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Related Experiment Video

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Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
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Published on: July 21, 2018

High surface plasmon resonance sensitivity enabled by optical disks.

Xuan Dou1, Blayne M Phillips, Pei-Yu Chung

  • 1Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611, USA.

Optics Letters
|September 4, 2012
PubMed
Summary
This summary is machine-generated.

Compact Disks (CDs) and Digital Versatile Disks (DVDs) show higher surface plasmon resonance (SPR) sensing sensitivity than Blu-ray Disks (BDs). This sensitivity is influenced by diffraction order, with CDs achieving high performance.

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Area of Science:

  • Optoelectronics
  • Nanophotonics
  • Materials Science

Background:

  • Surface Plasmon Resonance (SPR) is a label-free optical sensing technique.
  • Optical disks like CDs, DVDs, and BDs possess nanoscale structures suitable for SPR applications.
  • Understanding the impact of disk geometry on SPR performance is crucial for sensor development.

Purpose of the Study:

  • To systematically investigate SPR sensing performance across different optical disk formats (CD, DVD, BD).
  • To correlate SPR sensitivity with disk track pitch and diffraction orders.
  • To theoretically and experimentally validate findings using simulations and optical measurements.

Main Methods:

  • Experimental optical reflection measurements were performed on CD, DVD, and BD samples.
  • Finite-difference time-domain (FDTD) simulations were employed to model SPR behavior.
  • Analysis focused on SPR peak positions and their relation to diffraction orders and sensitivity.

Main Results:

  • CDs and DVDs demonstrated significantly higher SPR sensitivity compared to BDs.
  • SPR sensitivity was found to be inversely related to the diffraction order of SPR peaks.
  • Numerical simulations predicted achievable sensitivities of approximately 1600 nm/RIU for CDs.

Conclusions:

  • Optical disk track pitch and associated diffraction orders critically influence SPR sensing sensitivity.
  • CDs offer a promising platform for high-sensitivity SPR sensing applications.
  • The findings provide valuable insights for designing advanced optical disk-based sensors.