Work

Photon-Assisted Shot Noise in Graphene in the Terahertz Range

Year: 2016

Type: article

Abstract: When subjected to electromagnetic radiation, the fluctuation of the electronic current across a quantum conductor increases. This additional noise, called photon-assisted shot noise, arises from the generation and subsequent partition of electron-hole pairs in the conductor. The physics of photon-assisted shot noise has been thoroughly investigated at microwave frequencies up to 20 GHz, and its robustness suggests that it could be extended to the terahertz (THz) range. Here, we present measurements of the quantum shot noise generated in a graphene nanoribbon subjected to a THz radiation. Our results show signatures of photon-assisted shot noise, further demonstrating that hallmark time-dependant quantum transport phenomena can be transposed to the THz range.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.116.227401

Authors: F. D. Parmentier, L. N. Serkovic-Loli, P. Roulleau, D. C. Glattli

Institutions: Centre National de la Recherche Scientifique, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, Université Paris-Saclay, CEA Paris-Saclay - Etablissement de Saclay, CEA Paris-Saclay

Language: English

Topic: Quantum and electron transport phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: Agence Nationale de la Recherche, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, European Research Council

Award: Metrology of the Quantum Hall Effect in Graphene