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Related Experiment Video

Updated: Apr 18, 2026

Use of Sacrificial Nanoparticles to Remove the Effects of Shot-noise in Contact Holes Fabricated by E-beam Lithography

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Detecting noise with shot noise using on-chip photon detector.

Y Jompol¹, P Roulleau¹, T Jullien¹

¹Nanoelectronics Group, Service de Physique de l'Etat Condense, IRAMIS/DSM (CNRS UMR 3680), CEA Saclay, F-91191 Gif-sur-Yvette, France.

Nature Communications

|January 28, 2015

Summary

We propose using photon-assisted shot noise for on-chip detection of high-frequency radiation. This method is independent of the quantum conductor

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Last Updated: Apr 18, 2026

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Area of Science:

Quantum Physics
Condensed Matter Physics
Nanotechnology

Background:

High-frequency radiation detection using microwave circuits is challenging.
Quantum conductors emit high-frequency radiation, attracting significant interest.

Purpose of the Study:

To propose a novel on-chip method for detecting high-frequency radiation.
To utilize photon-assisted shot noise for radiation detection.

Main Methods:

Investigating low-frequency current noise generated by photon-excited electron-hole partitioning in quantum conductors.
Analyzing the photon-assisted shot noise response concerning electromagnetic coupling.

Main Results:

Photon-assisted shot noise provides a detection method independent of quantum conductor nature and geometry.
The Fano factor characterizes the scattering mechanism, influencing the noise response.
Applicable across a wide range of temperatures (mK to K) and frequencies (GHz to THz).

Conclusions:

Photon-assisted shot noise offers a versatile platform for on-chip radiation detection.
This technique is compatible with various quantum conductors, including Quantum Point Contacts, graphene, and carbon nanotubes.
Opens new experimental avenues in quantum physics and condensed matter research.