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We report the detection of dissolved avidin concentrations as low as 14.5 nM using functionalized slotted photonic crystal cavities, and highlight their potential use for dense sensor arrays given their micron scale size.
We use photonic crystal nanocavities to enhance the light emission for Erbium implanted silicon. This is a promising route for the realization of a silicon light source.
In this work, wavelength-resolved laser light scattering can be used as a high-resolution technique for a precise characterization of passive photonic crystal (PhC) nanocavities with very high Q factors, thus offering a valid alternative to current experimental approaches based on waveguide coupling or photoluminescence . The effect of disorder on the symmetry of the cavity mode is studied. By measuring...
We demonstrate spectral and spatial reconfigurability of silicon photonic crystal cavities by microfluidic infiltration of selected air-holes. High Q-factors for a broad range of cavity lengths are shown, highlighting the flexibility of our approach.
We present experimental evidence of light guiding and confinement in suspended slotted photonic crystal waveguides and cavities, where light is confined in extremely small air volumes, for slow light and chemical sensing applications.
We demonstrate post-processed, reconfigurable microfluidic double-heterostructure cavities in silicon-based photonic crystal slab waveguides, formed by selective micropipette fluid infiltration. An examination of the induced cavities, performed by evanescent coupling, is presented.
We demonstrate reconfigurable microfluidic photonic crystal components in silicon-based membranes by select hole infiltration. We employ a diverse range of fluids and show the capability of filling a single hole. Systematic characterisations of the induced defects are presented.
Summary form only given. In the contribution, we show clear evidence that photonic crystals (PC) can be used in ultrasmall integrated optics to cascade two elements, in this case a cavity and a waveguide. We use as a basis PC a triangular array of holes of period a=220-260 nm etched through an AlGaAs planar waveguide, in which we define a hexagonal cavity of side h=7a (H7 cavity), and a guide with...
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