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SUMMARY:Strong confinement of light in photonic crystals - application to 
 resonant optical trapping
DTSTART:20160914T180000
DTSTAMP:20260930T202814Z
UID:78e665822d23907d90a8cc03957d8d4afebb9d79bb527c65530e084b
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Nicolas Descharmes\nPOB seminar\n\nPhotonic crystals are p
 eriodic structures capable of confining light in very small volumes. This 
 feature makes them particularly interesting for the enhancement of light-m
 atter interactions\, the creation of optical memories\, and the fabricatio
 n of lasers and sensors. In this presentation\, it will be shown that ligh
 t confined in a 2D photonic crystal cavity can be used to exert a strong o
 ptomechanical force on a neighboring nanoparticle.\n\nAs an example of app
 lication\, the first experimental demonstration of a resonant optical trap
  will be presented. Although based on the same physical mechanism as optic
 al tweezers - the gradient force-\, this trap has the great advantage of r
 equiring only minute amounts of light power (here a few tens of micro watt
 s). This approach also offers new perspectives. In particular\, the existe
 nce of a mutual interaction between the local trapping light field and the
  particle\, signature of the resonant nature of the trap\, will be reveale
 d.\n\nBeyond the novelty of this coupled optomechanical platform and its p
 otential applications for fundamental studies\, these results allow us to 
 imagine a new generation of tools\, capable of simultaneously trap and ana
 lyze single nanoscale objects like viruses\, nucleotides\, or quantum dots
 .\n\nYou are cordially invited to the monthly Pizza-Optics-Beer (POB) semi
 nar\, organized by the EPFL Photonics Chapter (EPC). For organizational pu
 rpose (if you want to eat pizza!)\, please confirm your participation in t
 he doodle.
LOCATION:Microcity (Neuchâtel)\, MC B1 273 http://plan.epfl.ch/?request_l
 ocale=fr&room=MCB1273&domain=places
STATUS:CANCELLED
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