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Dr. Wolfram Pernice

Karlsruhe Institute of Technology (KIT)

Thursday, December 6th, 2012 at 10:00:00 AM  

Conference room Querzoli - LENS - via Nello Carrara 1 - Sesto Fiorentino (Florence)

Published on-line at 12:25:25 PM on Monday, December 3rd, 2012

Nonlinear optics and single photon detection on a chip

Superconducting nanowires for recording single photon events in a chip.


Nanophotonic devices allow for realizing complex optical functionality that is otherwise difficult to achieve with free-space optical setups. While such circuits find a multitude of applications in telecommunication and integrated optics, their tremendous potential for non-classical optics and quantum computation remains largely unexplored. Here I will present an integrated platform in which key challenges of integrated quantum optics are addressed by implementing nonlinear optical devices in combination with nanostructured superconducting thin films.

Superconducting nanowires are particularly promising for recording single photon events in a chip-scale framework. Besides offering near-perfect detection efficiency, they also provide a small footprint and scalability as a key step towards integrated quantum optical circuits.

Working with a nonlinear optical substrate material furthermore enables active control of photon interaction. Leveraging additional degrees of freedom provided by free-standing mechanical structures thus yields a rich architecture for studying fundamental physics and emerging applications in chip-based metrology.

Followed by Dr. Murtaza Alì Khan (Europhotonics Doctorate): "Nanometric surface probing with ultra-cold atoms".

For further informations, please contact Prof. Francesco Saverio Cataliotti.