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Related Concept Videos

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation01:26

Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation

Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy  (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used.

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Related Experiment Video

Updated: May 11, 2026

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
07:39

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

A highly sensitive voltage interrogation method using electro-optically tunable waveguide coupled surface plasmon

Zhiyou Wang1, Rui Hou, Zheng Zheng

  • 1National Center for Nanoscience and Technology, Beijing 100190, China.

Journal of Nanoscience and Nanotechnology
|May 8, 2013
PubMed
Summary
This summary is machine-generated.

This study introduces a highly sensitive electro-optically tunable waveguide coupled surface plasmon resonance (WCSPR) sensor. Theoretical simulations predict a sensitivity of 2.34 x 10^5 V/RIU for detecting analytes based on refractive index changes.

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Evaluating Plasmonic Transport in Current-carrying Silver Nanowires
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Last Updated: May 11, 2026

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
07:39

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires
09:00

Evaluating Plasmonic Transport in Current-carrying Silver Nanowires

Published on: December 11, 2013

Area of Science:

  • Photonics and Sensor Technology
  • Plasmonics
  • Optical Sensing

Background:

  • Surface Plasmon Resonance (SPR) sensors are widely used for detecting analytes.
  • Existing SPR methods can be limited by sensitivity and response time.
  • Electro-optic (EO) tuning offers a potential avenue for enhancing SPR sensor performance.

Purpose of the Study:

  • To theoretically investigate a novel electro-optically tunable waveguide coupled surface plasmon resonance (WCSPR) sensor.
  • To demonstrate a highly sensitive detection method for analytes based on refractive index (RI) changes.
  • To establish the linearity and sensitivity of the proposed WCSPR sensor system.

Main Methods:

  • Theoretical simulation of a WCSPR sensor utilizing a prism coupling setup.
  • Application of a time-varied scanning DC electrical signal to the waveguide layer.
  • Measurement of the photodetector's differential signal to sum signal ratio for analyte detection.
  • Determination of resonant voltages for different analytes and reference analytes.

Main Results:

  • A high linearity was theoretically demonstrated between resonant voltages and the refractive index (RI) of analytes.
  • The proposed method achieved a theoretical sensitivity as high as 2.34 x 10^5 V/RIU.
  • Distinct resonant voltages were identified for different analytes, enabling specific detection.

Conclusions:

  • The EO-tunable WCSPR sensor presents a promising approach for highly sensitive and specific analyte detection.
  • Theoretical simulations validate the potential of this method for various sensing applications.
  • Further experimental validation is warranted to confirm the predicted performance characteristics.