Visible-light spectroscopy by photothermal radiometry using an incoherent source

DOI PDF 被引用文献2件
  • Per-Erik Nordal
    Laser and Applied Optics Laboratory, P. O. Box No. 303 Blindern Oslo 3, Norway
  • Svein Otto Kanstad
    Laser and Applied Optics Laboratory, P. O. Box No. 303 Blindern Oslo 3, Norway

書誌事項

公開日
1981-04-01
DOI
  • 10.1063/1.92427
公開者
AIP Publishing

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説明

<jats:p>Photothermal radiometry (PTR) is shown to yield optical absorption spectra in the visible region of untreated and strongly scattering material, using Nd2O3 powder, blood, and a green leaf as test samples. A conventional high pressure Xe lamp/monochromator combination was employed for illumination at power levels below 1 mW, with a PbSnTe infrared detector for recording the thermal reradiation. Calculated PTR signals and signal-to-noise ratios are found to compare well with those observed.</jats:p>

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