activity
20102022
most citedBeyond the Jaynes-Cummings model: circuit QED in the ultrastrong coupling regime

1.3k citations · 2k across the 11 of their papers we have counts for

collaborators

12 papers

physics.optics2022

A highly stable and fully tunable open microcavity platform at cryogenic temperatures

Maximilian Pallmann, Timon Eichhorn, Julia Benedikter +3

Open-access microcavities are a powerful tool to enhance light-matter interactions for solid-state quantum and nano systems and are key to advance applications in quantum technolog…

cond-mat.mes-hall2022★ 4 cited

Ultra-Sensitive Extinction Measurements of Optically Active Defects in Monolayer MoS

Florian Sigger, Ines Amersdorffer, Alexander Hötger +12

We utilize cavity-enhanced extinction spectroscopy to directly quantify the optical absorption of defects in MoS generated by helium ion bombardment. We achieve hyperspectral i…

physics.optics2022★ 11 cited

Scanning cavity microscopy of a single-crystal diamond membrane

Jonathan Körber, Maximilian Pallmann, Julia Heupel +6

Spin-bearing color centers in the solid state are promising candidates for the realization of quantum networks and distributed quantum computing. A remaining key challenge is their…

quant-ph2020★ 73 cited

Dynamic control of Purcell enhanced emission of erbium ions in nanoparticles

Bernardo Casabone, Chetan Deshmukh, Shuping Liu +6

The interaction of single quantum emitters with an optical cavity enables the realization of efficient spin-photon interfaces, an essential resource for quantum networks. The dynam…

physics.optics2019

Transverse-mode coupling effects in scanning cavity microscopy

Julia Benedikter, Thea Moosmayer, Matthias Mader +2

Tunable open-access Fabry-Pérot microcavities enable the combination of cavity enhancement with high resolution imaging. To assess the limits of this technique originating from bac…

physics.optics2018★ 61 cited

Cavity-enhanced spectroscopy of a few-ion ensemble in Eu3+:Y2O3

Bernardo Casabone, Julia Benedikter, Thomas Hümmer +7

We report on the coupling of the emission from a single europium-doped nanocrystal to a fiber-based microcavity under cryogenic conditions. As a first step, we study the sample pro…

quant-ph2016★ 114 cited

Cavity-enhanced single photon source based on the silicon vacancy center in diamond

Julia Benedikter, Hanno Kaupp, Thomas Hümmer +7

Single photon sources are an integral part of various quantum technologies, and solid state quantum emitters at room temperature appear as a promising implementation. We couple the…

physics.optics2015★ 72 cited

Cavity-enhanced Raman Microscopy of Individual Carbon Nanotubes

Thomas Hümmer, Jonathan Noe, Matthias S. Hofmann +3

Raman spectroscopy reveals chemically specific information and provides label-free insight into the molecular world. However, the signals are intrinsically weak and call for enhanc…

physics.optics2015★ 80 cited

Transverse-mode coupling and diffraction loss in tunable Fabry-Pérot microcavities

Julia Benedikter, Thomas Hümmer, Matthias Mader +4

We report on measurements and modeling of the mode structure of tunable Fabry-Pérot optical microcavities with imperfect mirrors. We find that non-spherical mirror shape and finite…

cond-mat.mes-hall2013★ 97 cited

Coupling single molecule magnets to quantum circuits

M. D. Jenkins, T. Hümmer, M. J. Martínez-Pérez +3

In this work we study theoretically the coupling of single molecule magnets (SMMs) to a variety of quantum circuits, including microwave resonators with and without constrictions a…

cond-mat.mes-hall2012★ 185 cited

Weak and Strong coupling regimes in plasmonic-QED

T. Hümmer, F. J. García-Vidal, L. Martín-Moreno +1

We present a quantum theory for the interaction of a two level emitter with surface plasmon polaritons confined in single-mode waveguide resonators. Based on the Green's function a…

cond-mat.mes-hall2010★ 1.3k cited

Beyond the Jaynes-Cummings model: circuit QED in the ultrastrong coupling regime

T. Niemczyk, F. Deppe, H. Huebl +9

In cavity quantum electrodynamics (QED), light-matter interaction is probed at its most fundamental level, where individual atoms are coupled to single photons stored in three-dime…