We report on the numerical and experimental study of the localized surface plasmon resonance (LSPR) spectroscopy of gold nanoparticles (NPs) structures at the frustrated total internal reflection (LSPR_TIR). The investigated NPs structures were manufactured using two different microfabrication methods: the nano-sphere lithography, and the original one, involving the direct pulse laser writing. The last technology, developed by our research team, provides powerful tools for flexible patterning of the multichannel biochip with array of LSPR probes. The obtained results demonstrate a significant improvement in the LSPR wavelength sensitivity to sample refractive index and, in addition, a relatively efficient conversion of the incident light wave polarization.
In this paper, we report the results of investigations on the drone ballistic carriers being developed by our research team and we address specifically the concept of compact laser altimeter dedicated to the ballistic carriers. One of the main challenges facing the implementation of the mortar launched altimeter is to ensure its reliable operation after extremely high launch shock accelerations. This requirement determines the optical concept and materials selection and optimization. Recent mortar gun tests demonstrated that the optical and electronic sub-systems of the first altimeter prototype can withstand launch accelerations of at least 5000g.
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