Off-Axis Spiral Phase Mirrors for Generating High Intensity Optical Vortices

Abstract

In this work, we present a novel and practical method for generating optical vortices in high-power laser systems. Off-axis spiral phase mirrors are used at oblique angles of incidence in the beam path after amplification and compression allowing for the generation of high-power optical vortices in almost any laser system. An off-axis configuration is possible via modification of the azimuthal gradient of the spiral phase helix and is demonstrated with a simple model using a discrete spiral staircase. This work presents the design, fabrication, and implementation of off-axis spiral phase mirrors in both low and high-power laser systems.

References in corpus (3)

• Nonlinear laser driven donut wakefields for positron and electron acceleration
• Angular Momentum of Twisted Radiation from an Electron in Spiral Motion
• Optimal Laguerre-Gaussian Modes for High-Intensity Optical Vortices

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