Graphene–Metamaterial Photodetectors for Integrated Infrared Sensing
Source abstract
Abstract
High Resolution Image Download MS PowerPoint Slide In this work we study metamaterial-enhanced graphene photodetectors operating in the mid-IR to THz. The detector element consists of a graphene ribbon embedded within a dual-metal split ring resonator, which acts like a cavity to enhance the absorption of electromagnetic radiation by the graphene ribbon, while the asymmetric metal contacts enable photothermoelectric detection. Detectors designed for the mid-IR demonstrate peak responsivity (referenced to total power) of ∼120 mV/W at 1500 cm –1 and are employed in the spectroscopic evaluation of vibrational resonances, thus demonstrating a key step toward a platform for integrated surface-enhanced sensing.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Plasmonic and Surface Plasmon Research · Metamaterials and Metasurfaces Applications · Photonic and Optical Devices
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Affiliations
College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, EX4 4QF, United Kingdom
Institute for Quantum Electronics, ETH Zurich, Auguste-Piccard-Hof 1, CH-8093 Zurich, Switzerland
Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
Funding
Engineering and Physical Sciences Research Council · Seventh Framework Programme · Swiss National Science Foundation
References (26)
Show source-provided references
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