2015

Efficient multiple time-stepping algorithms of higher order
Demirel, A, Niegemann, J, Busch, K, and Hochbruck, M (2015)
Journal of Computational Physics 285:133
Multiple time-stepping (MTS) algorithms allow to efficiently integrate large systems of ordinary differential equations, where a few stiff terms restrict the timestep of an otherwise non-stiff system...

2014

Frequency-Resolved Reciprocal-Space Mapping of Visible Spontaneous Emission from 3D Photonic Crystals
Froehlich, O, Fischer, J, Wolff, C, Busch, K, and Wegener, M (2014)
Advanced Optical Materials 2:849
Information on propagating and evanescent Bloch modes as well as on remaining disorder is provided by experiments on titania woodpile photonic crystals with a complete three-dimensional photo­nic...
Quantum friction and fluctuation theorems
F. Intravaia, R. O. Behunin, and D. A. R. Dalvit (2014)
Physical Review A 89:050101(R)
We use general concepts of statistical mechanics to compute the quantum frictional force on an atom moving at constant velocity above a planar surface. We derive the zero-temperature frictional force...
Spoof polariton enhanced modal density of states in planar nanostructured metallic cavities
P. S. Davids, F. Intravaia, and D.A.R. Dalvit (2014)
Optics Express 22:12424
Spoof surface modes on nanostructured metallic surfaces are known to have tailorable dispersion dependent on the geometric characteristics of the periodic pattern. Here we examine the spoof plasmon...
Disordered photonic crystals: a cluster coherent potential approach using photonic Wannier functions
Koehl, M, Wolff, C, and Busch, K (2014)
Journal of the Optical Society of America B 31:2246
We present a cluster coherent potential approach for disordered photonic crystals (PhCs) that is based on maximally localized Wannier functions. In particular, the Wannier basis facilitates an...
Scanning Single Quantum Emitter Fluorescence Lifetime Imaging: Quantitative Analysis of the Local Density of Photonic States
Schell, A, Engel, P, Werra, J, Wolff, C, Busch, K, and Benson, O (2014)
Nano Letters 14:2623
Their intrinsic properties render single quantum systems as ideal tools for quantum enhanced sensing and microscopy. As an additional benefit, their size is typically on an atomic scale that enables...
Interslit Coupling via Ultrafast Dynamics across Gold-Film Hole Arrays
Walther, R, Carmeli, I, Schneider, R, Gerthsen, D, Busch, K, Matyssek, C, Shvarzman, A, Maniv, T, Richter, S, and Hagai, C (2014)
Journal of Physical Chemistry C 118:11043
One-dimensional arrays of submicrometer rectangular holes in 200 nm thin gold films are investigated using electron energy loss spectroscopy combined with scanning transmission electron microscopy (...

2013

Quantitative spectroscopy on individual wire, slot, bow-tie, rectangular, and square-shaped optical antennas
Husnik, M, Niegemann, J, Busch, K, and Wegener, M (2013)
Optics Letters 38:4597
By using a recently introduced approach combining a focus-modulation technique with a common-path interferometer, we measure quantitatively the extinction, scattering, and absorption cross-section...
Mode structure and polaritonic contributions to the Casimir effect in a magnetodielectric cavity
Harald R. Haakh and Francesco Intravaia (2013)
Physical Review A 88:052503
We present a full analysis of the mode spectrum in a cavity formed by two parallel plates, one of which is magnetodielectric (metamaterial) while the other one is metallic, and obtain dispersion...
Comparison of electron energy-loss and quantitative optical spectroscopy on individual optical gold antennas
Husnik M, von C F, Irsen S, Linden S, Niegemann J, Busch K, and Wegener M (2013)
Nanophotonics 2:241
Using a rather large set of different individual metallic optical antennas, we compare directly measured electron energy-loss spectra with measured quantitative optical extinction and scattering...
Correlated photons in one-dimensional waveguides
Matthias Moeferdt, Peter Schmitteckert, and Kurt Busch (2013)
Optics Letters 38:3693
We study two-photon transport in a one-dimensional waveguide with a side-coupled two-level system. Depending on the momentum of the incoming photons, we find that the nature of the scattering process...
Photon transport in one-dimensional systems coupled to three-level quantum impurities
Christoph Martens, Paolo Longo, and Kurt Busch (2013)
New Journal of Physics 15:083019
We discuss the transport properties of a single photon in a one-dimensional waveguide with an embedded three-level atom and utilize both stationary plane-wave solutions and time-dependent transport...
Abandoned Functionality of Thin-Film Opal Photonic Crystals
Küchenmeister, J, Wolff, C, Busch, K, Peschel, U, and Romanov, S (2013)
Advanced Optical Materials 12:952
Angle-resolved polarized transmission spectra of thin-film opals are studied experimentally and theoretically as a function of the azimuthal rotation of the plane of incidence at different angles of...
Generation of Wannier functions for photonic crystals
Christian Wolff, Patrick Mack, and Kurt Busch (2013)
Physical Review B 88:075201
We present an approach for the efficient generation of Wannier functions for Photonic Crystal computations that is based on a combination of group-theoretical analysis and efficient minimization...
Titania woodpiles with complete three-dimensional photonic bandgaps in the visible
Andreas Frölich, Joachim Fischer, Thomas Zebrowski, Kurt Busch, and Martin Wegener (2013)
Advanced Materials 25:3588
Titania woodpile photonic crystals are fabricated by a combination of stimulated-emission depletion direct laser writing and a novel titania double-inversion procedure. The procedure relies on atomic...
Strongly coupled slow-light polaritons in one-dimensional disordered localized states
Jie Gao, Sylvain Combrie, Baolai Liang, Peter Schmitteckert, Gaelle Lehoucq, Stephane Xavier, XinAn Xu, Kurt Busch, Diana L Huffaker, Alfredo De Rossi, and Chee W Wong (2013)
Scientific Reports 3:1994
Cavity quantum electrodynamics advances the coherent control of a single quantum emitter with a quantized radiation field mode, typically piecewise engineered for the highest finesse and confinement...
Spectra of coherent resonant light pulses interacting with a two-level atom in a waveguide
Julia FM Werra, Paolo Longo, and Kurt Busch (2013)
Physical Review A 87:063821
We present a theoretical analysis of the spectral features of coherent light pulses traveling in a one-dimensional waveguide with an embedded two-level quantum system. In particular, we clarify and...
B-spline modal method: A polynomial approach compared to the Fourier modal method
Michael Walz, Thomas Zebrowski, Jens Küchenmeister, and Kurt Busch (2013)
Optics Express 21:14683
A detailed analysis of the B-spline Modal Method (BMM) for one- and two-dimensional diffraction gratings and a comparison to the Fourier Modal Method (FMM) is presented. Owing to its intrinsic...
Simple magneto-optic transition metal models for time-domain simulations
C. Wolff, R. Rodriguez-Oliveros, and K. Busch (2013)
Optics Express 21:12022
Efficient modelling of the magneto-optic effects of transition metals such as nickel, cobalt and iron is a topic of growing interest within the nano-optics community. In this paper, we present a...
In situ observation of plasmon tuning in a single gold nanoparticle during controlled melting
A. Kuhlicke, S. Schietinger, C. Matyssek, K. Busch, and O. Benson (2013)
Nano Letters 13:2041
In this Letter we study the relations among shape, symmetry, and plasmon resonance shift in a single gold nanoparticle during laser melting. A beam of an argon ion laser is focused on a selected...

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