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Seminars

Spatiotemporal Structuring of Light and lts Applications

Speaker Prof. Qiwen ZHAN
Affiliation University of Shanghai for Science and Technology
Date March 24, 2025 (Monday)
Time 10:30 a.m.
Venue CPD-LG.18, Central Podium Levels – Lower Ground (CPD-LG), Centennial Campus, The University of Hong Kong

Abstract

Spatiotemporal sculpturing of light pulses with sophisticated structures on demand isone major goal of the everlasting pursuit of ultrafast information transmission andprocessing as well as ultra-intense energy concentration and extraction using light. It may hold the key to unlocking new extraordinary fundamental physical effectsTraditionally, spatiotemporal light pulses are treated as spatiotemporally separable wavepackets as a solution to Maxwell's equations. In the past decade, more generalizecforms of spatiotemporally nonseparable solution started to emerge with growingimportance for their striking physical effects. This talk intends to provide the necessarybasics on how to sculpture light in the spatiotemporal domain to realize spatiotemporastructures on demand and highliaht some of the recent advances in the creation andcharacterization of increasingly complex spatiotemporalwave packets. These spatiotemporally separable to complex nonseparable states with diverse geometric andtopological structures exhibit unique physical properties during propagation, focusingand interaction with matter.

 

Anyone interested is welcome to attend.