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arXiv · 1908.04804

Towards infrared toroidal photodevices: A Review

Burak Gerislioglu·Arash Ahmadivand
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Abstract

Plasmon excitations in metallic nanostructures can decay directly into dynamic electron-hole pairs (EHPs), exploitable for photocurrent generation. This approach has extensively been employed to develop nanoplasmonic light-sensing devices with significant responsivity and quantum efficiency. Of particular interest is infrared plasmonic photodetectors with a wide range of technological applications, including spectroscopy, biosensing, and surveillance. This Review discusses fundamentals, recent advances, and trending mechanisms in the understanding and applications of plasmon-enhanced photocurrent generation in nanostructures across the infrared spectrum. By highlighting and comparing the developed techniques, we demonstrate the newly introduced directions toward achieving high-photon yield infrared plasmonic photodetection tools. As a promising concept in modern photonics, we represent the emergence of toroidal meta-atoms as plasmon-induced carrier generators with unconventionally exquisite properties for designing advanced, rapid, and next-generation plasmonic photodetectors with significantly high responsivity and photocurrent.

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Burak Gerislioglu, Arash Ahmadivand. 2019-08-13. Towards infrared toroidal photodevices: A Review. https://arxiv.org/abs/1908.04804

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