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SUMMARY:Gas\, Glass &amp\; Light: 25 Years of Photonic Crystal Fibres  - P
 rof. Philip Russell\, FRS
DTSTART:20161122T160000Z
DTEND:20161122T170000Z
UID:TALK69094@talks.cam.ac.uk
CONTACT:Qifei Gu
DESCRIPTION:*We kindly invite you to the first talk of the University of C
 ambridge SPIE lecture series. The talk will be given by Prof Philip Russel
 l\, Director at the Max-Planck Institute for the Science of Light. Please 
 join us for the exciting talk given by the world leading expert in the fie
 ld of Photonic Crystal Fibres.*\n\n_Food and drinks reception is provided 
 after the talk._\n\nAbstract: The idea for a new kind of optical glass pho
 tonic crystal fibre (PCF) first emerged in 1991. The aim was to realise a 
 fibre with a two-dimensional periodic array of microscopic features (typic
 ally hollow channels) running along its entire length. A quarter of a cent
 ury later\, PCF has led to a whole series of new developments\, some of wh
 ich are moving into real-world applications. This is largely because its a
 bility to "corral" light within a central hollow or solid core\, permittin
 g light and matter to be tightly confined over long distances while precis
 ely controlling the dispersion. Solid-core PCFs have been used to transfor
 m invisible infrared laser pulses into white light 10 million times bright
 er than an arc lamp\, and are now used in commercial supercontinuum source
 s. Twisted solid-core PCF acts like an "optical impeller"\, creating optic
 al vortices that carry orbital angular momentum. Hollow core PCF filled wi
 th gases underpins a range of unique and extremely bright sources of tunab
 le deep and vacuum ultraviolet light\, driven by ultrashort pulses of infr
 ared light. Microparticles can be optically trapped and propelled over 100
  m distances in hollow core PCF\, and used as reconfigurable point sensors
 . Hollow core PCFs are also ideal for flexible delivery of high power lase
 r light in laser manufacturing and\, when filled with solvents containing 
 minute quantities of reagents\, as convenient microreactors for optical st
 udies of chemical processes. 
LOCATION:Cavendish Laboratory\, Pippard Lecture Theatre
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