Silicon nitride photonics is on the rise owing to the broadband nature of the material, allowing applications of biophotonics, tele/datacom, optical signal processing and sensing, from visible, through near to mid-infrared wavelengths. In this paper, a review of the state of the art of silicon nitride strip waveguide platforms is provided, alongside the experimental results on the development of a versatile 300 nm guiding film height silicon nitride platform.
Microband electrode arrays are useful tools for the electrochemist, offering the enhanced sensitivity associated
with microelectrodes but with a higher total current output. For optimum performance, the array may be
designed such that space is used efficiently but the individual microbands behave as isolated electrodes on
the time scale of the experiment. For a linear sweep experiment, the optimum specifications of a microband
array depend on the scan rate used and the diffusion coefficient of the electroactive species. A two-dimensional
simulation method is used to examine the nature of the diffusion to a regular array of microbands. Cyclic
voltammetry of hexaammineruthenium(III)chloride is performed at a regularly spaced microband array to
test the theory.
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