Quantum well infrared photo-detectors operating in the strong light-matter coupling regime

Year: 2019

Authors: Vigneron PB., Pirotta S., Carusotto I., Tran NL., Biasiol G., Manceau JM., Bousseksou A., Colombelli R.

Autors Affiliation: Univ Paris Saclay, Univ Paris Sud, Ctr Nanosci & Nanotechnol C2N, CNRS,UMR 9001, F-91120 Palaiseau, France; Univ Trento, Bose Einstein Condensat Ctr, Ist Nazl Ott, I-38123 Trento, Italy; CNR, IOM, Lab TASC, Area Sci Pk,SS 14km 163-5, I-34149 Trieste, Italy.

Abstract: We report quantum well mid-infrared photo-detectors operating in the strong light-matter coupling regime. We claim that this is an ideal system to elucidate the elusive problem in intersubband polaritonics of the injection of electrons (single-particle fermionic states) into polaritonic modes (bosonic excitations). By reversing the perspective and focusing on the electron extraction, we have obtained experimental information on the transfer function between a polaritonic system and an electronic reservoir. In addition to its interest for fundamental science, this approach also opens promising avenues in view of adding previously unavailable functionalities to quantum well detectors and improving their performance.

Journal/Review: APPLIED PHYSICS LETTERS

Volume: 114 (13)      Pages from: 131104-1  to: 131104-5

More Information: We thank Simone De Liberato, Alexandre Delga, Jean-Jacques Greffet, and Francois Julien for useful discussions. We acknowledge financial support from the European Union FET-Open Grant MIR-BOSE (737017) and the European Research Council (IDEASERC) (“GEM”) (306661). This work was partly supported by the French RENATECH network and Provincia Autonoma di Trento.
KeyWords: semiconductors; electromagnetism; photodetectors; mid-infrared photo-detectors
DOI: 10.1063/1.5084112

Citations: 27
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