BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//SFP Alpes - ECPv6.18.3//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:SFP Alpes
X-ORIGINAL-URL:https://sfp-alpes.fr
X-WR-CALDESC:Évènements pour SFP Alpes
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Paris
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20250330T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20251026T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20260329T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20261025T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
TZNAME:CEST
DTSTART:20270328T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
TZNAME:CET
DTSTART:20271031T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Paris:20261102T110000
DTEND;TZID=Europe/Paris:20261102T120000
DTSTAMP:20261101T225323Z
CREATED:20261101T225323Z
LAST-MODIFIED:20261101T225323Z
UID:10000330-1793617200-1793620800@sfp-alpes.fr
SUMMARY:Arthur GOETSCHY (Institut Langevin\, ESPCI Paris)
DESCRIPTION:Light\, a random walker ?\nRésumé : \nHow do waves such as light or sound propagate through fog\, paint\, or biological tissue? For decades\, this process has been described in terms of the diffusion of wave intensity. However\, this picture misses an essential ingredient: interference between distinct scattering paths. In this talk\, we will explore two situations in which interference profoundly alters wave transport. In the first part\, we will introduce a new propagation equation that describes how specially shaped waves\, such as open transmission channels created using wavefront-shaping techniques\, evolve inside scattering media. This provides access to the spatial structure of transport beyond the conventional diffusion picture. In the second part\, rather than shaping the wave\, we will shape the medium itself. We will show how strong spatial correlations can create pseudogaps and dramatically suppress wave transport\, leading to an Anderson-type transition with intriguing connection to percolation. This effect will be illustrated for vector light propagating through three-dimensional disordered media. \n_ \nContact : dorian.bouchet@univ-grenoble-alpes.fr
URL:https://sfp-alpes.fr/event/arthur-goetschy-institut-langevin-espci-paris/
LOCATION:LiPhy – Salle de conférence\, LiPhy 140 avenue de la Physique\, St Martin d'Hères\, 38402\, France
CATEGORIES:Séminaire
END:VEVENT
END:VCALENDAR