Graphene–Metamaterial Photodetectors for Integrated Infrared Sensing [electronic resource].
- Washington, D.C. : United States. National Nuclear Security Administration, 2016. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- 6 pages : digital, PDF file
- Additional Creators:
- Sandia National Laboratories, United States. National Nuclear Security Administration, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- 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. The detectors we designed for the mid-IR demonstrate peak responsivity (referenced to total power) of ~120 mV/W at 1500 cm<sup>-1</sup> and are employed in the spectroscopic evaluation of vibrational resonances, thus demonstrating a key step toward a platform for integrated surface-enhanced sensing.
- Published through SciTech Connect., 06/01/2016., "sand2016-5489j", "641593", ACS Photonics 3 6 ISSN 2330-4022 AM, and Isaac. J. Luxmoore; Peter Q. Liu; Penglei Li; Jérôme Faist; Geoffrey R. Nash.
- Funding Information:
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