Author Archives: Wolf von Klitzing

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Making BECs smile.

Just for fun… BECs can also smile:  This is a BEC loaded from a dipole trap into a TAAP trap and then propagated for some time. The picture is an absorption  image with darker standing for a higher number of atoms.

We are also learning to write  😉 … for example the letter H

An H-shaped thermal cloud of Rb87 atoms (black is more atoms)

And our latest addition …  the number 9

A BEC in a ring-accelerator. We first load a BEC into a dipole trap and then into the ring. We then accelerate the BEC to speeds, where the centripetal confinement is not sufficient to keep the BEC in the storage ring. (white=more atoms)

 

And of course our smiling BEC

A smiling BEC — a reproducible chance event.
(black is more atoms)

Anamika Nair Karunakaran

05/2016-08/2016 Intern on an LabView project

Anamika joined us from the Cochin University of Science and Technology South Kalamassery in Kerala, India. She went on to do her master in the Quantum Information with Cold Atoms and Non-classical Light Group of Morgan Mitchel at the ICFO – The Institute of Photonic Sciences, Barcelona, Spain. She is now working on her PhD at the Technical University of Denmark in collaboration with the laser manufacturer NKT Photonics. She will be part of the EU project  ETN-MEFISTA (Multi-scale fibre-based optical frequency combs: science, technology and applications).

She has successfully defended her PhD at the University of Delft. Her topic was “Investigations of microresonator ­based frequency combs”

Her Linked-in page is here.

Towards rotation sensing with a single atomic clock

Proc. SPIE   9900   990007-990007-14 (2016)

T. Fernholz, R. Stevenson, M. R. Hush, I. V. Lesanovsky, T. Bishop, F. Gentile, S. Jammi, T. Pyragius, M. G. Bason, H. Mas, S. Pandey, G. Vasilakis, K. Poulios, and W. von Klitzing

http://dx.doi.org/10.1117/12.2229878

We discuss a scheme to implement a gyroscopic atom sensor with magnetically trapped ultra-cold atoms. Unlike standard light or matter wave Sagnac interferometers no free wave propagation is used. Interferometer operation is controlled only with static, radio-frequency and microwave magnetic fields, which removes the need for interferometric stability of optical laser beams. Due to the confinement of atoms, the scheme may allow the construction of small scale portable sensors. We discuss the main elements of the scheme and report on recent results and efforts towards its experimental realization.

One of the possibilities discussed are state dependent TAAPs:

fernholz2016ps-rotating-rings

fernholz2016ps-ring-trap

However also chip scale solutions are discussed.

 

 

 

 

 

Our Atom Laser is a news star

Out Atom Laser in the Press:

Our Ultra-Bright Atom Laser has selected the article as a New Journal of Physics Highlight of the year 2014.

Phys.org has published a nice semi-popular article about the paper. The New Scientist has also written a rather popularized article about our atom laser.
Note that we have not been given access to any of these articles before publication and are not responsible for its rather imaginative content.

   

An article in Greek can be found in a number of newspapers, e.g. at Kerdos.gr and in.gr
Article at Kerdos and  Article at In.gr

Sigma Live also have made a video interview in Greek about the atom laser.

Wolf von Klitzing

2005 – now: Head of Group

2020-now Group Leader of the Space Optics Group at IESL-FORTH
2005-now Group Leader of the BEC and Matterwaves Groupat IESL-FORTH
2020-2022 Head of the Scientific Council of IESL-FORTH
2006-2010 Marie-Curie Excellence Group Leader
2000-2004 Post-doctoral Fellow with Prof. Walraven at the Institute for Atomic and Molecular Physics (AMOLF) and the Van der Waals Zeemann Institute of the University of Amsterdam
1999-2000 Marie Curie post-doctoral Fellow in the group of Prof. De Martini, University of Rome ‘La Sapienza’, Italy
1996 – 1999 Marie Curie Postoc at the ENS with Serge Haroche
1992 – 1996 PhD Student at Cavendish Laboratory of the Cambridge University

Email: wvk@iesl.forth.gr 

CV Wolf von Klitzing (241202_1638WK)Download