English
Related papers

Related papers: Shaped pulse electric-field construction and inter…

200 papers

The recent introduction of coherent optical communications has created a compelling need for ultra-fast phase-sensitive measurement techniques operating at milliwatt peak power levels and in time scales ranging from sub-picoseconds to…

Transmission through photoexcited semiconductors is used to temporally and spectrally shape a Terahertz pulse. By adjusting the optical pump-THz probe delay, we experimentally introduce a polar asymmetry in the pulse profile as high as 92%.…

We report a new version of spectral phase interferometry for direct electric field reconstruction (SPIDER), which enables consistency checking through the simultaneous acquisition of multiple shears and offers a simple and precise…

Optics · Physics 2019-03-27 Tobias Witting , Dane R. Austin , Ian A. Walmsley

In this letter we present a new technique for pulse shaping. The desired pulse is shaped by two apodized chirped fiber Bragg gratings which dispersions are adjusted to be cancelled. This technique exploits the well-known property of…

Optics · Physics 2007-05-23 Miguel A. Preciado , Victor Garcia-Munoz , Miguel A. Muriel

Pulse shaping provides a significant level of control and precision when optimizing laser-plasma interactions. Pulse shaping enables precise control and manipulation, resulting in enhanced energy deposition, optimized particle acceleration,…

Plasma Physics · Physics 2024-03-26 A. A. Molavi Choobini , F. M. Aghamir , S. S. Ghaffari-Oskooei

We optimize the pulse shape and polarization of time-dependent electric fields to maximize the production of electron-positron pairs via strong field quantum electrodynamics processes. The pulse is parametrized in Fourier space by a…

High Energy Physics - Phenomenology · Physics 2017-08-02 François Fillion-Gourdeau , Florian Hebenstreit , Denis Gagnon , Steve MacLean

Coherent control of ultrafast quantum phenomena benefits from pulse-shaping capabilities allowing to modulate the envelope and instantaneous phase of optical fields on femtosecond time scales. While such control is available for optical…

Optics · Physics 2026-02-05 Nelin Laštovičková Streshkova , Martin Kozák

We describe a system for generating frequency-chirped and amplitude-shaped pulses on time scales from sub-nanosecond to ten nanoseconds. The system starts with cw diode-laser light at 780 nm and utilizes fiber-based electro-optical phase…

Atomic Physics · Physics 2016-04-20 Charles E. Rogers , Phillip L. Gould

We develop a general method for customizing the intensity statistics of speckle patterns on a target plane. By judiciously modulating the phase-front of a monochromatic laser beam, we experimentally generate speckle patterns with…

Optics · Physics 2019-03-12 Nicholas Bender , Hasan Yilmaz , Yaron Bromberg , Hui Cao

Pulse formation in passively mode locked lasers is often accompanied with dispersive waves that form of spectral sidebands due to spatial inhomogoneities in the laser cavity. Here we present an explicit calculation of the amplitude,…

We present the characterization of ultrashort laser pulses by using the plasma-induced frequency resolved optical switching (PI-FROSt) technique, implemented in ambient air. This recently developed method allows for a temporal…

A new method to coherently control the electron dynamics is proposed using a few-cycle laser pulse in combination with a controlling field. It is shown that this method not only broadens the attosecond pulse bandwidth, but also reduces the…

Atomic Physics · Physics 2015-04-06 Pengfei Lan , Peixiang Lu , Wei Cao , Yuhua Li , Xinlin Wang

We demonstrate how the shape of femtosecond laser pulses can be tailored in order to obtain maximal ionization of atoms or molecules. For that purpose, we have overlayed a direct-optimization scheme on top of a fully unconstrained…

Computational Physics · Physics 2015-05-13 A. Castro , E. Rasanen , A. Rubio , E. K. U. Gross

We present an optical method to measure radio-frequency electro-optic phase modulation profiles by employing spectrum-to-time mapping realized by highly chirped optical pulses. We directly characterize temporal phase modulation profiles of…

Instrumentation and Detectors · Physics 2017-11-23 Michał Jachura , Jan Szczepanek , Wojciech Wasilewski , Michal Karpinski

Attosecond science promises to reveal the most fundamental electronic dynamics occurring in matter and it can develop further by meeting two linked technological goals related to high-order harmonic sources: higher photon flux (permitting…

Using SEA TADPOLE, we directly measure the spatio-temporal field of diffracting ultrashort pulses with femtosecond temporal and micrometer spatial resolutions. Using a circular aperture and an opaque disk, we observe boundary wave pulses…

Optics · Physics 2009-05-28 P. Bowlan , M. Lohmus , P. Piksarv , H. Valtna-Lukner , P. Saari , R. Trebino

We report the study and demonstration of a new laser pulse shaping system capable of generating linearly polarized picosecond laser pulses with variable temporal profiles including symmetric intensity distributions such as parabolic,…

Optics · Physics 2019-02-20 Fangming Liu , Senlin Huang , Shangyu Si , Gang Zhao , Kexin Liu , Shukui Zhang

The forthcoming communication systems are advancing towards improved flexibility in various aspects. Improved flexibility is crucial to cater diverse service requirements. This letter proposes a novel waveform design scheme that exploits…

Signal Processing · Electrical Eng. & Systems 2019-02-19 Mostafa Ibrahim , Ali Fatih Demir , Huseyin Arslan

We present a novel approach for tailoring the laser induced surface topography upon femtosecond-fs pulsed laser irradiation. The method employs spatially controlled double fs laser pulses to actively regulate the hydrodynamic microfluidic…

Optics · Physics 2022-04-14 F. Fraggelakis , G. D. Tsibidis , E. Stratakis

The time-frequency degree of freedom is a powerful resource for implementing high-dimensional quantum information processing. In particular, field-orthogonal pulsed temporal modes offer a flexible framework compatible with both…

Quantum Physics · Physics 2018-05-29 Vahid Ansari , John M. Donohue , Benjamin Brecht , Christine Silberhorn