BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Memento EPFL//
BEGIN:VEVENT
SUMMARY:Quantum optics in photonic wires and trumpets
DTSTART:20140321T141500
DTSTAMP:20260427T224152Z
UID:dd7c7db62655d2e554605de757e5d9e60865a5d759efc79aee55d444
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Jean-Michel Gérard\, CEA\, Institute for nanoscience and 
 cryogeny\, Grenoble\, France\nOver the last 20 years\, major efforts have 
 been devoted to the tailoring of the optical properties of semiconductor e
 mitters\, to improve the performances of microlasers and develop novel qua
 ntum optoelectronic devices such as single-photon sources. We have recentl
 y introduced photonic wires – besides the commonly used microcavities an
 d photonic crystals - as a novel platform for quantum optics [1].I will re
 view recent studies on vertical single-mode GaAs photonic wires containing
  InAs quantum dots (QDs)\, which demonstrate a nearly perfect coupling of 
 the QD emission to the guided mode. In the application field\, photonic wi
 res have permitted for the first time to combine a record-high efficiency 
 (>0.7 photon per pulse) and a perfectly pure single photon emission proces
 s. Emphasis will be put on the newly developed “photonic trumpet” whic
 h features a conical taper at the output end of the photonic wire\, and pr
 ovides a perfect Gaussian far-field emission [2]. Photonic trumpets appear
  as a very promising template to explore and exploit in a solidstate syste
 m the unique optical properties of  “one-dimensional atoms”. Possible
  long term applications in the field of quantum information processing wil
 l be discussed\, including the optimal quantum cloning of single photons\,
  using the amplification by stimulated emission provided by a single 1D at
 om [3]. Finally\, photonic trumpets containing a single QD constitute a hy
 brid optomechanical system\, whose remarkably large coupling between the t
 wolevel system and the mechanical degree of freedom\, mediated by the stra
 in\,\nopens attractive perspectives [4].\nThis work has been done in colla
 boration with J Claudon\, J Bleuse\, M Munsch\, NS Malik\, A Delga (CEA Gr
 enoble)\, N Gregersen\, J Moerk (DTU Fotonik\, Copenhagen)\, P Lalanne (In
 stitut d’Optique\, Palaiseau)\, A. Auffèves\, J.P. Poizat\, M Richard\,
  O Arcizet and coworkers at CNRS/Néel.\nReferences\n[1] J. Claudon et al\
 , Nature Photon. 4\, 174 (2010)\n[2] M. Munsch et al\, Phys. Rev. Lett. 11
 0\, 177402 (2013)\n[3] D. Valente et al\, New J. Phys. 14\, 083029 (2012) 
 and Phys. Rev. A 86\, 022333 (2012)\n[4] I. Yeo et al\, Nature Nanotechnol
 ogy 9\, 106 (2014)
LOCATION:PH L1 503 http://plan.epfl.ch/?room=PHL1503
STATUS:CONFIRMED
END:VEVENT
END:VCALENDAR