Journal ArticleDOI
High-resolution surface plasmon resonance sensor based on linewidth-optimized nanohole array transmittance.
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TLDR
A high spectral resolution, 2D nanohole-array-based surface plasmon resonance sensor that operates at normal or near normal incidence--facilitating high spatial resolution imaging--is presented and the potential of this system of O(10(-6)) RIU under optimal conditions is estimated.Abstract:
A high spectral resolution, 2D nanohole-array-based surface plasmon resonance sensor that operates at normal or near normal incidence--facilitating high spatial resolution imaging--is presented. The angular and spectral transmittance of the structure is modified from a Fano type to a pure Lorentzian line shape with a parallel and orthogonal polarizer-analyzer pair. This change leads to a linewidth narrowing that maximizes the sensor resolution, which we show to be of O(10−5) refractive index units (RIU). We estimate the potential of this system of O(10−6) RIU under optimal conditions.read more
Citations
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Journal ArticleDOI
Nanostructured plasmonic sensors.
Matthew E. Stewart,Christopher R. Anderton,Lucas B. Thompson,Joana Maria,Stephen K. Gray,John A. Rogers,Ralph G. Nuzzo +6 more
TL;DR: This work has shown that coherent oscillations of conduction electrons on a metal surface excited by electromagnetic radiation at a metal -dielectric interface can be associated with surface plasmons, which have potential applications in miniaturized optical devices, sensors, and photonic circuits.
Journal ArticleDOI
Light passing through subwavelength apertures
TL;DR: In this paper, the authors provide a perspective on the recent developments in the transmission of light through subwavelength apertures in metal films, and the physical mechanisms operating in the different structures considered are analyzed within a common theoretical framework.
Journal ArticleDOI
Plasmonic gold mushroom arrays with refractive index sensing figures of merit approaching the theoretical limit
Yang Shen,Jianhua Zhou,Tianran Liu,Yuting Tao,Ruibin Jiang,Mingxuan Liu,Guohui Xiao,Jinhao Zhu,Zhang-Kai Zhou,Xue-Hua Wang,Chongjun Jin,Jianfang Wang +11 more
TL;DR: This work describes an array of submicrometer gold mushrooms with a FOM reaching ~108, which is comparable to the theoretically predicted upper limit for standard PSPR sensors, and demonstrates the array as a biosensor for detecting cytochrome c and alpha-fetoprotein, suggesting that the array is a promising candidate for label-free biomedical sensing.
Journal ArticleDOI
Plasmon-controlled fluorescence: a new paradigm in fluorescence spectroscopy
Joseph R. Lakowicz,Krishanu Ray,Mustafa H. Chowdhury,Henryk Szmacinski,Yi Fu,Jian Zhang,Kazimierz Nowaczyk +6 more
TL;DR: An intuitive description of the complex physics of plasmons and near-field interactions is provided and how these effects will result in new classes of experimental procedures, novel probes, bioassays and devices are suggested.
Journal ArticleDOI
A new generation of sensors based on extraordinary optical transmission.
TL;DR: Recent advances in the optical and spectroscopic properties of nanohole arrays in thin gold films and their applications for chemical sensing and enhanced spectroscopy are described.
References
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Journal ArticleDOI
Extraordinary optical transmission through sub-wavelength hole arrays
Thomas W. Ebbesen,Thomas W. Ebbesen,Henri J. Lezec,H. F. Ghaemi,Tineke Thio,Peter A. Wolff,Peter A. Wolff +6 more
TL;DR: In this article, the optical properties of submicrometre cylindrical cavities in metallic films were explored and it was shown that arrays of such holes display highly unusual zero-order transmission spectra at wavelengths larger than the array period, beyond which no diffraction occurs.
Journal ArticleDOI
Surface plasmon resonance sensors: review
TL;DR: Main application areas are outlined and examples of applications of SPR sensor technology are presented and future prospects of SPR technology are discussed.
Journal ArticleDOI
Surface plasmon sensor based on the enhanced light transmission through arrays of nanoholes in gold films
TL;DR: Arrays of nanoholes in a gold film were used to monitor the binding of organic and biological molecules to the metallic surface, which found the sensitivity was found to be 400 nm per refractive index unit, which is comparable to other grating-based surface plasmon resonance (SPR) devices.
Journal ArticleDOI
Surface Plasmon Polaritons and Their Role in the Enhanced Transmission of Light through Periodic Arrays of Subwavelength Holes in a Metal Film
TL;DR: Results of the transmitted, reflected, and absorbed power associated with the enhanced transmittance of light through a silver film pierced by a periodic array of subwavelength holes shows that the transmission features of the array are consistent with p-polarized resonant modes of the structure.
Journal ArticleDOI
Surface plasmon resonance sensors based on diffraction gratings and prism couplers: sensitivity comparison
TL;DR: Theoretical analysis and comparison of the sensitivity of surface plasmon resonance (SPR) sensors using diffraction at gratings and attenuated total reflection (ATR) in prism couplers for two detection methods-resonant angle interrogation and resonant wavelength interrogation is presented in this article.