Dual Self-Diffraction Dispersion-scan for Measuring Spatially Inhomogeneous Ultrashort Pulses

Miguel Canhota,Rosa Weigand,Helder Crespo,G Cerullo,M Khalil,R Li,F Kärtner,J Ogilvie

doi:10.1051/epjconf/201920501025

Abstract

We develop a self-diffraction dispersion-scan method that simultaneously measures two distinct spatial portions of an ultrashort light pulse and apply it to the temporal characterization of 400-nm broadband ultraviolet pulses generated by multi-plate continuum.

Highlights

Ultrafast light sources can be very complex both in the temporal and the spatial domains, and need to be correctly characterized for different applications
We develop a self-diffraction dispersion-scan method that simultaneously measures two distinct spatial portions of an ultrashort light pulse and apply it to the temporal characterization of 400-nm broadband ultraviolet pulses generated by multi-plate continuum
The recently developed multi-plate continuum (MPC) method [1] shows promise for solving the energy and wavelength limitations normally found in guided supercontinuum geometries, namely gas-based hollow-fiber post-compressors

Summary

Introduction

Ultrafast light sources can be very complex both in the temporal and the spatial domains, and need to be correctly characterized for different applications. We develop a self-diffraction dispersion-scan method that simultaneously measures two distinct spatial portions of an ultrashort light pulse and apply it to the temporal characterization of 400-nm broadband ultraviolet pulses generated by multi-plate continuum. The recently developed multi-plate continuum (MPC) method [1] shows promise for solving the energy and wavelength limitations normally found in guided supercontinuum geometries, namely gas-based hollow-fiber post-compressors.

Results

Conclusion