2つのフーリエ変換赤外分光器を用いた赤外線検出器の分光応答度測定

DOI Web Site

書誌事項

タイトル別名
  • Measurement of the Spectral Responsivity of an Infrared Detector with a Dual Fourier-Transform Infrared Spectrometer
  • 提案方法の基本的考察
  • Basic Considerations on the Proposed Method

抄録

This paper describes a method to measure the spectral responsivity of an infrared detector by using two Fourier-transform infrared (FT-IR) spectrometers. The principal part of the measuring system consists of the two FT IR spectrometers, a silicon-carbide infrared cavity radiator, and an optical arrangement to measure the spectral radiance with the FT-IR spectrometers. The measurement of an spectral responsivity of an infrared detector by this method consists of two steps. The first is measurement of the spectral radiance of interferogram at an optical path difference of zero on an FT-IR spectrometer, and the second step is determination of the spectral responsivity by combining the FT-IR spectrometer measurements with the known spectral radiance at an optical path difference of zero. In the experiment, the infrared detector used was a liquid-nitrogen-cooled HgCdTe photoconductive detector, and the spectral radiance of the interferogram at the optical path difference of zero on an FT-IR spectrometer [1] was determined by a comparison with that of the silicon-carbide infrared cavity radiator using an FT-IR spectrometer [2]. The spectral responsivity of the HgCdTe detector was measured by combining the above FT-IR spectrometer [1] results with the known spectral radiance at an optical path difference of zero. The results of these experiments suggested that our proposed methods are effective for measuring the spectral responsivity of an infrared detector.

収録刊行物

  • 照明学会誌

    照明学会誌 80 (2), 97-103, 1996

    一般社団法人 照明学会

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ