Direct Acceleration of an Electron Beam with a Radially Polarized Long-Wave Infrared Laser DOI Creative Commons
William Li, Igor Pogorelsky, M. Palmer

et al.

Photonics, Journal Year: 2024, Volume and Issue: 11(11), P. 1066 - 1066

Published: Nov. 14, 2024

Direct laser acceleration with radially polarized lasers is an intriguing variant of laser-based particle that has the potential offering GeV/cm-level energy while avoiding instabilities and complex beam dynamics associated plasma wakefield accelerators. A major limiting factor difficulty generating high-power beams. In this paper, we propose use CO2-based long-wave infrared (LWIR) as a driver for direct acceleration, polarization insensitivity gain medium allows to be amplified. Additionally, larger waist sizes, Rayleigh lengths, pulse lengths long wavelength could improve injection efficiency electron beam. By comparing simulations using near-infrared LWIR laser, show indeed improved by up order magnitude longer wavelength. Furthermore, even sub-TW peak powers can provide MeV-level gains. Thus, significant promise laser-driven demonstration accelerator.

Language: Английский

Expanding momentum bandgaps in photonic time crystals through resonances DOI Creative Commons
Xuchen Wang, Puneet Garg, M. S. Mirmoosa

et al.

Nature Photonics, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 12, 2024

The realization of photonic time crystals is a major opportunity but also comes with considerable challenges. most pressing one, potentially, the requirement for substantial modulation strength in material properties to create noticeable momentum bandgap. Reaching that bandgap optics highly demanding current, and possibly future materials platforms because their small by tendency. Here we demonstrate introducing temporal variations resonant material, can be drastically expanded strengths reach known low-loss realistic laser pump powers. resonance emerge from an intrinsic or suitably spatially structured supporting structural resonance. Our concept validated bulk media optical metasurfaces paves way towards first experimental realizations crystals. Optical achieved using expand bandgap, even at low strengths,

Language: Английский

Citations

8
Investigation on growth, structural, mechanical, linear and nonlinear optical properties of DiLithium fumarate TetraHydrate single crystal DOI

S. Kavitha,

R. Ezhil Vizhi

Materials Letters, Journal Year: 2024, Volume and Issue: unknown, P. 137433 - 137433

Published: Sept. 1, 2024

Language: Английский

Citations

1
Direct Acceleration of an Electron Beam with a Radially Polarized Long-Wave Infrared Laser DOI Creative Commons
William Li, Igor Pogorelsky, M. Palmer

et al.

Photonics, Journal Year: 2024, Volume and Issue: 11(11), P. 1066 - 1066

Published: Nov. 14, 2024

Direct laser acceleration with radially polarized lasers is an intriguing variant of laser-based particle that has the potential offering GeV/cm-level energy while avoiding instabilities and complex beam dynamics associated plasma wakefield accelerators. A major limiting factor difficulty generating high-power beams. In this paper, we propose use CO2-based long-wave infrared (LWIR) as a driver for direct acceleration, polarization insensitivity gain medium allows to be amplified. Additionally, larger waist sizes, Rayleigh lengths, pulse lengths long wavelength could improve injection efficiency electron beam. By comparing simulations using near-infrared LWIR laser, show indeed improved by up order magnitude longer wavelength. Furthermore, even sub-TW peak powers can provide MeV-level gains. Thus, significant promise laser-driven demonstration accelerator.

Language: Английский

Citations

0