Characterizing optical properties of self-assembled gold nanoparticles for surface plasmon resonance device applications

Hsuen Li Chen, Hsu Chun Cheng, Tsung Shine Ko, Shang Yu Chuang, Tien Chi Chu

研究成果: Article

9 引文 斯高帕斯(Scopus)

摘要

In this study, the optical constants of gold nanoparticles are evaluated for surface plasmon-based sensor applications. Using an effective medium approximation (EMA) and ellipsometry, approaches to monitor the self-assembly of gold nanoparticles are also demonstrated. Spectroscopic ellipsometric parameters measured (tan Ψ, cos Δ) before and after adding gold nanoparticles to a substrate are used to calculate the optical constants of gold nanoparticles. The film thickness is measured by grazing incidence X-ray reflectivity (XRR). The optical constants (refractive index, extinction coefficient) of gold nanoparticles can be obtained from the measured ellipsometric parameters and thickness. We also show that particles density can be well predicted and detected nondestructively by this method.

原文English
頁(從 - 到)6984-6986
頁數3
期刊Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
45
發行號9 A
DOIs
出版狀態Published - 2006 九月 7

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

指紋 深入研究「Characterizing optical properties of self-assembled gold nanoparticles for surface plasmon resonance device applications」主題。共同形成了獨特的指紋。

  • 引用此