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physics.optics2025
Transverse orbital angular momentum: setting the record straight
N. Tripathi, S. W. Hancock, H. M. Milchberg
The nature of the transverse orbital angular momentum (tOAM) associated with spatiotemporal optical vortex (STOV) pulses has been the subject of recent debate. We demonstrate that…
physics.optics2025
Transverse orbital angular momentum of amplitude-perturbed fields
S. W. Hancock, N. Tripathi, M. S. Le +2
We measure the change in transverse orbital angular momentum (tOAM) per photon, delta L_y, applied to an optical pulse by a pure amplitude perturbation. The results are in excellen…
physics.optics2024
Remote detection of radioactive material using a short pulse CO2 laser
A. Zingale, S. Waczynski, I. Pogorelsky +4
Detection of radioactive material at distances greater than the radiated particle range is an important goal with applications in areas such as national defense and disaster respon…