In-plane All-photonic Transduction Method For Silicon Photonic Microcantilever Array Sensor Jong Wook Noh Department of Electrical and Computer Engineering Doctor of Philosophy We have invented an in-plane all-photonic transduction method for photonic microcantilever arrays that is scalable to large arrays for sensing applications in both bioand nanotechnology. Our photonic transduction method ...

The effect of waveguide boundary conditions on the spectrum resulting from the backscatter of lower hybrid waves near a waveguide array is calculated. It is found that the resulting k spectrum is peaked at multiples of 7r/b, where b is the waveguide width. This calculation may partially explain recent lower hybrid heating results on Alcator A.

A black phosphorus photodetector is utilized to investigate the light-scattering patterns of a silicon waveguide through wavelength- and polarization-dependent scanning photocurrent measurements. The photocurrent signals exhibit similar patterns to the light-intensity distribution of the waveguide calculated by finite-difference time-domain simulations, suggesting that photoexcited electron-hol...

Closed-form analytical expressions and normalized charts provide the conditions for the maximum sensitivity of transverse electric (TE) and transverse magnetic (TM) evanescent-wave step-index waveguide sensors. The analysis covers both cases where the measurand is homogeneously distributed in the semi-infinite waveguide cover, and where it is an ultrathin film at the waveguide-cover interface.

This paper offers a brief introduction to silicon photonics including the basic optical waveguide, passive optical circuit performance, the addition of doped pand njunctions adjacent to the intrinsic silicon waveguide to inject a current across the waveguide, free-carrier dispersion, performance of the variable optical attenuator (VOA), and a monolithic, dual-function splitter-VOA array circuit.

We demonstrate efficient generation of photon pairs at 1316 nm in a fiber-coupled type-II phase-matched Rb-indiffused waveguide in periodically poled KTiOPO(4). The integrated waveguide source has a pair production rate of 2 x 10(7)/s/mW in a 1.08-nm bandwidth, in good agreement with a theoretical model that takes into account the transversal momentum imparted on the phase matching function by ...

This paper presents an overview of substrate integrated waveguide (SIW) design activities at the University of Victoria. Mode-matching techniques (MMTs) are employed to facilitate the design of planar SIW circuits as well as surface mounted waveguide (SMW) components. Active component integration and antenna design employ commercially available field solvers. Each category is highlighted by a s...

The extension of SPARQL 1.1 of property paths now o↵ers a type of regular path query for RDF graph databases. While eminently useful, these queries are di cult to optimize to evaluate e ciently. We have embarked on a project we call Waveguide to build a cost-based optimizer for SPARQL queries with property paths. Waveguidemaps the property path to a waveguide plan (WGP) composed of wavefront au...

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