Enhancement of pressure-sensitive paint emission using localized surface plasmon resonance for shock tunnel applications

Y. Miura, H. Nagai, K. Asai, K. Nakakita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

To apply Pressure-Sensitive Paint (PSP) to unsteady or short-duration tests like hypersonic shock tunnels, we need to solve the two fundamental problems. First, polymer-based PSP shows slow time response so that the thickness of PSP film must be reduced to a submicron range. However, such a thin paint film displays a very low Signal-to-Noise Ratio (SNR) because the number of photons detected by a camera is reduced with film thickness. To solve these conflicting problems, it is required to develop a new PSP that emits strong luminescence even though its film thickness is thin enough for unsteady measurements. In this study, systematic experiments were conducted to explore the potential of using Localized Surface Plasmon Resonance (LSPR) of silver (Ag) nanoparticles to enhance the luminescent emission of polymer-based PSP. PSP coupons containing Ag nanoparticles of different sizes and concentrations were prepared and their luminescent intensities were compared. It was found that the luminescent intensity of PSP sample was enhanced about 3-fold by the addition of 35-nm Ag nanoparticles. The same principle was applied to a 0.3-μm thick of Poly(TMSP)-based PSP and the advantage of nanoparticle addition was evaluated in a shock tunnel. It was confirmed that the SNR could be enhanced 1.6-fold using LSPR excitation.

Original languageEnglish
Title of host publication46th AIAA Aerospace Sciences Meeting and Exhibit
Publication statusPublished - 2008 Dec 1
Event46th AIAA Aerospace Sciences Meeting and Exhibit - Reno, NV, United States
Duration: 2008 Jan 72008 Jan 10

Publication series

Name46th AIAA Aerospace Sciences Meeting and Exhibit

Other

Other46th AIAA Aerospace Sciences Meeting and Exhibit
Country/TerritoryUnited States
CityReno, NV
Period08/1/708/1/10

ASJC Scopus subject areas

  • Aerospace Engineering

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