期刊
PHYSICAL REVIEW LETTERS
卷 117, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.117.023601
关键词
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资金
- European Research Council under the European union's Seventh Framework Programme /ERC [GA 306559, GA 340507, FP/2014-2019]
- EPSRC (UK) [EP/J00443X/1]
- EPSRC [EP/M009122/1, EP/J00443X/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [1405670, EP/M009122/1, EP/J00443X/1] Funding Source: researchfish
Recent results in deeply subwavelength thickness films demonstrate coherent control and logical gate operations with both classical and single-photon light sources. However, quantum processing and devices typically involve more than one photon and nontrivial input quantum states. Here we experimentally investigate two-photon N00N state coherent absorption in a multilayer graphene film. Depending on the N00N state input phase, it is possible to selectively choose between single- or two-photon absorption of the input state in the graphene film. These results demonstrate that coherent absorption in the quantum regime exhibits unique features, opening up applications in multiphoton spectroscopy and imaging.
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