English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/226841
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


Plasmonic antenna coupling to hyperbolic phonon-polaritons for sensitive and fast mid-infrared photodetection with graphene

AuthorsCastilla, Sebastián; Vangelidis, Ioannis; Pusapati, Varun-Varma; Goldstein, Jordan; Autore, Marta; Slipchenko, Tetiana; Rajendran, Khannan; Kim, Seyoon; Watanabe, Kenji; Taniguchi, Takashi; Martín-Moreno, Luis CSIC ORCID ; Englund, Dirk; Tielrooij, Klaas-Jan; Hillenbrand, Rainer; Lidorikis, Elefterios; Koppens, Frank H. L.
Issue Date2020
PublisherSpringer Nature
CitationNature Communications 11: 4872 (2020)
AbstractIntegrating and manipulating the nano-optoelectronic properties of Van der Waals heterostructures can enable unprecedented platforms for photodetection and sensing. The main challenge of infrared photodetectors is to funnel the light into a small nanoscale active area and efficiently convert it into an electrical signal. Here, we overcome all of those challenges in one device, by efficient coupling of a plasmonic antenna to hyperbolic phonon-polaritons in hexagonal-BN to highly concentrate mid-infrared light into a graphene pn-junction. We balance the interplay of the absorption, electrical and thermal conductivity of graphene via the device geometry. This approach yields remarkable device performance featuring room temperature high sensitivity (NEP of 82 pW/Hz−−−√) and fast rise time of 17 nanoseconds (setup-limited), among others, hence achieving a combination currently not present in the state-of-the-art graphene and commercial mid-infrared detectors. We also develop a multiphysics model that shows very good quantitative agreement with our experimental results and reveals the different contributions to our photoresponse, thus paving the way for further improvement of these types of photodetectors even beyond mid-infrared range.
Publisher version (URL)https://doi.org/10.1038/s41467-020-18544-z
Appears in Collections:(ICMA) Artículos
(CIN2) Artículos
Files in This Item:
File Description SizeFormat 
plasmographe.pdf2,37 MBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.