BEGIN:VCALENDAR
VERSION:2.0
PRODID:icalendar-ruby
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VTIMEZONE
TZID:Europe/Vienna
BEGIN:DAYLIGHT
DTSTART:20180325T030000
TZOFFSETFROM:+0100
TZOFFSETTO:+0200
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=3
TZNAME:CEST
END:DAYLIGHT
BEGIN:STANDARD
DTSTART:20171029T020000
TZOFFSETFROM:+0200
TZOFFSETTO:+0100
RRULE:FREQ=YEARLY;BYDAY=-1SU;BYMONTH=10
TZNAME:CET
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTAMP:20260405T232728Z
UID:593e7ce54d89e752672181@ist.ac.at
DTSTART:20180123T110000
DTEND:20180123T123000
DESCRIPTION:Speaker: Benjamin Shepperson\nhosted by Mikhail Lemeshko\nAbstr
 act: In this talk\, I will discuss the rotation of molecules embedded insi
 de helium nanodroplets as observed in femtosecond laser induced alignment 
 experiments. I will show that with the use of a sufficiently weak 450 fs a
 lignment pulse\, the molecule and its solvation shell can be set into cohe
 rent collective rotation lasting long enough to form revivals. With increa
 sing laser fluence\, I demonstrate that the revivals disappear and instead
 \, rotational dynamics as rapid as those observed for an isolated molecule
  occur during the first few picoseconds. Classical calculations can trace 
 this phenomenon to transient decoupling of the molecule from its solvation
  shell. I will also discuss the results of a more recent study\, where I d
 emonstrate that the rotation of molecules inside helium droplets can also 
 be induced with the use of a mildly truncated 160 ps laser pulse. Finally\
 , I present the results for the alignment and imaging of complexes formed 
 inside helium droplets. In this study\, I show that the structure of the c
 arbon disulphide (CS2) dimer formed inside helium droplets can be determin
 ed from a covariance analysis of the S+ and CS2+ ions.
LOCATION:Big Seminar room Ground floor / Office Bldg West (I21.EG.101)\, IS
 TA
ORGANIZER:jdeanton@ist.ac.at
SUMMARY:Benjamin Shepperson: Alignment and imaging of molecules inside heli
 um droplets
URL:https://talks-calendar.ista.ac.at/events/1013
END:VEVENT
END:VCALENDAR