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- Sergei F Mingaleev, Andrey E Miroshnichenko, Yuri S Kivshar, Kurt Busch
- Physical review. E, Statistical, nonlinear, and…
- 2006

We analyze the resonant linear and nonlinear transmission through a photonic crystal waveguide side-coupled to a Kerr-nonlinear photonic crystal resonator. First, we extend the standard coupled-mode theory analysis to photonic crystal structures and obtain explicit analytical expressions for the bistability thresholds and transmission coefficients which… (More)

We introduce a novel algorithm for band structure computations based on multigrid methods. In addition, we demonstrate how the results of these band structure calculations may be used to compute group velocities and effective photon masses. The results are of direct relevance to studies of pulse propagation in such materials.

- Markus Deubel, Georg von Freymann, Martin Wegener, Suresh Pereira, Kurt Busch, Costas M Soukoulis
- Nature materials
- 2004

The past decade has witnessed intensive research efforts related to the design and fabrication of photonic crystals. These periodically structured dielectric materials can represent the optical analogue of semiconductor crystals, and provide a novel platform for the realization of integrated photonics. Despite intensive efforts, inexpensive fabrication… (More)

- Kurt Busch, Sajeev John
- 1998

We present a detailed study of photonic band structure in certain self-organizing systems that self-assemble into large-scale photonic crystals with photonic band gaps ͑PBGs͒ or pseudogaps in the near-visible frequency regime. These include colloidal suspensions, inverted opals, and macroporous silicon. We show that complete three-dimensional PBGs spanning… (More)

- Kurt Busch, Sajeev John
- 1999

We demonstrate that when an optically birefringent nematic liquid crystal is infiltrated into the void regions of an inverse opal, photonic-band-gap (PBG) material, the resulting composite material exhibits a completely tunable PBG. In particular, the three-dimensional PBG can be completely opened or closed by applying an electric field which rotates the… (More)

- Paolo Longo, Peter Schmitteckert, Kurt Busch
- Physical review letters
- 2010

We present a detailed analysis of the dynamics of photon transport in waveguiding systems in the presence of a two-level system. In these systems, quantum interference effects generate a strong effective optical nonlinearity on the few-photon level. We clarify the relevant physical mechanisms through an appropriate quantum many-body approach. Based on this,… (More)

- A A Asatryan, K Busch, R C McPhedran, L C Botten, C M de Sterke, N A Nicorovici
- Physical review. E, Statistical, nonlinear, and…
- 2001

Using the exact theory of multipole expansions, we construct the two-dimensional Green's function for photonic crystals, consisting of a finite number of circular cylinders of infinite length. From this Green's function, we compute the local density of states (LDOS), showing how the photonic crystal affects the radiation properties of an infinite… (More)

- Martin Husnik, Stefan Linden, Richard Diehl, Jens Niegemann, Kurt Busch, Martin Wegener
- Physical review letters
- 2012

Antennas convert propagating radiation to localized electromagnetic energy and to heat. To unambiguously separate between these two aspects, one needs to quantitatively determine the antenna scattering and absorption cross-section spectra. By using a spatial modulation technique combined with a common-path interferometer and lithographically fabricated… (More)

- Kai Stannigel, Michael König, Jens Niegemann, Kurt Busch
- Optics express
- 2009

We apply the three-dimensional Discontinuous-Galerkin Time-Domain method to the investigation of the optical properties of bar- and V-shaped metallic nanostructures on dielectric substrates. A flexible finite element-like mesh together with an expansion into high-order basis functions allows for an accurate resolution of complex geometries and strong field… (More)

- Nils Feth, Michael König, +5 authors Stefan Linden
- Optics express
- 2010

Extinction cross-section spectra of split-ring-resonator dimers have been measured at near-infrared frequencies with a sensitive spatial modulation technique. The resonance frequency of the dimer's coupled mode as well as its extinction cross-section and its quality factor depend on the relative orientation and separation of the two split-ring resonators.… (More)