Experimental determination of transmittance of porous cerium dioxide media in the spectral range of 300-1,100 nm

Z. Liang, W. C. Chueh, K. Ganesan, S. M. Haile, W. Lipiński*

*Corresponding author for this work

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

A spectroscopy system is developed to measure radiative characteristics of participating media in the spectral range of 300-1,100 nm. The system incorporates a short-arc radiation source, double monochromator, optical chopper synchronized with a lock-in amplifier, and a silicon detector. Measurements of overall spectral transmittance are performed with two types of cerium dioxide samples with average porosities of 0.08 and 0.72, respectively. For both sample types, the spectral variation of the transmittance indicates mixed contribution by absorption and scattering to the observed attenuation in the considered spectral range. All samples are characterized by high opacity to radiation up to approximately 400 nm.

Original languageEnglish (US)
Pages (from-to)285-299
Number of pages15
JournalExperimental Heat Transfer
Volume24
Issue number4
DOIs
StatePublished - Oct 1 2011

Keywords

  • ceria
  • cerium dioxide
  • radiometry
  • solar energy
  • spectroscopy
  • thermal radiation
  • transmittance

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Instrumentation
  • Electrical and Electronic Engineering

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