Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 6984-6986 |
| Number of pages | 3 |
| Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
| Volume | 45 |
| Issue number | 9 A |
| DOIs | |
| Publication status | Published - 2006 Sep 7 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
- Physics and Astronomy(all)
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Characterizing optical properties of self-assembled gold nanoparticles for surface plasmon resonance device applications. / Chen, Hsuen Li; Cheng, Hsu Chun; Ko, Tsung Shine; Chuang, Shang Yu; Chu, Tien Chi.
In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 45, No. 9 A, 07.09.2006, p. 6984-6986.Research output: Contribution to journal › Article
TY - JOUR
T1 - Characterizing optical properties of self-assembled gold nanoparticles for surface plasmon resonance device applications
AU - Chen, Hsuen Li
AU - Cheng, Hsu Chun
AU - Ko, Tsung Shine
AU - Chuang, Shang Yu
AU - Chu, Tien Chi
PY - 2006/9/7
Y1 - 2006/9/7
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=33749028690&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33749028690&partnerID=8YFLogxK
U2 - 10.1143/JJAP.45.6984
DO - 10.1143/JJAP.45.6984
M3 - Article
AN - SCOPUS:33749028690
VL - 45
SP - 6984
EP - 6986
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 9 A
ER -