1. Home
  2. About Us
  3. MPL People
  4. Stephan Götzinger

Prof. Stephan Götzinger

  • Professor
  • Room: A.3.230
  • Telephone: +49 9131 7133315
  • E-mail

My research is focused on solid-state quantum optics. In the past few years I have, for example, investigated methods to collect single photons with near-unity efficiency. Another emphasis is on techniques which can be used to enhance the interaction of a single photon with a single emitter.

2012

Single-Photon Spectroscopy of a Single Molecule

Y. L. A. Rezus, S. G. Walt, R. Lettow, A. Renn, G. Zumofen, S. Goetzinger, V. Sandoghdar

Physical Review Letters 108 093601 (2012) | Journal

Efficient interaction of light and matter at the ultimate limit of single photons and single emitters is of great interest from a fundamental point of view and for emerging applications in quantum engineering. However, the difficulty of generating single-photon streams with specific wavelengths, bandwidths, and power as well as the weak interaction probability of a single photon with an optical emitter pose a formidable challenge toward this goal. Here, we demonstrate a general approach based on the creation of single photons from a single emitter and their use for performing spectroscopy on a second emitter situated at a distance. While this first proof of principle realization uses organic molecules as emitters, the scheme is readily extendable to quantum dots and color centers. Our work ushers in a new line of experiments that provide access to the coherent and nonlinear couplings of few emitters and few propagating photons.

Spontaneous emission enhancement of a single molecule by a double-sphere nanoantenna across an interface

K-G. Lee, H. Eghlidi, X-W. Chen, A. Renn, S. Goetzinger, V. Sandoghdar

Optics Express 20 23331-23338 (2012) | Journal

We report on two orders of magnitude reduction in the fluorescence lifetime when a single molecule placed in a thin film is surrounded by two gold nanospheres across the film interface. By attaching one of the gold particles to the end of a glass fiber tip, we could control the modification of the molecular fluorescence at will. We find a good agreement between our experimental data and the outcome of numerical calculations. (C) 2012 Optical Society of America

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