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Title: Coherent perfect absorption in deeply subwavelength films in the single-photon regime
Authors: Roger, Thomas
Vezzoli, Stefano
Bolduc, Eliot
Valente, Joao
Heitz, Julius J. F.
Jeffers, John
Soci, Cesare
Leach, Jonathan
Couteau, Christophe
Zheludev, Nikolay I.
Faccio, Daniele
Keywords: Single Photons and Quantum Effects
DRNTU::Science::Physics::Optics and light
Issue Date: 2015
Source: Roger, T., Vezzoli, S., Bolduc, E., Valente, J., Heitz, J. J. F., Jeffers, J., . . . Faccio, D. (2015). Coherent perfect absorption in deeply subwavelength films in the single-photon regime. Nature Communications, 6, 7031-. doi:10.1038/ncomms8031
Series/Report no.: Nature Communications
Abstract: The technologies of heating, photovoltaics, water photocatalysis and artificial photosynthesis depend on the absorption of light and novel approaches such as coherent absorption from a standing wave promise total dissipation of energy. Extending the control of absorption down to very low light levels and eventually to the single-photon regime is of great interest and yet remains largely unexplored. Here we demonstrate the coherent absorption of single photons in a deeply subwavelength 50% absorber. We show that while the absorption of photons from a travelling wave is probabilistic, standing wave absorption can be observed deterministically, with nearly unitary probability of coupling a photon into a mode of the material, for example, a localized plasmon when this is a metamaterial excited at the plasmon resonance. These results bring a better understanding of the coherent absorption process, which is of central importance for light harvesting, detection, sensing and photonic data processing applications.
DOI: 10.1038/ncomms8031
Schools: School of Physical and Mathematical Sciences 
Research Centres: Centre for Disruptive Photonic Technologies (CDPT) 
CNRS International NTU THALES Research Alliances 
Rights: © 2015 Macmillan Publishers Limited. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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