期刊
NANO LETTERS
卷 13, 期 7, 页码 3053-3058出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl400849f
关键词
Perfect absorption; localized surface plasmon; metamaterials; optical heating; optical near fields; optical absorption
类别
资金
- Swedish Foundation for Strategic Research
- Swedish Research Council
- Vinnova
We experimentally demonstrate that an incident light beam can be completely annihilated in a single layer of randomly distributed, widely spaced gold nanoparticle antennas. Under certain conditions, each antenna dissipates more than 10 times the number of photons that enter its geometric cross-sectional area. The underlying physics can be understood in terms of a critical coupling to localized plasmons in the nanoparticles or, equivalently, in terms of destructive optical Fano interference and so-called coherent absorption.
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