Abstract

We present a technique for the single-shot measurement of the spatiotemporal (1D ${\rm space} + {\rm time}$) amplitude and phase of an ultrashort laser pulse. The method, transient grating single-shot supercontinuum spectral interferometry (TG-SSSI), is demonstrated by the space–time imaging of short pulses carrying spatiotemporal optical vortices. TG-SSSI is well suited for characterizing ultrashort laser pulses that contain singularities associated with spin/orbital angular momentum or polarization.

© 2021 Optical Society of America

Transient-grating single-shot supercontinuum spectral interferometry (TG-SSSI): publisher’s note

S. W. Hancock, S. Zahedpour, and H. M. Milchberg
Opt. Lett. 46(6) 1433-1433 (2021)

Second-harmonic generation of spatiotemporal optical vortices and conservation of orbital angular momentum

S. W. Hancock, S. Zahedpour, and H. M. Milchberg
Optica 8(5) 594-597 (2021)

Free-space propagation of spatiotemporal optical vortices

S. W. Hancock, S. Zahedpour, A. Goffin, and H. M. Milchberg
Optica 6(12) 1547-1553 (2019)

Simplified single-shot supercontinuum spectral interferometry

Dhruvit Patel, Dogeun Jang, Scott W. Hancock, Howard M. Milchberg, and Ki-Yong Kim
Opt. Express 28(8) 11023-11032 (2020)

Measurement of transient nonlinear refractive index in gases using xenon supercontinuum single-shot spectral interferometry

Y.-H. Chen, S. Varma, I. Alexeev, and H. M. Milchberg
Opt. Express 15(12) 7458-7467 (2007)