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SUMMARY:Taming the dynamics of a levitated nanoparticle: from bistability 
 to cooling
DTSTART:20161111T151500
DTSTAMP:20260509T234303Z
UID:af06fed1cd2190bdf0a0accb95983c3b097f5500c110d795add9f2b2
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Romain Quidant\, ICREA Professor\, ICFO\, Barcelona\, Sp
 ain\n\nhttps://www.icfo.eu/research/groups-details?group_id=27\nOptomechan
 ics holds great promises to push the limits of experimental physics\, open
 ing new opportunities in ultra-weak force sensing\, thermodynamics and giv
 ing us further insight on the transition between the quantum and classical
  worlds. In this talk\, we introduce the use of a levitated nanoparticle 
 in vacuum as a nano-optomechanical system with unprecedented performances.
  We first describe its unique linear and nonlinear mechanical properties i
 ncluding its high sensing capability and bi-stable dynamics. Subsequently\
 , we present our efforts in cooling its motion towards mechanical ground s
 tate at room temperature. In particular\, we report on an experiment that 
 combines active parametric feedback cooling with passive resolved side ban
 d cooling in a macroscopic high finesse optical cavity. Finally\, we discu
 ss how the concept of levitation optomechanics can be extended to optical 
 nanocavity by exploiting their subwavelength mode confinement.
LOCATION:CE 1 5 https://plan.epfl.ch/?room==CE%201%205
STATUS:CONFIRMED
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