Keith A. Nelson

TL;DR: A detailed analysis of commonly encountered waveform distortions in femtosecond pulse shaping with pixelated devices, including the effects of discrete sampling, pixel gaps, smooth pixel boundaries, and nonlinear dispersion of the laser spectrum is presented.

TL;DR: In this paper, an extension of the impulsive stimulated thermal scattering method that allows for one-laser-shot characterization of thin film thermal and viscoelastic properties is described through an extensive study of free-standing thin (∼1 μm) polyimide films.

TL;DR: In this paper, femtosecond time-resolved dynamic Gabor holography using highly coherent extreme ultraviolet light generated by high harmonic upconversion of a femto-cond laser was demonstrated.

TL;DR: In this paper, the authors apply subpicosecond duration, single-cycle terahertz pulses as an ultrafast electric field bias to prototypical BaTiO3 ferroelectric thin films with the atomic-scale response probed by femtosecond x-ray-scattering techniques.

TL;DR: In this article, a phase-controlled laser-induced transient thermal grating technique for noncontact, non-destructive measurements of thermal transport in opaque material is presented, which allows us to isolate pure phase or amplitude transient grating signal contributions by varying the relative phase between reference and probe beams.