Photon-assisted shot noise in graphene in the Terahertz range

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.

includes supplemental material

References in corpus (5)

• Micrometer-scale ballistic transport in encapsulated graphene at room temperature
• Hot electron cooling by acoustic phonons in graphene
• Diffusive Charge Transport in Graphene on SiO2
• A system for measuring auto- and cross-correlation of current noise at low temperatures
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Cited by in corpus (10)

• HBN-encapsulated, graphene-based room-temperature terahertz receivers with high speed and low noise
• Partition-free theory of time-dependent current correlations in nanojunctions in response to an arbitrary time-dependent bias
• Ballistic transport through irradiated graphene
• Efficient 3-dimensional photonic-plasmonic photo-conductive switches for picosecond THz pulses
• Photon-assisted transport in bilayer graphene flakes
• Photoassisted shot noise spectroscopy at fractional filling factor
• Build-up of Vibron-Mediated Electron Correlations in Molecular Junctions
• Shot noise in a harmonically driven ballistic graphene transistor
• Strongly correlated charge transport in silicon MOSFET quantum dots
• Colored ${\Delta }_T$ noise probes the topological character of edge modes