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

и другие.

Photonics, Год журнала: 2024, Номер 11(11), С. 1066 - 1066

Опубликована: Ноя. 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.

Язык: Английский

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

и другие.

Nature Photonics, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 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,

Язык: Английский

Процитировано

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, Год журнала: 2024, Номер unknown, С. 137433 - 137433

Опубликована: Сен. 1, 2024

Язык: Английский

Процитировано

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

и другие.

Photonics, Год журнала: 2024, Номер 11(11), С. 1066 - 1066

Опубликована: Ноя. 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.

Язык: Английский

Процитировано

0