A GRATING-BASED PLASMON BIOSENSOR WITH HIGH RESOLUTION | Zendy

Ziqian Luo | Zendy; Taikei Suyama | Zendy; Xun Xu | Zendy; Yoichi Okuno | Zendy

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A GRATING-BASED PLASMON BIOSENSOR WITH HIGH RESOLUTION

Author(s) -

Ziqian Luo,

Taikei Suyama,

Xun Xu,

Yoichi Okuno

Publication year - 2011

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 89

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier11060103

Subject(s) - biosensor , grating , plasmon , resolution (logic) , materials science , optics , high resolution , surface plasmon resonance , optoelectronics , nanotechnology , computer science , physics , remote sensing , geography , artificial intelligence , nanoparticle

We present an idea of grating-based plasmon biosensor utilizing phase detection to realize high resolution in flnding a refractive index of a material put on the surface of a metal grating. Considering a trade-ofi between high resolution and experimental practicability, we show a table of recommended setup that covers a wide range of the index. Keeping the difiraction e-ciency no less than 10 i3 and assuming the resolution in phase detection to be 2:5 £ 10 i2 degrees, we estimate the resolution of the biosensor as 7:5£10 i7 refractive index units. We also discuss the possible improvement to realize a predicted superior limit of resolution around 10 i8 refractive index units.

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