Laboratory of Cold Atoms Near Surfaces

news

Bachelors' theses proposed for 2015/2016

Information in Polish only

 

Moving our lab to a new Campus

A few photos taken during preparation of our lab for a trip to a new Campus:

packing our toys

 

Observations of Saturn

We encourage everybody to take pictures of the sky. Here we show a photo of Saturn taken on the 10th of June 2014 with Panasonic DMC-FZ45 camera with 24x optical zoom. The photo is a result of averaging over 17 single images to reduce noise:

Rings of Saturn

 

New articles on Leakage Radiation Spectroscopy

Two articles on the dispersion relation of a hybrid photonic-plasmonic system have been recently published. The experiments were performed in collaboration with the University of Southern Denmark, using leakage radiation spectroscopy method.

  1. Oksana Kostiučenko, Jacek Fiutowski, Tomasz Kawalec, Vladimir Bordo, Horst-Günter Rubahn, Leszek Jozefowski, “Surface plasmon polariton dispersion relation at organic/dielectric/metal interfaces, Optics Communications 331, 77 (2014)
  2. J. Fiutowski, T. Kawalec, O. Kostiučenko, V. Bordo, H.-G. Rubahn, and L. Jozefowski, “Leakage radiation spectroscopy of organic/dielectric/metal systems: influence of SiO2 on exciton-surface plasmon polariton interaction,” Proc. of SPIE, Nanophotonics V, Eds. David L. Andrews, Jean-Michel Nunzi, Andreas Ostendorf, 9126, 912633 (2014) [DOI]

Copyright 2014 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.


 

Our new laboratory

We present a few pictures of our laboratory at the new university campus:

our new laboratory

 

Our new article in Optics Letters

The article Optical dipole mirror for cold atoms based on a metallic diffraction grating (Tomasz Kawalec, Dobrosława Bartoszek-Bober, Roman Panaś, Jacek Fiutowski, Aleksandra Pławecka i Horst-Günter Rubahn) has been accepted for publication in Optics Letters.

We report on the realization of a plasmonic dipole mirror for cold atoms based on a metallic grating coupler. A cloud of atoms is reflected by the repulsive potential generated by surface plasmon polaritons excited on a reflection gold grating by a 780 nm laser beam. Experimentally and numerically determined mirror efficiencies are close to 100%. The intensity of SPPs above a real grating coupler and the atomic trajectories as well as the momentum dispersion of the atom cloud being reflected are computed. A suggestion is given on how the plasmonic mirror might serve as an optical atom chip.

More information can be found in the Cold atoms and surface plasmon polaritons section (in Polish only at the moment).

 


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