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Dr. Jovana Petrovic

Vinca Institute (Belgrade, Serbia)

Monday, July 30th, 2012 at 04:30:00 PM  

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

Published on-line at 11:45:22 AM on Thursday, July 26th, 2012

One-dimensional lattices in cold-atom systems and photonics

Nonlinear dynamics and applications of 1D photonic crystals in Bose-Einstein condensates and photonic lattices at the Vinca Institute in Belgrade.

I will give an overview of the current research in P* group at the Vinca Institute in Belgrade, focusing on the nonlinear dynamics and applications of 1D photonic crystals in Bose-Einstein condensates (BEC) and photonic lattices.

In the first part of the talk, the recent results on the density-waves in the media with non-local nonlinearity will be presented. We predict the existence of the stable double- and triple-period patterns, and show it on an example of a dipolar Bose-Einstein condensate loaded into a deep one-dimensional optical lattice. The stable solutions are found if the dipole-dipole interactions are repulsive and sufficiently strong with respect to the local repulsive nonlinearity.

In the second part of the talk, I will review the research on lattices in planar photonic structures and fibres. The former, in particular waveguide arrays in LiNbO3, have been studied as a playground for a rich nonlinear dynamics as well as prospective switching devices in photonic and telecom circuits. The latter, better known as fibre Bragg and long-period gratings, have been investigated as sensors of bending and small displacements for applications in medical diagnostics. A novel device for measurements of the respiratory and vascular pulsations will be presented.

Finally, I will outline the plans for the future research based on a new femtosecond laser fabrication laboratory scheduled for completion in the second quarter of 2013.

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