1. Home
  2. About Us
  3. MPL People
  4. Tobias Utikal

Dr. Tobias Utikal

  • Wissenschaftlicher Referent (Research Coordinator)
  • Room: A.3.232
  • Telephone: +49 9131 7133316
  • E-mail

My research interest ranges from cryogenic Nano-Quantum-Optics with single emitters to Nano-Bio-Photonics using iSCAT microscopy. As research coordinator of the division I am involved in many research projects pushing the experiments forward, coordinating resources, and preserving the knowledge in the group. In various exploratory side-projects I am breaking new ground for future experiments.

I am always interested in the latest technology developments of narrow-band lasers, cryogenics, nano-positioning, microscopy at and beyond the diffraction limit, single photon detectors, and scientific cameras.

2015

Spectroscopic detection of single Pr3+ ions on the H-3(4)-D-1(2) transition

Emanuel Eichhammer, Tobias Utikal, Stephan Goetzinger, Vahid Sandoghdar

New Journal of Physics 17 083018 (2015) | Journal

Rare earth ions in crystals exhibit narrow spectral features and hyperfine-split ground states with exceptionally long coherence times. These features make them ideal platforms for quantum information processing in the solid state. Recently, we reported on the first high-resolution spectroscopy of single Pr3+ ions in yttrium orthosilicate nanocrystals via the H-3(4)-P-3(0) transition at a wavelength of 488 nm. Here we show that individual praseodymium ions can also be detected on the more commonly studied H-3(4)-D-1(2) transition at 606 nm. In addition, we present the first measurements of the second-order autocorrelation function, fluorescence lifetime, and emission spectra of single ions in this system as well as their polarization dependencies on both transitions. Furthermore, we demonstrate that by a proper choice of the crystallite, one can obtain narrower spectral lines and, thus, resolve the hyperfine levels of the excited state. We expect our results to make single-ion spectroscopy accessible to a larger scientific community.

Nano-Quantenoptik

Tobias Utikal, Emanuel Eichhammer, Benjamin Gmeiner, Andreas Maser, Daqing Wang, Pierre Türschmann, Hrishikesh Kelkar, Nir Rotenberg, Stephan Götzinger, et al.

MPG Jahrbuch 2015 (2015) | Journal

Nanoskopische Quantensysteme in einem Festkörper finden in der Quantenoptik zunehmend an Bedeutung. Deren Integrierbarkeit in photonische Nanostrukturen machen sie zu aussichtsreichen Kandidaten zur Realisierung von zukünftigen Quantennetzwerken. Als Grundbaustein konnte kürzlich die effiziente Kopplung von einzelnen Molekülen an photonische Wellenleiterstrukturen gezeigt werden. Mit neuartigen Mikroresonatoren ist es möglich, die optische Kopplung zwischen einzelnen Quantensystemen zu untersuchen. Unterdessen kommen sogar einzelne Ionen in einem Kristall in der Nano-Quantenoptik zum Einsatz.

Tobias Utikal studied Physics at University of Bonn from 2001 to 2007. For his Diploma thesis on “Ultrafast Spectroscopy of Metallic Photonic Crystals” he moved to University of Stuttgart where he worked in the group of Prof. Harald Giessen. The following PhD thesis on “Ultrafast Nonlinear Spectroscopy of Hybrid Plasmonic Systems” he partially conducted at the Max Planck Institute for Solid State Research in Stuttgart. In 2011 he joined the Group of Prof. Vahid Sandoghdar at ETH Zurich as a postdoc. After the move of the group to the Max Planck Institute for the Science of Light (MPL) in Erlangen he became a permanent senior scientist and is acting as research coordinator of the division. In his function as safety officer he is member of the work safety council of the institute. Tobias has been elected as the scientific staff representative of MPL from 2015 – 2021.

MPL Research Centers and Schools

© Max Planck Institute for the Science of Light

Data Collection

This website uses cookies to ensure you get the best experience on our website.

Get more info about used cookies
Cookie optin by Olli machts