High surface plasmon resonance sensitivity enabled by optical disks

Dou, Xuan; Phillips, Blayne M.; Chung, Pei-Yu; Jiang, Peng

doi:10.1364/ol.37.003681

Cited by 40 publications

(29 citation statements)

References 17 publications

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“…The value of 1645.6 nm/RIU obtained for the LSP nanocavity containing four nanodisks is greater than the sensitivity of 1569.9 nm/RIU reported for the surfaceplasmon resonance based sensor reported in [16], and the values of 635 nm/RIU and 1600 nm/RIU presented in [36,37], respectively. Moreover, the sensing area of the LSP nanocavity is quite diminute comparatively to the sizes at milimetric and micrometric scales shown in [16,37]. These comparisons evidence that the nanocavity configuration discussed in this paper has the attractive feature of attaining a higher sensitivity nearly constant with a considerable miniaturization of the sensing area.…”

Section: The Lsp Nanocavity -Results and Discussioncontrasting

confidence: 62%

Investigation of the sensing properties of a localized surface plasmon nanocavity

Silva

Cardoso

Giraldi

et al. 2015

JAE

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Surface plasmon-polariton excitations are electromagnetic modes responsible for a huge field confinement at the interface between a conductor and a dielectric. These modes mitigate light scattering even below the diffraction limit, which allows the reduction in size of several kinds of electromagnetic devices such as waveguides, resonators and sensors. Within this framework, we apply the FEM-RBCI formulation to investigate the response at the optical spectrum of a nanocavity filled with silver nanodisks. Computational simulations show that the coupling between localized surface plasmon modes excited at the periphery of the nanodisks yields a high sensitivity degree in an ultra-compact area. Such sensitivity is nearly constant and covers a wide range of refraction indexes of the surrounding medium. Furthermore, it is not required any external phase matching technique to achieve surface plasmon resonance. These characteristics demonstrates the great potential of the structure to improve optical sensing applications.

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Section: The Lsp Nanocavity -Results and Discussioncontrasting

confidence: 62%

Investigation of the sensing properties of a localized surface plasmon nanocavity

Silva

Cardoso

Giraldi

et al. 2015

JAE

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“…The intensity of the SPR band also increased. The baseline corrected absorption intensity of the SPR spectrum from 0.80 dB to 4.34 dB increased with the increase of the refractive index due to the difference in diffraction orders [62,78]. The full width at half maximum (FWHM) of the SPR band was broadened from 49.06 nm to 71.29 nm with the increase of the refractive index due to the spatial spreading and scattering of the conduction electrons [25,52,62,79].…”

Section: Resultsmentioning

confidence: 99%

Effect of Gamma-Ray Irradiation on the Growth of Au Nano-Particles Embedded in the Germano-Silicate Glass Cladding of the Silica Glass Fiber and its Surface Plasmon Resonance Response

Han

2019

Sensors

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The effect of γ-ray irradiation on the surface plasmon resonance (SPR) sensing capability of refractive index (n = 1.418–1.448) of the silica glass optical fiber comprised of germano-silicate glass cladding embedded with Au nano-particles (NPs) was investigated. As the γ-ray irradiation increased from 1 h to 3 h with the dose rate of 1190 Gy/h, the morphology of the Au NPs and the SPR spectrum were found to change. The average diameter of Au NPs increased with the aspect ratio from 1 to 2, and the nano-particles became grown to the clusters. The SPR band wavelength shifted towards a longer wavelength with the increase of total dose of γ-ray irradiation regardless of the corresponding refractive indices. The SPR sensitivities (wavelength/refractive index unit, nm/RIU) also increased from 407 nm/RIU to 3553 nm/RIU, 1483 nm/RIU, and 2335 nm/RIU after the γ-ray irradiation at a total dose of 1190 Gy, 2380 Gy, and 3570 Gy, respectively.

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“…It is well known that the SPR peak wavelength increase with the increase of refractive index is related to the resonance wavelength of the incident light due to the increase of the wave vector of the surface plasmon mode [42,[50][51][52]54,57]. The baseline corrected absorption intensity of the SPR spectrum from 0.80 dB to 4.34 dB increased with the increase of refractive index due to the difference in diffraction orders [52,71]. The full width at half maximum (FWHM) of the SPR band was broadened from 49.06 nm to 71.29 nm with the increase of refractive index due to the spatial spreading and scattering of the conduction electrons [20,42,52,72].…”

Section: Preprintsmentioning

confidence: 99%

Effect of Gamma-Ray Irradiation on the Growth of Au Nano-Particles Embedded in the Germano-Silicate Glass Cladding of the Silica Glass Fiber and its Surface Plasmon Resonance Response

Ju¹,

Han²

2019

Preprint

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The effect of γ-ray irradiation on surface plasmon resonance (SPR) sensing capability of refractive index (n = 1.418–1.448) of the silica glass optical fiber comprised of germano-silicate glass cladding embedded with Au nano-particles (NPs) was investigated. As the γ-ray irradiation increased from 1 hour to 3 hours with the dose rate of 1,190 Gy/h, the morphology of the Au NPs and the SPR spectrum were found to change. The average diameter of Au NPs increased with the aspect ratio from 1 to 2 and the nano-particles became grown to the clusters. The SPR peak wavelength shifted towards longer wavelength with the increase of total dose of γ-ray irradiation regardless of the corresponding refractive indices. The SPR sensitivities (wavelength/refractive index unit, nm/RIU) also increased from 407 nm/RIU to 3,553 nm/RIU, 1,483 nm/RIU, and 2,335 nm/RIU after the γ-ray irradiation at the total dose of 1,190 Gy, 2,380 Gy, and 3,570 Gy, respectively.

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High surface plasmon resonance sensitivity enabled by optical disks

Cited by 40 publications

References 17 publications

Investigation of the sensing properties of a localized surface plasmon nanocavity

Investigation of the sensing properties of a localized surface plasmon nanocavity

Effect of Gamma-Ray Irradiation on the Growth of Au Nano-Particles Embedded in the Germano-Silicate Glass Cladding of the Silica Glass Fiber and its Surface Plasmon Resonance Response

Effect of Gamma-Ray Irradiation on the Growth of Au Nano-Particles Embedded in the Germano-Silicate Glass Cladding of the Silica Glass Fiber and its Surface Plasmon Resonance Response

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