Journal ArticleDOI
Angular spectrum of diffracted wave fields with apochromatic correction.
TLDR
Compensation of diffraction-induced angular dispersion of ultrashort pulses up to a second order is reported on and a strategy for chromatic correction profits from high Dispersion of kinoform-type zone plates is proposed.Abstract:
We report on compensation of diffraction-induced angular dispersion of ultrashort pulses up to a second order. A strategy for chromatic correction profits from high dispersion of kinoform-type zone plates. Ultraflat dispersion curves rely on a saddle point that may be tuned at a prescribed wavelength. Validity of our approach may reach the few-cycles regime.read more
Citations
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Journal ArticleDOI
Nondiffracting Bessel plasmons
TL;DR: These wave fields feature deep subwavelength FWHM, but are supported by high-order homogeneous SPPs of a metal/dielectric (MD) superlattice, and can be relocated to any MD interface, by interfering multiple converging SPPs with controlled phase matching.
Journal ArticleDOI
Free-space delay lines and resonances with ultraslow pulsed Bessel beams.
TL;DR: In this paper, the angular dispersion of pulsed Bessel beams of invariant transverse spatial frequency, which spontaneously emerge from near-field generators, is investigated for the ultralow motion of polychromatic Bessel beam in unbounded, non-invariant media.
Journal ArticleDOI
Controlling the carrier-envelope phase of few-cycle focused laser beams with a dispersive beam expander.
TL;DR: A hybrid diffractive-refractive lens system is proposed to drive the wavefield to an immersion microscope objective under convenient broadband modulation and robustness over positioning of this dispersive beam expander is demonstrated.
Book ChapterDOI
Controlling the Carrier-Envelope Phase of Few-Cycle Laser Beams in Dispersive Media
TL;DR: In this paper, the frequency-dependent nature of diffraction behaves as a sort of dispersion that makes changes in the pulse front surface, its group velocity, the envelope form, and the carrier frequency.
References
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Journal ArticleDOI
Pulse distortions in tilted pulse schemes for ultrashort pulses
TL;DR: In this article, an analytical expression for the propagation of the amplitude of tilted ultrashort pulses is derived and the conditions to be met in order to avoid such distortions arising are the pulse broadening, tilt angle decrease, chirp, frequency shift and spatial profile variation.
Journal ArticleDOI
Programmable focal spot shaping of amplified femtosecond laser pulses.
Nicolas Sanner,Nicolas Huot,Eric Audouard,Christian Larat,Jean-Pierre Huignard,Brigitte Loiseaux +5 more
TL;DR: This work describes the programmable spatial beam shaping of 100-kHz, 4-microJ amplified femtosecond pulses in a focal plane by wave-front modulation and obtains top-hat, doughnut, square, and triangle shapes of 20-microm size.
Journal ArticleDOI
Chromatic-distortion compensation in splitting and focusing of femtosecond pulses by use of a pair of diffractive optical elements.
TL;DR: A simple optical system to compensate for chromatic distortion that occurs during fan-out of femtosecond pulses by diffractive optics is proposed, which has been verified through optical and processing experiments with 100-fs, 800-nm pulses.
Journal ArticleDOI
Splitting of femtosecond laser pulses by using a Dammann grating and compensation gratings.
Guowei Li,Changhe Zhou,Enwen Dai +2 more
TL;DR: A novel method in which theangular dispersion can be compensated by positioning an m-time-density grating to collimate the mth-order beam that has been split, producing an array of beams that are free of angular dispersion is proposed.
Journal ArticleDOI
Propagation of femtosecond pulses through lenses, gratings, and slits
TL;DR: In this article, an analytical expression for the temporal and radial intensity distributions in the focal plane was found for ultrashort pulse propagation through a lens, a grating, and a slit.