Plasmon‐based sensing relies on the interaction of photons with nanostructured materials. Surface plasmon resonance (SPR) biological and chemical sensors offer unique advantages of real‐time and label‐free detection techniques and therefore, the...
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https://www.riss.kr/link?id=O117976922
2021년
-
1862-6300
1862-6319
SCI;SCIE;SCOPUS
학술저널
n/a-n/a [※수록면이 p5 이하이면, Review, Columns, Editor's Note, Abstract 등일 경우가 있습니다.]
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
Plasmon‐based sensing relies on the interaction of photons with nanostructured materials. Surface plasmon resonance (SPR) biological and chemical sensors offer unique advantages of real‐time and label‐free detection techniques and therefore, the...
Plasmon‐based sensing relies on the interaction of photons with nanostructured materials. Surface plasmon resonance (SPR) biological and chemical sensors offer unique advantages of real‐time and label‐free detection techniques and therefore, they have been around in the commercial market for many decades. The principle of the Goos–Hanchen (GH) shift, whereby linearly polarized light undergoes a small lateral shift upon total internal reflection at a dielectric surface, is highly sensitive to refractive index (RI) changes in the sensing medium and can thus be utilized for plasmonic sensing. 2D materials such as graphene can boost the plasmonic efficiency of these sensors because of their excellent optical properties. Herein, a customized GH shift–based SPR sensor is devised using graphene‐coated Au chips. With the help of experimental results, it is shown that graphene can enhance the sensitivity of the conventional Au‐only configuration 2.35 times.
The Goos–Hanchen (GH) shift is a physical phenomenon whereby total internally reflected light undergoes a small lateral displacement as compared to the incident point. In this work, a customized GH shift plasmonic sensing setup is formed and it is shown that graphene can give a significant boost to the sensitivity compared to the conventional Au‐only configuration.
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