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Intensity based surface plasmon resonance sensor using a nanohole rectangular array
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DOI：10.1364/OE.19.015041.png)
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Abstract
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We show high resolution measurements of a surface plasmon resonance (SPR) sensor based on a rectangular nanohole array in a metal film. This SPR setup uses balanced intensity detection between two orthogonal polarizations of a He-Ne laser beam, which allows for sensitivity improvement, noise reduction and rejection of any uncorrelated variation in the intensity signal. A bulk sensitivity resolution of 6.4x10(-6) RIU is demonstrated. The proposed methodology is promising for applications in portable nanoplasmonic multisensing and imaging. (C) 2011 Optical Society of America
Keywords:
SUBWAVELENGTH HOLE ARRAYS
OPTICAL-TRANSMISSION
SENSITIVITY
FILMS
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3.3
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6.1W
Citations:
14.3W
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