Year: 2024
Type: article
Abstract: One of the most captivating properties of polaritons is their capacity to confine light at the nanoscale. This confinement is even more extreme in two-dimensional (2D) materials. 2D polaritons have been investigated by optical measurements using an external photodetector. However, their effective spectrally resolved electrical detection via far-field excitation remains unexplored. This hinders their exploitation in crucial applications such as sensing, hyperspectral imaging, and optical spectrometry, banking on their potential for integration with silicon technologies. Herein, we present the electrical spectroscopy of polaritonic nanoresonators based on a high-quality 2D-material heterostructure, which serves at the same time as the photodetector and the polaritonic platform. Subsequently, we electrically detect these mid-infrared resonators by near-field coupling to a graphene pn-junction. The nanoresonators simultaneously exhibit extreme lateral confinement and high-quality factors. This work opens a venue for investigating this tunable and complex hybrid system and its use in compact sensing and imaging platforms.
Source: Nature Communications
Authors: Sebastián Castilla, Hitesh Agarwal, Ioannis Vangelidis, Yuliy V. Bludov, David Alcaraz Iranzo, Adrià Grabulosa, Matteo Ceccanti, Mikhail I. Vasilevskiy, Roshan Krishna Kumar, Eli Janzen, James H. Edgar, Kenji Watanabe, Takashi Taniguchi, Nuno M. R. Peres, Elefterios Lidorikis, Frank H. L. Koppens
Institutions: Institute of Photonic Sciences, Barcelona Institute of Science and Technology, University of Ioannina, Centro de Física das Universidades do Minho e do Porto, University of Minho, International Iberian Nanotechnology Laboratory, Kansas State University, National Institute for Materials Science, University of Southern Denmark, Institució Catalana de Recerca i Estudis Avançats
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $6,790
Funders: Centres de Recerca de Catalunya, Graphene Flagship, European Commission, National Research Foundation, Ministry of Education, Culture, Sports, Science and Technology, Danmarks Grundforskningsfond, Generalitat de Catalunya, Ministerio de Economía y Competitividad, Japan Society for the Promotion of Science, Fundação para a Ciência e a Tecnologia, Agència de Gestió d'Ajuts Universitaris i de Recerca, Office of Naval Research, HORIZON EUROPE European Research Council
Awards: G1874999417, G1907999872, G1958285767, Center for Polariton-driven Light-Matter Inter- actions (POLIMA), G2115222242, G21277220, G2442584775, G2842134935, G2852447548, G3288897321, G349581540, G3836347693, G4162329948, G4720003262, G4806815962, Centro de Física das Universidades do Minho e do Porto, Graphene Flagship Core Project 3, Graphene Flagship Core Project 2, G5554424168, G6983877571, G745058283, POLARSENSE: Polaritonic compact gas sensor demonstrator, G887491987, G8876996369, G898758523
OpenAlex ID: W4403116348