<br/>At the confluence of nanoscience and photonics, there are several areas where both new science and emerging technologies happen to appear in “extreme regimes” and we will examine several examples.  Plasmonic nanostructures can largely be analyzed in the classical electromagnetic regime, however, for systems of just a few atoms that support localized electronic oscillations, interesting phenomena arise due to their quantum mechanical properties.  Polycyclic aromatic hydrocarbons, with the addition or removal of one or more electrons, form open-shell systems that support plasmonic behavior.  We will examine the properties of this quantum plasmonic system.  Metasurfaces can support harmonic generation of light, and can extend coherent sources into the VUV, beyond the range of conventional nonlinear optical crystals.  Infrared spectroscopy, typically requiring spectrometers with large footprints, can be substantially miniaturized into on-chip arrays of mid-infrared, spectrally selective silicon-based photodetectors.  This new approach to infrared photodetection, that combines the effects of hot electrons and free-carrier absorption, is further enabled by the use of compressive sensing techniques to achieve high-resolution spectroscopy with a modest number of spectrally selective photodetectors.

Extreme regimes for nanoscience and photonics

2019 Spring National Meeting

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