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Calculation Of Nonlinear Optical Damage From Space-Time-Tailored Pulses In Dielectrics, Thomas E. Lanier, Jeremy R. Gulley

Faculty and Research Publications

Control of the time duration of a laser pulse as it focuses spatially in a material provides a means for delaying the onset of nonlinear e↵ects during propagation. We investigate simultaneous space-time focusing (SSTF) of femtosecond radially-chirped annular pulses in Kerr dielectrics. The energy and temporal chirp of pulses incident upon a grating-grating-lens system are varied in simulations that solve the unidirectional pulse propagation equation. This system is modeled by inserting transformations that act on the electric field obtained from propagation from one component to the next. The propagation is coupled to the time evolution of the free charge density …