期刊
NATURE COMMUNICATIONS
卷 6, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms8031
关键词
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资金
- MOE Singapore [MOE2011-T3-1-005]
- Leverhulme Trust
- Royal Society
- UK's Engineering and Physical Sciences Research Council through the Nanostructured Photonic Metamaterials Programme Grant
- NTU-NAP startup grant [M4080511]
- European Research Council under the European Unions Seventh Framework Programme/ERC [GA 306559]
- EPSRC (UK) [EP/J00443X/1]
- French LABEX Action
- Ministry of Defence
- EPSRC [EP/J015040/1, EP/J00443X/1, EP/G060363/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/J015040/1, EP/J00443X/1, EP/G060363/1] Funding Source: researchfish
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.
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