Regensburg 2019 – wissenschaftliches Programm

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KFM: Fachverband Kristalline Festkörper und deren Mikrostruktur

KFM 4: Focus: Whispering-Gallery-Mode Resonators

Montag, 1. April 2019, 09:30–13:30, H47

Whispering Gallery Mode (WGM) resonators confine and enhance electro - magnetic fields almost entirely within a transparent dielectric. Strong light - matter interactions such as optical nonlinearities are the consequence. Therefore, these resonators are a link between the two continuously merging worlds of photonics and solid state physics. Research and applications using this type of resonators rely heavily on the availability of high quality linear and nonli near materials. Furthermore, advanced material processing for the fabrication of high quality resonators, in particular for on - chip integration is required. On the other hand, the strong light - matter interaction allows to study linear and nonlinear dielec tric material properties with high sensitivity over a huge wavelength regime from visible over infrared down to terahertz and microwave frequencies. WGM resonators can also serve as a widely tunable source of classical as well as quantum light which can be used for different types of high precision spectroscopy. The aim of this session is to cover the topics of this field and bring together the communities of photonics and solid state physics.

Chair: Florian Sedlmeir (Max Planck Institute for the Science of Light)

	09:30	KFM 4.1	Hauptvortrag: Mixing microwave and light: up-conversion and frequency combs — •Harald G. L. Schwefel
	10:00	KFM 4.2	Frequency comb up- and down-conversion in synchronously driven χ(2) optical microresonators — •Jan Szabados, Simon Johannes Herr, Victor Brasch, Ewelina Obrzud, Yuechen Jia, Steve Lecomte, Karsten Buse, Ingo Breunig, and Tobias Herr
	10:20	KFM 4.3	Electro-optic tuning of whispering gallery resonators made of KTN crystals — •Ingo Breunig, Jan Szabados, and Karsten Buse
	10:40	KFM 4.4	Adiabatic frequency conversion in high-Q lithium niobate whispering gallery resonators — •Yannick Minet, Luís Reis, Ingo Breunig, and Karsten Buse
	11:00	KFM 4.5	Dielectric tuning of millimeter-wave whispering-gallery modes for electro-optic phase matching — •Gabriel Santamaria Botello, Kerlos Atia Abdalmalak, Daniel Segovia Vargas, Luis Enrique Garcia Muñoz, and Zoya Popovic
	11:20		Break 20 min
	11:40	KFM 4.6	Hauptvortrag: Nonlinear whispering gallery resonators for quantum optical technologies — •Christoph Marquardt
	12:10	KFM 4.7	Non-classical light from a nonlinear crystalline whispering gallery mode resonator — •Alexander Otterpohl, Florian Sedlmeir, Thomas Dirmeier, Ulrich Vogl, Gerhard Schunk, Golnoush Shafiee, Dmitry Strekalov, Harald G. L. Schwefel, Tobias Gehring, Ulrik L. Andersen, Gerd Leuchs, and Christoph Marquardt
	12:30	KFM 4.8	Single photon generation in a whispering gallery mode resonator — •Golnoush Shafiee, Florian Sedlmeir, Gerhard Schunk, Alexander Otterpohl, Ulrich Vogl, Dmitry Strekalov, Harald G. L. Schwefel, Gerd Leuchs, and Christoph Marquardt
	12:50	KFM 4.9	The optical Möbius strip cavity: Tailoring geometric phases and far fields — •Jakob Kreismann and Martina Hentschel
	13:10	KFM 4.10	Super-directional light emission from arrays of deformed microcavities — •Jakob Kreismann, Martina Hentschel, Arne Behrens, and Stefan Sinzinger