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.

2001

Mapping and manipulating whispering gallery modes of a microsphere resonator with a near-field probe

Stephan Götzinger, S. Demmerer, O. Benson, Vahid Sandoghdar

Journal of Microscopy-Oxford 202 117-121 (2001) | Journal

We report high spatial resolution mapping of high-Q whispering gallery modes in microsphere resonators with a near-field probe. We present experimental results on the effect of Q-factor degradation when the probe interacts with the evanescent field and discuss future applications of our experimental set-up for realization of novel nanolasers and nano light-emitting-diodes.

Towards controlled coupling between a high-Q whispering-gallery mode and a single nanoparticle

Stephan Götzinger, O. Benson, Vahid Sandoghdar

Applied Physics B: Lasers and Optics 73 825-828 (2001) | Journal

We discuss our recent experiments that aim at the realization of coupling between a nano-emitter that is placed at the extremity of a sharp glass-fiber tip and a high-Q whispering-gallery mode. We quantify the influence of the tip using different probes and modes of a microsphere with different quality factors and mode extensions. Our measurements show that a micron-sized tip results in a substantial perturbation of the modes. On the contrary, by using a tip of diameter about 100 nm it should be possible to couple a nanoparticle to the most-confined modes of a microsphere without spoiling quality factors even as high as 10(8).

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