Spatio-temporal optical vortex (STOV) pulses

S. W. Hancock; S. Zahedpour; A. Goffin; H. M. Milchberg

doi:10.1117/12.2652132

15 March 2023 Spatio-temporal optical vortex (STOV) pulses

S. W. Hancock, S. Zahedpour, A. Goffin, H. M. Milchberg

Proceedings Volume 12436, Complex Light and Optical Forces XVII; 1243605 (2023) https://doi.org/10.1117/12.2652132
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

We review highlights of our recent contributions to understanding the propagation dynamics and transverse orbital angular momentum of optical pulses carrying spatiotemporal optical vortices (STOVs). STOVs, which were first observed as an emergent phenomenon in nonlinear self-focusing, were first linearly generated using a 4𝑓 pulse shaper and measured using transient-grating single-shot supercontinuum spectral interferometry (TG-SSSI). That STOV-based transverse orbital angular momentum (OAM) is carried at the single photon level was then confirmed in measurements of OAM conservation in second harmonic generation. Our recent theory for the electromagnetic mode structure and transverse OAM of STOV-carrying pulses in dispersive media predicts half-integer OAM and the existence of a transverse OAM-carrying quasiparticle: the bulk medium STOV polariton.

Conference Presentation

Citation Download Citation

S. W. Hancock, S. Zahedpour, A. Goffin, and H. M. Milchberg "Spatio-temporal optical vortex (STOV) pulses", Proc. SPIE 12436, Complex Light and Optical Forces XVII, 1243605 (15 March 2023); https://doi.org/10.1117/12.2652132

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