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The field distributions of various modes in rectangular waveguides filled with uniaxial media are presented. The presented cases include aligned cases when the optic axis is parallel to one of the coordinate axes and the tilted cases when the optic axis is not parallel to any of the coordinate axes but still lies within one of the two side-wall planes. In the aligned uniaxial-z case the analytical...
Computational results of the cutoff frequencies of the hybrid modes in a rectangular waveguide filled with the uniaxial medium are presented. The optic axis orientation of the inserted uniaxial medium is tilted from any of the coordinate axes but lying in one of the sidewall planes of the rectangular waveguide. The calculated results not only show the changes of the cutoff frequency of the lowest...
Solutions of a metallic rectangular waveguide filled with uniaxial medium are obtained with a new approach. The direction of the optic axis is tilted but lying in one of the sidewall planes of the waveguide. The formulation is based on decomposition into ordinary and extraordinary waves. The proposed method seeks wavenumbers of supported travelling modes, and is also able to calculate both cutoff...
A rectangular waveguide filled with uniaxial medium is treated. Different orientations of the optic axis are considered. Results of wave decompositions with respect to the optic axis are presented and compared with conventional transverse-to-z solutions. Computations show that the effect of anisotropy not only changes the field distributions, but also leads to changes of dominant modes in the waveguide.
Ion implantation is being used to fabricate silicon-nanocrystal (Si-nc) er-bium-doped slot waveguide structures. Photoluminescence (PL) measurements are used to investigate the luminescent and erbium sensitisation properties while Rutherford backscattering spectrometry (RBS) is used to provide structural information. This study is a preliminary step toward development of active elements for silicon...
A scalable polymer backplane for dense integration of photonics with lab-on-a-chip systems is presented. A high-throughput cell culture chip employing waveguides for monitoring and control of culture conditions is used to illustrate integration options.
Multimode polymer waveguides and out-of-plane bends are fabricated to create a waveguide sensor array capable of excitation and detection of fluorescence based sensors.
A platform is developed which utilizes polymer materials used for the chips to create waveguide based optical components. With the fabrication method demonstrated, waveguides, power splitters, combiners and bends can be introduced and integrated cheaply into existing biochips
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