fastest methods to achieve a desired level of accuracy, for the cases investigated.

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Section: Discussionsupporting

confidence: 60%

Comparison of pulse compression methods using only a pulse shaper

Wilcox¹,

Ogilvie²

2014

J. Opt. Soc. Am. B

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“…This can become a significant problem in the case of high-numerical aperture microscope objectives and other elements such as lenses, windows and dielectric filters. 19 Common procedures used for intra-focus pulse compression include frequency resolved optical gating (FROG) 20 and multiphoton intrapulse interference phase scans (MIIPS) [21][22][23] .…”

mentioning

confidence: 99%

Graphene Near-Degenerate Four-Wave Mixing for Phase Characterization of Broadband Pulses in Ultrafast Microscopy

et al. 2015

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We investigate near-degenerate four-wave mixing in graphene using femtosecond laser pulse shaping microscopy. Intense near-degenerate four-wave mixing signals on either side of the exciting laser spectrum are controlled by amplitude and phase shaping. Quantitative signal modeling for the input pulse parameters shows a spectrally flat phase response of the near-degenerate four-wave mixing due to the linear dispersion of the massless Dirac Fermions in graphene. Exploiting these properties we demonstrate that graphene is uniquely suited for the intrafocus phase characterization and compression of broadband laser pulses, circumventing disadvantages of common methods utilizing second or third harmonic light.

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“…According to Comin et al . , no difference in compensation between MIIPS and its improved version (G‐MIIPS) is observed after using a few iterations (please refer to fig. 7 in their paper).…”

Section: Methodsmentioning

confidence: 99%

Intravital Imaging Study on Photodamage Produced by Femtosecond Near‐infrared Laser Pulses In Vivo

Arkhipov

Saytashev

Dantus

2016

Photochem & Photobiology

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Ultrashort femtosecond pulsed lasers may provide indispensable benefits for medical bioimaging and diagnosis, particularly for noninvasive biopsy. However, the ability of femtosecond laser irradiation to produce biodamage in the living body is still a concern. To solve this biosafety issue, results of theoretical estimations as well as the in vitro and in situ experiments on femtosecond biodamage should be verified by experimental studies conducted in vivo. Here we analyzed photodamage produced by femtosecond (19 fs, 42 fs and 100 fs) near infrared (~800 nm) laser pulses with an average power of 5 mW and 15 mW in living undissected Drosophila larvae (in vivo). These experimental data on photodamage in vivo agree with the results of theoretical modeling of other groups. Femtosecond NIR laser pulses may affect concentration of fluorescent biomolecules localized in mitochondria of the cells of living undissected Drosophila larva. Our findings confirm that the results of the mathematical models of femtosecond laser ionization process in living tissues may have a practical value for development of noninvasive biopsy based on the use of femtosecond pulses.

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Compression of ultrashort laser pulses via gated multiphoton intrapulse interference phase scans

Cited by 15 publications

References 16 publications

Comparison of pulse compression methods using only a pulse shaper

Comparison of pulse compression methods using only a pulse shaper

Graphene Near-Degenerate Four-Wave Mixing for Phase Characterization of Broadband Pulses in Ultrafast Microscopy

Intravital Imaging Study on Photodamage Produced by Femtosecond Near‐infrared Laser Pulses In Vivo

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