Spatiotemporal control of high-intensity laser pulses with a plasma lens DOI Creative Commons
Dion Li, Kyle Miller, J. R. Pierce

et al.

Physical Review Research, Journal Year: 2024, Volume and Issue: 6(1)

Published: March 12, 2024

Spatiotemporal control encompasses a variety of techniques for producing laser pulses with dynamic intensity peaks that move independently the group velocity. This controlled motion peak offers new approach to optimizing laser-based applications and enhancing signatures fundamental phenomena. Here, we demonstrate spatiotemporal plasma optic. A chirped pulse focused by lens exhibits moving focal point, or “flying focus,” can travel at an arbitrary, predetermined Unlike currently used conventional adaptive optics, be located close interaction region operate orders magnitude higher, near-relativistic intensity. Published American Physical Society 2024

Language: Английский

Roadmap on spatiotemporal light fields DOI Creative Commons
Yijie Shen, Qiwen Zhan, Logan G. Wright

et al.

Journal of Optics, Journal Year: 2023, Volume and Issue: 25(9), P. 093001 - 093001

Published: July 6, 2023

Abstract Spatiotemporal sculpturing of light pulse with ultimately sophisticated structures represents a major goal the everlasting pursue ultra-fast information transmission and processing as well ultra-intense energy concentration extraction. It also holds key to unlock new extraordinary fundamental physical effects. Traditionally, spatiotemporal pulses are always treated spatiotemporally separable wave packet solution Maxwell’s equations. In past decade, however, more generalized forms nonseparable started emerge growing importance for their striking This roadmap intends highlight recent advances in creation control increasingly complex sculptured pulses, from states, diverse geometric topological structures, presenting bird’s eye viewpoint on zoology fields outlook future trends open challenges.

Language: Английский

Citations

91
Broadband control of topological–spectral correlations in space–time beams DOI
Marco Piccardo, Michael De Oliveira, Veronica R. Policht

et al.

Nature Photonics, Journal Year: 2023, Volume and Issue: 17(9), P. 822 - 828

Published: June 8, 2023

Language: Английский

Citations

31
Nondiffracting supertoroidal pulses and optical “Kármán vortex streets” DOI Creative Commons
Yijie Shen, Nikitas Papasimakis, Nikolay I. Zheludev

et al.

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: June 7, 2024

Supertoroidal light pulses, as space-time nonseparable electromagnetic waves, exhibit unique topological properties including skyrmionic configurations, fractal-like singularities, and energy backflow in free space, which however do not survive upon propagation. Here, we introduce the non-diffracting supertoroidal pulses (NDSTPs) with propagation-robust vortex field configurations that persists over arbitrary propagation distances. Intriguingly, structure of NDSTPs has a similarity von Kármán street, pattern swirling vortices fluid gas dynamics staggered singularities can stably propagate forward. will be interest directed channels for information transfer applications.

Language: Английский

Citations

16
Space-time wave packets in multimode optical fibers with controlled dynamic motions and tunable group velocities DOI Creative Commons
Xinzhou Su, Kaiheng Zou, Yingning Wang

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Feb. 27, 2025

Space-time wave packets (STWPs) with correlated spatial and frequency degrees of freedom exhibit time-dependent interference, thereby giving rise to interesting dynamic evolution behaviors. While versatile spatiotemporal phenomena have been demonstrated in freely propagating fields, coupling light into multimode fibers remains a fundamental experimental challenge. Whereas synthesizing STWPs typically relies on continuum plane-wave modes, their multimode-fiber counterparts must be constructed from the discrete set fiber modes whose propagation constants depend structures. Here, we demonstrate axially controllable motion transverse profile reconfigurable group velocity graded-index fibers. This is accomplished by introducing linear association between comb lines corresponding modes. The synthesized present rotation translation 4.8-ps period. Simultaneously, can tuned positive subluminal superluminal negative values (e.g., 0.870, 1.35, 10, –3.3 × 108 m/s, respectively). Su et al. ultra-fast pulses dynamically evolving profiles tunable velocities ranging values, achieved through space-time packets.

Language: Английский

Citations

1
Synthesis of space-time wave packets using correlated frequency comb and spatial field DOI Creative Commons
Alan E. Willner, Xinzhou Su,

Yue Zuo

et al.

Nanophotonics, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Abstract Shaping transverse degrees of freedom across different temporal frequency spectra has unlocked new possibilities for realizing a wide variety novel spatiotemporal phenomena. In particular, using the discrete frequencies optical combs synthesis enables precise spatial separation and control individual spectral lines, thereby facilitating experimental generation space-time wave packets (STWPs). This review explores theoretical investigation demonstration versatile STWPs synthesized correlated comb lines fields, including following: (a) exhibiting dynamic evolution properties; (b) with customized group velocities; (c) longitudinal over STWPs.

Language: Английский

Citations

1
Time-of-flight resolved stimulated Raman scattering microscopy using counter-propagating ultraslow Bessel light bullets generation DOI Creative Commons

Shulang Lin,

Li Gong,

Zhiwei Huang

et al.

Light Science & Applications, Journal Year: 2024, Volume and Issue: 13(1)

Published: July 1, 2024

We present a novel time-of-flight resolved Bessel light bullet-enabled stimulated Raman scattering (B

Language: Английский

Citations

6
Space–time characterization of ultrashort laser pulses: A perspective DOI Creative Commons
Benjamín Alonso, A. Döpp, Spencer W. Jolly

et al.

APL Photonics, Journal Year: 2024, Volume and Issue: 9(7)

Published: July 1, 2024

The characterization of ultrashort laser pulses has significantly advanced beyond the standard spatial and temporal diagnostics to now include sophisticated spatio-temporal measurement techniques. In this perspective, we provide an overview current state space–time characterization, discussing theoretical foundations pulses, various techniques their design trade-offs, challenges opportunities for future development. We explore extension these different wavelength regimes delve into unique posed by polarization-structured beams. potential data-driven analysis enhance information extracted from measurements is highlighted, along with need direct previously inaccessible field components, such as longitudinal electric in tightly focused As diagnostic tools continue evolve, anticipate a where intricate structure light can be analyzed on routine basis, opening up new frontiers ultrafast science technology.

Language: Английский

Citations

5
Customizing non-diffracting structured beams DOI
Yanping Lan, Juntao Hu,

Wenni Ye

et al.

Optics Letters, Journal Year: 2023, Volume and Issue: 48(3), P. 775 - 775

Published: Jan. 5, 2023

We demonstrate a universal approach to designing and generating non-diffracting structured light beams with arbitrary shapes. Such can be tailored by predefining suitable spectral phases that match the corresponding beam shapes in transverse plane. develop practical superposition algorithm discuss properties experimentally confirm our numerical results. Our proposed differs from of classical beams, which are always constructed wave equation solutions. The various could help manipulate particles following likely give rise new applications optical micromachining.

Language: Английский

Citations

13
Experimental Observation of the Spontaneous Emission of a Space–Time Wavepacket in a Multimode Optical Fiber DOI
Karolina Stefańska, Pierre Béjot, Karol Tarnowski

et al.

ACS Photonics, Journal Year: 2023, Volume and Issue: 10(3), P. 727 - 732

Published: Feb. 21, 2023

We provide a complete analysis, from theory to experiment, of the spontaneous emergence discretized conical wave X-type (i.e., localized 2D+1 space-time wavepacket) when an intense ultrashort pulse nonlinearly propagates in multimode fiber. In particular, we reveal that this spatiotemporal phenomenon corresponds broadband intermodal dispersive emission unsteady structure formed during nonlinear propagation. Theoretical phase-matching predictions are experimentally and numerically confirmed commercially available step-index Our results general understanding phase-matched radiations emitted by waves multidimensional optical system.

Language: Английский

Citations

13
Observation of Ultrabroadband Striped Space-Time Surface Plasmon Polaritons DOI
Naoki Ichiji,

Hibiki Kikuchi,

Мurat Yessenov

et al.

ACS Photonics, Journal Year: 2023, Volume and Issue: 10(2), P. 374 - 382

Published: Jan. 11, 2023

Because surface plasmon polaritons (SPPs) are waves characterized by one free transverse dimension, the only monochromatic diffraction-free spatial profiles for SPPs cosine and Airy waves. Pulsed SPP wave packets have been recently formulated that propagation-invariant localized in in-plane dimensions virtue of a tight spectral association between their temporal frequencies, which thus dubbed "space-time" (ST) SPPs. spatiotemporal structure unique to ST-SPPs, optimal launching strategy such novel plasmonic field configurations remains an open question. We present here critical step toward realizing ST-SPPs reporting observations ultrabroadband striped ST-SPPs. These each wavelength travels at prescribed angle with respect propagation axis produce periodic (striped) profile is diffraction-free. start free-space ST packet coupled ST-SPP gold-dielectric interface, unambiguously identify via axial beating detected two-photon fluorescence produced superposition incident excited surface-bound ST-SPP. results highlight viable approach efficient reliable coupling and, thus, represent first crucial realization full potential sensing imaging.

Language: Английский

Citations

12