Quantum optics in photonic wires and trumpets
Event details
| Date | 21.03.2014 |
| Hour | 14:15 |
| Speaker | Dr. Jean-Michel Gérard, CEA, Institute for nanoscience and cryogeny, Grenoble, France |
| Location | |
| Category | Conferences - Seminars |
Over the last 20 years, major efforts have been devoted to the tailoring of the optical properties of semiconductor emitters, to improve the performances of microlasers and develop novel quantum optoelectronic devices such as single-photon sources. We have recently introduced photonic wires – besides the commonly used microcavities and photonic crystals - as a novel platform for quantum optics [1].I will review 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 wires have permitted for the first time to combine a record-high efficiency (>0.7 photon per pulse) and a perfectly pure single photon emission process. Emphasis will be put on the newly developed “photonic trumpet” which features a conical taper at the output end of the photonic wire, and provides a perfect Gaussian far-field emission [2]. Photonic trumpets appear as a very promising template to explore and exploit in a solidstate system the unique optical properties of “one-dimensional atoms”. Possible long term applications in the field of quantum information processing will be discussed, including the optimal quantum cloning of single photons, using the amplification by stimulated emission provided by a single 1D atom [3]. Finally, photonic trumpets containing a single QD constitute a hybrid optomechanical system, whose remarkably large coupling between the twolevel system and the mechanical degree of freedom, mediated by the strain,
opens attractive perspectives [4].
This work has been done in collaboration with J Claudon, J Bleuse, M Munsch, NS Malik, A Delga (CEA Grenoble), N Gregersen, J Moerk (DTU Fotonik, Copenhagen), P Lalanne (Institut d’Optique, Palaiseau), A. Auffèves, J.P. Poizat, M Richard, O Arcizet and coworkers at CNRS/Néel.
References
[1] J. Claudon et al, Nature Photon. 4, 174 (2010)
[2] M. Munsch et al, Phys. Rev. Lett. 110, 177402 (2013)
[3] D. Valente et al, New J. Phys. 14, 083029 (2012) and Phys. Rev. A 86, 022333 (2012)
[4] I. Yeo et al, Nature Nanotechnology 9, 106 (2014)
opens attractive perspectives [4].
This work has been done in collaboration with J Claudon, J Bleuse, M Munsch, NS Malik, A Delga (CEA Grenoble), N Gregersen, J Moerk (DTU Fotonik, Copenhagen), P Lalanne (Institut d’Optique, Palaiseau), A. Auffèves, J.P. Poizat, M Richard, O Arcizet and coworkers at CNRS/Néel.
References
[1] J. Claudon et al, Nature Photon. 4, 174 (2010)
[2] M. Munsch et al, Phys. Rev. Lett. 110, 177402 (2013)
[3] D. Valente et al, New J. Phys. 14, 083029 (2012) and Phys. Rev. A 86, 022333 (2012)
[4] I. Yeo et al, Nature Nanotechnology 9, 106 (2014)
Practical information
- Informed public
- Free
Organizer
- ICMP (Arnaud Magrez and Raphaël Butté)
Contact
- Raphaël Butté