301 citations · 502 across the 11 of their papers we have counts for
9 papers · 1 filter
Self-focused pulse propagation is mediated by spatiotemporal optical vortices
M. S. Le, G. A. Hine, A. Goffin +2
We show that the dynamics of high-intensity laser pulses undergoing self-focused propagation in a nonlinear medium can be understood in terms of the topological constraints imposed…
Spatiotemporal torquing of light
S. W. Hancock, S. Zahedpour, A. Goffin +1
We demonstrate the controlled spatiotemporal transfer of transverse orbital angular momentum (OAM) to electromagnetic waves: the spatiotemporal torquing of light. This is a radical…
Quasi-steady-state air waveguide
A. Goffin, A. Tartaro, H. M. Milchberg
We report the first generation of quasi-steady-state air waveguides capable of guiding high average power laser beams. The guides are produced by high-repetition rate patterned fil…
Optical guiding in 50-meter-scale air waveguides
A. Goffin, I. Larkin, A. Tartaro +1
The distant projection of high peak and average power laser beams in the atmosphere is a longstanding goal with a wide range of applications. Our early proof-of-principle experimen…
Atmospheric aerosol clearing by femtosecond filaments
A. Goffin, J. Griff-McMahon, I. Larkin +1
Atmospheric aerosols, such as water droplets in fog, interfere with laser propagation through scattering and absorption. Femtosecond optical filaments have been shown to clear fogg…
Optical guiding in meter-scale plasma waveguides
B. Miao, L. Feder, J. E. Shrock +2
We demonstrate a new highly tunable technique for generating meter-scale low density plasma waveguides. Such guides can enable electron acceleration to tens of GeV in a single stag…
Self-guiding of long-wave infrared laser pulses mediated by avalanche ionization
D. Woodbury, A. Goffin, R. M. Schwartz +2
Nonlinear self-guided propagation of intense long-wave infrared (LWIR) laser pulses is of significant recent interest owing to the high critical power for self-focusing collapse at…
Full path single-shot imaging of femtosecond pulse collapse in air turbulence
I. Larkin, J. Griff-McMahon, A. Schweinsberg +3
In a single shot, we measure the full propagation path, including the evolution to pulse collapse, of a high power femtosecond laser pulse propagating in air. This technique enable…
Free-space propagation of spatio-temporal optical vortices (STOVs)
S. W. Hancock, S. Zahedpour, A. Goffin +1
Spatio-temporal optical vortices (STOVs) are a new type of optical orbital angular momentum (OAM) with optical phase circulation in space-time. In prior work [N. Jhajj et al., Phys…