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Photonics and spectroscopy in nanojunctions: a theoretical insight

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The progress of experimental techniques at the nanoscale in the last decade made optical measurements in current-carrying nanojunctions a reality, thus indicating the emergence of a new field of research coined optoelectronics. Optical spectroscopy of open nonequilibrium systems is a natural meeting point for (at least) two research areas: nonlinear optical spectroscopy and quantum transport, each with its own theoretical toolbox. We review recent progress in the field comparing theoretical treatments of optical response in nanojunctions as is accepted in nonlinear spectroscopy and quantum transport communities. A unified theoretical description of spectroscopy in nanojunctions is presented. We argue that theoretical approaches of the quantum transport community (and in particular, the Green function based considerations) yield a convenient tool for optoelectronics when the radiation field is treated classically, and that differences between the toolboxes may become critical when studying the quantum radiation field in junctions.

Graphical abstract: Photonics and spectroscopy in nanojunctions: a theoretical insight

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Publication details

The article was received on 27 Jan 2017 and first published on 11 Apr 2017

Article type: Review Article
DOI: 10.1039/C7CS00067G
Citation: Chem. Soc. Rev., 2017, Advance Article
  • Open access: Creative Commons BY-NC license
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    Photonics and spectroscopy in nanojunctions: a theoretical insight

    M. Galperin, Chem. Soc. Rev., 2017, Advance Article , DOI: 10.1039/C7CS00067G

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