Heidelberg 2015 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 62: Poster: Quantum Optics and Photonics III
Q 62.54a: Poster
Thursday, March 26, 2015, 17:00–19:00, C/Foyer
Rayleigh Scattering in Open-Access Microcavities — •Eric Bersin1,2, Julia Benedikter1,2, Matthias Mader1,2, Thomas Hümmer1,2, Theodor Hänsch1,2, and David Hunger1,2 — 1Ludwig-Maximilians-Universität München — 2Max-Planck-Institute for Quantum Optics
The small mode volumes of optical microcavities provide enhanced light-matter coupling, allowing application in experiments ranging from optomechanics (1) to quantum emitters (2). Recently, interest has developed in fibre-based Fabry-Perot microcavities (3). These cavities have high finesse, sub-cubic micrometer mode volumes, and an open-access cavity volume. Unlike other optical resonators (photonic crystals, WGM resonators, etc.), these cavities have a readily tunable length, and offer unique capabilites for mode mixing by virtue of their variable effective numerical apertures. The combination of these properties gives these devices intriguing potential for application, most recently in scanning cavity microscopy (4). However, such experiments require placing objects inside the cavity mode volume, raising questions about how the presence of such scatterers might affect the cavity's performance. We report theoretical predictions and experimental results of how Rayleigh scatterers in the cavity mode volume affect fundamental properties such as finesse and mode mixing.
(1) P. Asenbaum et al, Nature Communications 4, 2743 (2013).
(2) H. Kaupp et al, Phys. Rev. A 88, 053812 (2013).
(3) D. Hunger et al, New J. Phys. 12, 065038 (2010).
(4) M. Mader et al, arXiv:1411.7180 (2014).