dc.contributor.author | Luxmoore, IJ | |
dc.contributor.author | Liu, PQ | |
dc.contributor.author | Li, P | |
dc.contributor.author | Faist, J | |
dc.contributor.author | Nash, GR | |
dc.date.accessioned | 2016-06-29T18:48:28Z | |
dc.date.issued | 2016-06-06 | |
dc.description.abstract | 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. | en_GB |
dc.description.sponsorship | The authors thank Johanna Wolf for providing the QCL used for the detector characterization. This research was supported by the European Union under the FET-open grant GOSFEL and the Swiss National Science Foundation through NCCR QSIT. G.R.N. also gratefully acknowledges the support of the UK Engineering and Physical Sciences Research Council through a fellowship in Frontier Manufacturing (Grant No. EP/J018651/1). | en_GB |
dc.identifier.citation | Vol. 3, Iss. 6, pp 936–941 | en_GB |
dc.identifier.doi | 10.1021/acsphotonics.6b00226 | |
dc.identifier.uri | http://hdl.handle.net/10871/22314 | |
dc.language.iso | en | en_GB |
dc.publisher | American Chemical Society | en_GB |
dc.relation.url | http://pubs.acs.org/doi/abs/10.1021/acsphotonics.6b00226 | en_GB |
dc.rights.embargoreason | Publisher's policy. | en_GB |
dc.rights | This is the author accepted manuscript. The final version is available from American Chemical Society via the DOI in this record. | en_GB |
dc.subject | terahertz | en_GB |
dc.subject | SEIRA spectroscopy | en_GB |
dc.subject | photothermoelectric effect | en_GB |
dc.subject | biosensing | en_GB |
dc.subject | graphene plasmonics | en_GB |
dc.subject | infrared | en_GB |
dc.subject | metamaterial | en_GB |
dc.title | Graphene–Metamaterial Photodetectors for Integrated Infrared Sensing | en_GB |
dc.type | Article | en_GB |
dc.description | Published | en_GB |
dc.identifier.eissn | 2330-4022 | |
dc.identifier.journal | ACS Photonics | en_GB |