Search Results - "Béjot, Pierre"
-
1
Quadrics for Structuring Invariant Space–Time Wavepackets
Published in ACS photonics (15-06-2022)“…Space–time light structuring has emerged as a very powerful tool for controlling the propagation dynamics of pulsed beams. The ability to manipulate and…”
Get full text
Journal Article -
2
High-gain far-detuned nonlinear frequency conversion in a few-mode graded-index optical fiber
Published in Scientific reports (10-07-2024)“…We present theoretical and experimental evidence of high-gain far-detuned nonlinear frequency conversion, extending towards both the visible and the…”
Get full text
Journal Article -
3
Spectral broadening and nonlinear mode coupling in a gas-filled hollow core capillary
Published in Applied physics. B, Lasers and optics (01-05-2024)“…In this investigation, we explore the phenomenon of spectral broadening in a gas-filled hollow-core capillary induced by ultra-short pulses, with a focus on…”
Get full text
Journal Article -
4
Optical Imaging of Coherent Molecular Rotors
Published in Laser & photonics reviews (01-05-2020)“…Short laser pulses are widely used for controlling molecular rotational degrees of freedom and inducing molecular alignment, orientation, unidirectional…”
Get full text
Journal Article -
5
Quadrics for Structuring Invariant Space-Time Wave Packets
Published in EPJ Web of conferences (2022)“…We provide a general approach for structuring invariant 3D+1 optical wave packets in both bulk and structured dispersive media, through a simple engineering of…”
Get full text
Journal Article -
6
Feedback Optimization Strategy for Rotational Alignment Echo Spectroscopy
Published in Advanced photonics research (01-12-2023)“…The recent discovery of rotational echoes has contributed to extend the applications of field‐free molecular alignment to short time scales, namely to a…”
Get full text
Journal Article -
7
Compression of 1.8 μm laser pulses to sub two optical cycles with bulk material
Published in Applied physics letters (22-03-2010)“…We demonstrate a simple scheme to generate 0.4 mJ 11.5 fs laser pulses at 1.8 μm. Optical parametrically amplified pulses are spectrally broadened by nonlinear…”
Get full text
Journal Article -
8
Using molecules as a quantum interface to store ultrashort optical vortices
Published in EPJ Web of conferences (2023)“…We exploit gas-phase molecules as light-matter interface to store an orbital angular momentum (OAM) or a superposition of OAM states (OAM-based photonic…”
Get full text
Journal Article -
9
Phase-matching free pulse retrieval based on plasma-induced defocusing
Published in EPJ Web of conferences (2023)“…A phase-matching free pulse retrieval technique based on plasma-induced defocusing in a rare gas is presented. Based on a pump-probe setup, this technique uses…”
Get full text
Journal Article -
10
Discretized Conical Waves in Multimode Optical Fibers
Published in Physical review letters (15-01-2021)“…Multimode optical fibers are essential in bridging the gap between nonlinear optics in bulk media and single-mode fibers. The understanding of the transition…”
Get full text
Journal Article -
11
1.7–18 µm mid-infrared supercontinuum generation in a dispersion-engineered step-index chalcogenide fiber
Published in Results in physics (01-07-2021)“…We demonstrate 1.7–18 µm mid-infrared coherent supercontinuum generation by means of the full transmission window of a unique dispersion-engineered step-index…”
Get full text
Journal Article -
12
An efficient multimode vectorial nonlinear propagation solver beyond the weak guidance approximation
Published 26-02-2024“…In this article, we present an efficient numerical model able to solve the vectorial nonlinear pulse propagation equation in circularly symmetric multimode…”
Get full text
Journal Article -
13
Spatiotemporal Helicon Wavepackets
Published in ACS photonics (18-08-2021)“…Propagation-invariant or nondiffracting optical beams have received considerable attention during the last two decades. However, the pulsed nature of light…”
Get full text
Journal Article -
14
Taming light in all dimensions
Published in Nature photonics (01-10-2022)“…A combination of state-of-the-art temporal and spatial shaping techniques enables shaping pulsed laser light in all dimensions in a correlated manner, paving…”
Get full text
Journal Article -
15
Azimuthal Modulation Instability, Breathers, and Solitons in Ring-Core Optical Fibers
Published in ACS photonics (21-08-2024)“…Manipulating and processing orbital angular momentum of light with optical fibers still remains a very challenging and complex task. We investigate the…”
Get full text
Journal Article -
16
Optimal control of filamentation in air
Published in Applied physics letters (23-10-2006)“…The authors demonstrate optimal control of the propagation of ultrashort, ultraintense (multiterawatt) laser pulses in air over distances up to 36 m in a…”
Get full text
Journal Article -
17
Experimental Observation of the Spontaneous Emission of a Space–Time Wavepacket in a Multimode Optical Fiber
Published in ACS photonics (15-03-2023)“…We provide a complete analysis, from theory to experiment, of the spontaneous emergence of a discretized conical wave of X-type (i.e., a localized 2D+1…”
Get full text
Journal Article -
18
Molecular Quantum Interface for Storing and Manipulating Ultrashort Optical Vortex
Published in Laser & photonics reviews (01-12-2023)Get full text
Journal Article -
19
Molecular Quantum Interface for Storing and Manipulating Ultrashort Optical Vortex
Published in Laser & photonics reviews (01-02-2023)“…Light beams carrying orbital angular momentum (OAM) have become over the past few years a subject of widespread interest with unprecedented applications in…”
Get full text
Journal Article -
20
Quadrics for Structuring Invariant SpaceTime Wavepackets
Published in ACS photonics (10-05-2022)Get full text
Journal Article