: Creation, Control, and Next Generation Metrologies for High-Intensity TailoredLight Matter Interactions
Abstract
We will purchase a titanium sapphire chirped pulse amplification system with front-end dynamic pulse-beam shaping and back-end wavelength extension into the Mid-IR. A system of two deformable mirrors will provide control over the phase and amplitude of the beam profile, while a carefully designed optical configuration using a spatial light modulator will allow aberration-free control over the phase and amplitude of the pulse profile. An optical parametric amplifier will extend the wavelength range from 0.8?m to ? 2micrometers. We will use the ultrafast titanium sapphire laser system to generate dynamically variable filamentation and laser induced plasmas as part of an AFOSR-supported effort to pioneer novel, high-dimensional metrologies for broadband, ultrafast light. A variety of configurations including vortex and vectorized light structures will be explored using these recently developed metrologies. A better understanding of the coupled, spatiotemporal dynamics of high-intensity light matter interaction will lead to advances in directed energy, remote sensing, and materials processing. Mid-IR wavelength extensions will result in a greater accelerating ponderomotive force, while dramatic light structuring allows exploring the transition between pondermotive and direct-field charge acceleration. Driving with Mid-IR would allow short-wavelength probes to propagate along a quasi-DC magnetic field to observe whistler-wave type dispersion normally seen only in the RF. Algorithms developed for broadband simultaneous phase and amplitude imaging of plasmas and filamentation are well suited for application in dynamic feed-back control over high-intensity light matter interactions. Combining these algorithms and front-end pulse and beam shaping to optimize parametric down-conversion and sculpted light-based re-focusing of high harmonic beams will lead to advanced secondary radiation sources.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 12, 2021
- Source ID
- FA95502010143
Entities
People
- Daniel Lawrence Adams
Organizations
- Air Force Office of Scientific Research
- Colorado School of Mines
- United States Air Force