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SUMMARY:Angle-Resonant Stimulated Polariton Amplifier - AMOP group - Depar
 tment of Physics
DTSTART:20071205T110000Z
DTEND:20071205T120000Z
UID:TALK9405@talks.cam.ac.uk
CONTACT:Stefan Palzer
DESCRIPTION:The Journal club will discuss:\n\nRoberts et.al.\; Phys. Rev. 
 Lett\, 84\, 7\, 1547\; "Angle-Resonant Stimulated Polariton Amplifier"\n\n
 Abstract:\n\nWe experimentally demonstrate resonant coupling between photo
 ns and excitons in microcavities\nwhich can efficiently generate enormous 
 single-pass optical gains approaching 100. This new parametric\nphenomenon
  appears as a sharp angular resonance of the incoming pump beam\, at which
  the moving\nexcitonic polaritons undergo very large changes in momentum. 
 Ultrafast stimulated scattering is clearly\nidentified from the exponentia
 l dependence on pump intensity. This device utilizes boson amplification\n
 induced by stimulated energy relaxation.
LOCATION:HEP Seminar Room (980) Rutherford Building\, Cavendish Laboratory
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