Work

Polariton Electric-Field Sensor

Year: 2020

Type: article

Abstract: We experimentally demonstrate a dipolar polariton based electric-field sensor. We tune and optimize the sensitivity of the sensor by varying the dipole moment of polaritons. We show polariton interactions play an important role in determining the conditions for optimal electric-field sensing, and achieve a sensitivity of 0.12 V m^{-1} Hz^{-0.5}. Finally, we apply the sensor to illustrate that excitation of polaritons modifies the electric field in a spatial region much larger than the optical excitation spot.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.125.067402

Authors: Emre Togan, Yufan Li, Stefan Faelt, Werner Wegscheider, Atac Imamoglu

Institutions: ETH Zurich, Institute for Quantum Electronics, Laboratory for Solid State Physics

Language: English

Topic: Strong Light-Matter Interactions

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funders: National Center of Competence in Research Quantum Science and Technology, H2020 European Research Council

Award: Interacting polaritons in two-dimensional electron systems