96 citations · 261 across the 6 of their papers we have counts for
6 papers
Probing Stark-induced nonlinear phase variation with opto-optical modulation
E. R. Simpson, M. Labeye, S. Camp +6
We extend the recently developed technique of opto-optical modulation (OOM) to probe state-resolved ac-Stark-induced phase variations of a coherently excited ensemble of helium ato…
Controlled free-induction decay in the extreme ultraviolet
Samuel Bengtsson, Esben W. Larsen, David Kroon +8
Coherent sources of attosecond extreme ultraviolet (XUV) radiation present many challenges if their full potential is to be realized. While many applications benefit from the broad…
Role of Excited States In High-order Harmonic Generation
Samuel Beaulieu, Seth Camp, Dominique Descamps +8
We investigate the role of excited states in High-order Harmonic Generation by studying the spectral, spatial and temporal characteristics of the radiation produced near the ioniza…
Attosecond Transient Absorption in Dense Gases: Exploring the Interplay between Resonant Pulse Propagation and Laser-Induced Line Shape Control
Chen-Ting Liao, Seth Camp, Kenneth J. Schafer +2
We investigate the evolution of extreme ultraviolet (XUV) spectral lineshapes in an optically-thick helium gas under near-infrared (IR) perturbation. In our experimental and theore…
The interplay between resonant enhancement and quantum path dynamics in harmonic generation in helium
Seth Camp, Kenneth J. Schafer, Mette B. Gaarde
We present a theoretical study of the influence of resonant enhancement on quantum path dynamics in the generation of harmonics above and below the ionization threshold in helium.…
Beyond the single-atom response in absorption lineshapes: Probing a dense, laser-dressed helium gas with attosecond pulse trains
Chen-Ting Liao, Arvinder Sandhu, Seth Camp +2
We investigate the absorption line shapes of laser-dressed atoms beyond the single-atom response, by using extreme ultraviolet (XUV) attosecond pulse trains to probe an optically t…