Results 191 to 200 of about 1,124,267 (228)

Scattering at sidewall roughness in photonic crystal slabs

Optics Letters, 2003
We have simulated the effect of sidewall roughness in photonic-crystallike structures with different vertical refractive-index contrast. We treated the scattering off a sidewall irregularity as a radiating dipole excited by the incident waveguide mode.
Wim, Bogaerts, Peter, Bienstman, Roel, Baets   +2 more
openaire   +2 more sources

Correlation Effects in Disordered Metallic Photonic Crystal Slabs

Physical Review Letters, 2007
We analyze the influence of correlations on the optical properties of disordered metallic photonic crystal slabs experimentally and theoretically. Different disorder models with different nearest-neighbor correlations are considered. We present a theory that allows us to quantitatively calculate the optical properties of the different samples.
Nau, D., Schönhardt, A., Bauer, C., Christ, A., Zentgraf, T., Kuhl, J., Klein, M., Giessen, H.   +7 more
openaire   +3 more sources

Direct observation of photonic modes in photonic crystal slabs

2008 10th Anniversary International Conference on Transparent Optical Networks, 2008
Guided-mode resonances at the gamma-point are characterized via normal-incidence transmission measurements through photonic crystal slabs. By placing the photonic crystal slab between two orthogonally oriented polarization filters, direct light transmission is suppressed.
Lemmer, U., Gerken, M., Nazirizadeh, Y., Müller, J. G., Geyer, U.   +4 more
openaire   +1 more source

Photon Dynamics in Coupled-Cavities in Photonic Crystal Slabs

Conference on Lasers and Electro-Optics 2012, 2012
We present a formalism to model the coupling of photons and quantum dots in coupled cavities in photonic crystal slabs using a quasimode-based master equation. We show the effects of quasimode non-orthogonality.
Mohsen Kamandar Dezfouli, Marc M. Dignam
openaire   +1 more source

Coherent Thermal Antenna Using a Photonic Crystal Slab

Physical Review Letters, 2006
We show that a photonic crystal film can emit coherent thermal radiation. We demonstrate the key role of leaky waves existing at the air-photonic crystal interface. The frequency and direction of emission depend on the lattice parameters. This paves the way towards the design of coherent infrared antennas.
Carminati, Rémi, Greffet, Jean-Jacques, Laroche, Marine   +2 more
openaire   +2 more sources

Fano resonances of photonic crystal slabs

ACOFT/AOS 2006 - Australian Conference on Optical Fibre Technology/Australian Optical Society, 2006
A Bloch mode theory for diffraction of plane waves by planar PC slabs is developed. The theory provides physical insight into the origin of Fano resonances, allowing a simple pole model to be deduced rigorously.
Michael Byrne, Lindsay Botten, Ara Asatryan, Nicolae Nicorovici, Andrew Norton, Ross McPhedran, C. Martijn de Sterke   +6 more
openaire   +1 more source

Coupling into photonic crystal slab waveguides

Postconference Digest Quantum Electronics and Laser Science, 2003. QELS., 2003
An adiabatic taper method is presented for coupling light into photonic crystal defect waveguides in a square lattice of circular dielectric rods. The taper consists of two coupling stages.
S. Assefa, P. Bientsman, P. Rakich, S.J. Johnson, J.D. Joannopoulos, G.S. Petrich, L.A. Kolodziejski, E.P. Ippen   +7 more
openaire   +1 more source

Suspended photonic crystal slabs for biosensing

SPIE Proceedings, 2010
Label-free optical biosensors based on photonic crystal slabs offer high sensitivity and simplified coupling to incoming free-space radiation. Biosensing results from detecting shifts in guided resonance frequency spectral location based on changes in index of refraction due to analytes binding at the PC slab surface. We have evaluated biosensing for
Mohamed El Beheiry, Victor Liu, Shanhui Fan, Ofer Levi   +3 more
openaire   +1 more source

Characterization of photonic bands in metal photonic crystal slabs

Optics Communications, 2014
Abstract By rotating metal photonic crystal (PC) slab around ΓK and ΓM lattice directions, transmission spectra were measured to study photonic bands in such metal PC with a triangular lattice. We found that the photonic band diagram for the ΓM lattice direction is different from that for the ΓK direction.
Lin Chen, Khanh Viet Truong, Zhaoxiang Cheng, Zhou Li, Yiming Zhu   +4 more
openaire   +1 more source

Photonic-Band Structure of Magnetic Photonic Crystal Slabs

2005 Asia-Pacific Microwave Conference Proceedings, 2006
In this paper, we introduce a rigorous computational method for the evaluation of the band structure of magnetic photonic crystal (MPC) slabs. With the help of this method, the full-wave analysis of the structure can be reduced to the analysis of an equivalent multi-conductor transmission line.
H. Ajam, M. Shahabadi
openaire   +1 more source