Time-Resolved Pulse Propagation in Glass in Single-Shot

TL;DR

This paper demonstrates time-resolved pulse self-steepening and splitting in glass using a broadband streak camera, supported by experiments and 3D simulations, revealing MPI's role in pulse dynamics.

Contribution

It introduces a single-shot measurement technique for observing ultrafast pulse dynamics in glass, combining experimental and simulation approaches.

Findings

Pulse self-steepening observed in glass.

Pulse splitting initiated by multiphoton ionization.

Broadband probe achieves 40 fs temporal resolution.

Abstract

We report time-resolved pulse self-steepening and temporal splitting in flint glass (SF11) in single-shot using broadband frequency-domain streak camera (B-FDSC). The broadband ($60$ nm) probe beam generated through a compact coverslip array provides $\sim 40$ fs temporal resolution. The experimental results support the theoretical model of pulse self-steepening and indicate that multiphoton ionization (MPI) initiates the pulse splitting process in glass. We perform a three-dimensional simulation to verify the experimental results.