BEGIN:VCALENDAR VERSION:2.0 PRODID:-//linuxsoftware.nz//NONSGML Joyous v1.4//EN BEGIN:VEVENT SUMMARY:From advanced plasma-based accelerators to superradiant light sour ces with arbitrarily structured light DTSTART:20260123T160000Z DTEND:20260123T180000Z DTSTAMP:20260616T030818Z UID:7d2da7ac-c1c7-4f08-a679-3da346bd6ecf SEQUENCE:2 CREATED:20260120T104938Z DESCRIPTION:LINK (+)Structured light - light whose spatial and temporal pr ofiles may be simultaneously tailored - offers new capabilities for contro lling all degrees of freedom of an optical field and\, therefore\, its int eraction with matter. Achieving such control requires tunable spatiotempor al spectra. In this talk\, I present a comprehensive framework for structu red light\, encompassing theory\, numerical modelling\, and experimental w ork.First\, I derive methods for accurately controlling the focal trajecto ry of wave packets and outline a numerical framework for injecting arbitra ry structured light into FDTD codes. Next\, I explore the generation of sp atiotemporally structured radiation through laser-plasma interactions. To this end\, I introduce a generalised Thomson scattering formalism that ena bles the design of experiments for creating tailored spatiotemporal pulses . Finally\, I present experimental and simulation results regarding "\ ;light springs"\;\, demonstrating their synthesis and spectral measure ments\, as well as their application in tuning orbital group velocity for plasma super-radiance. LAST-MODIFIED:20260120T105238Z LOCATION:DF Seminar Room (2-8.3)\, 2nd floor of Physics Building/Online URL:http://df.vps.tecnico.ulisboa.pt/en/events/from-advanced-plasma-based- accelerators-to-superradiant-light-sources-with-arbitrarily-structured-lig ht/ X-ALT-DESC;FMTTYPE=text/html:

LINK (+)

Structured light - light whose spatial and temporal profiles may be simultaneously tailored - offers new capabilities for controlling all degrees of freedom of an opti cal field and\, therefore\, its interaction with matter. Achieving such co ntrol requires tunable spatiotemporal spectra. In this talk\, I present a comprehensive framework for structured light\, encompassing theory\, numer ical modelling\, and experimental work.

First\, I derive methods for accurately controlling the focal traject ory of wave packets and outline a numerical framework for injecting arbitr ary structured light into FDTD codes. Next\, I explore the generation of s patiotemporally structured radiation through laser-plasma interactions.


To this end\, I introduce a generalised Thomson scattering fo rmalism that enables the design of experiments for creating tailored spati otemporal pulses. Finally\, I present experimental and simulation results regarding "\;light springs"\;\, demonstrating their synthesis and spectral measurements\, as well as their application in tuning orbital gro up velocity for plasma super-radiance.

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