Radiative spectroscopy characterisation of participating media


Combined theoretical and experimental techniques are developed to study light–matter interactions for participating media encountered in high-temperature solar thermal and thermochemical applications. The scope of research includes design and optimisation of an experimental radiative spectroscopy/radiometry facility and demonstrating its use to determine effective optical and radiative properties of various participating media types such as particle suspensions, packed beds, nano-, micro- and macro-structures, fibrous media, semi-transparent solids and liquids, and molecular gases. Inverse radiative transfer models are developed to infer the radiative and optical properties from measured overall characteristics such as the transmittance, reflectance, and emittance.


  1. K. Ganesan, L.A. Dombrovsky, T.S. Oh, and W. Lipiński. Determination of optical constants of ceria by combined analytical and experimental approaches. JOM, 65:1694–1701, 2013.

    DOI: 10.1007/s11837-013-0708-y

  2. K. Ganesan, J. Randrianalisoa, and W. Lipiński. Effect of morphology on spectral radiative properties of three-dimensionally ordered macroporous ceria packed bed. Journal of Heat Transfer, 135:122701, 2013.

    DOI: 10.1115/1.4024942

  3. W. Lipiński, J.H. Davidson, S. Haussener, J.F. Klausner, A.M. Mehdizadeh, J. Petrasch, A. Steinfeld, and L. Venstrom. Review of heat transfer research for solar thermochemical applications. Journal of Thermal Science and Engineering Applications, 5:021005, 2013.

    DOI: 10.1115/1.4024088

  4. K. Ganesan, L.A. Dombrovsky, and W. Lipiński. Visible and near-infrared optical properties of ceria ceramics. Infrared Physics & Technology, 57:101–109, 2013.

    DOI: 10.1016/j.infrared.2012.12.040

  5. L.A. Dombrovsky, K. Ganesan, and W. Lipiński. Combined two-flux approximation and Monte Carlo model for identification of radiative properties of highly scattering dispersed materials. Computational Thermal Sciences, 4:365–378, 2012.

    DOI: 10.1615/ComputThermalScien.2012005025

  6. K. Ganesan and W. Lipiński. Experimental determination of spectral transmittance of porous cerium dioxide in the range 900–1,700 nm. Journal of Heat Transfer, 133:104501, 2011.

    DOI: 10.1115/1.4003970

  7. P. Coray, W. Lipiński, and A. Steinfeld. Spectroscopic goniometry system for determining thermal radiative properties of participating media. Experimental Heat Transfer, 24:300–312, 2011.

    DOI: 10.1080/08916152.2011.556311

  8. Z. Liang, W.C. Chueh, K. Ganesan, S.M. Haile, and W. Lipiński. Experimental determination of transmittance of porous cerium dioxide media in the spectral range 300–1,100 nm. Experimental Heat Transfer, 24:285–299, 2011.

    DOI: 10.1080/08916152.2010.542876

  9. P. Coray, W. Lipiński, and A. Steinfeld. Experimental and numerical determination of thermal radiative properties of ZnO particulate media. Journal of Heat Transfer, 132:012701, 2010.

    DOI: 10.1115/1.3194763

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