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Quantum plasmonic sensing using single photons

Title
Quantum plasmonic sensing using single photons
Author
이광걸
Keywords
RESONANCE SENSORS; SURFACE
Issue Date
2018-10
Publisher
OPTICAL SOC AMER
Citation
OPTICS EXPRESS, v. 26, no. 22, page. 29272-29282
Abstract
Reducing the noise below the shot-noise limit in sensing devices is one of the key promises of quantum technologies. Here, we study quantum plasmonic sensing based on an attenuated total reflection configuration with single photons as input. Our sensor is the Kretschmann configuration with a gold film, and a blood protein in an aqueous solution with different concentrations serves as an analyte. The estimation of the refractive index is performed using heralded single photons. We also determine the estimation error from a statistical analysis over a number of repetitions of identical and independent experiments. We show that the errors of our plasmonic sensor with single photons are below the shot-noise limit even in the presence of various experimental imperfections. Our results demonstrate a practical application of quantum plasmonic sensing is possible given certain improvements are made to the setup investigated, and pave the way for a future generation of quantum plasmonic applications based on similar techniques. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
URI
https://www.osapublishing.org/oe/abstract.cfm?uri=oe-26-22-29272https://repository.hanyang.ac.kr/handle/20.500.11754/120227
ISSN
1094-4087
DOI
10.1364/OE.26.029272
Appears in Collections:
COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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