Broadband static Fourier transform mid-infrared spectrometer

Kohler Michael H.; Nassl Stefan S.; Kienle Patrick; Dong Xingchen; Koch Alexander W.

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Broadband static Fourier transform mid-infrared spectrometer

机译：宽带静态傅里叶变换中红外光谱仪

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For applications where only moderate spectral resolution is required, static Fourier transform infrared spectrometers (sFTS) offer a comparatively cost-effective alternative to classical scanning instruments. In this paper, we present an sFTS based on a single-mirror interferometer using only standard optical components and an uncooled microbolometer array. Because the instrument features concave mirrors rather than lenses, dispersion effects can be minimized. This enables broadband operation in the mid-infrared range from 2800 cm(-1) to 600 cm(-1) at a spectral resolution of 12 cm(-1). In addition, the design guarantees comparatively high light throughput and can potentially be designed for increased temperature stability. Alongside a simulation of the temperature- and wavenumber-dependent behavior of the system, we provide a proof of principle of the proposed design by means of experimental results. (C) 2019 Optical Society of America

机译：对于仅需要中等光谱分辨率的应用，静态傅里叶变换红外光谱仪（SFT）提供了古典扫描仪器的相对经济效益的替代方案。在本文中，我们仅使用标准光学元件和未冷却微致多压计阵列基于单镜干涉仪的SFT。因为仪器具有凹形镜而不是镜头，所以可以最小化色散效果。这使得中红外线范围的宽带操作能够以12cm（-1）的光谱分辨率为2800cm（-1）至600cm（-1）。此外，设计保证了相对较高的光通量，并且可以设计用于提高温度稳定性。除了系统的温度和波数依赖行为的仿真外，我们通过实验结果提供所提出的设计原理的证据。（c）2019年光学学会

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来源
《Applied optics》 |2019年第13期|共8页
作者
Kohler Michael H.; Nassl Stefan S.; Kienle Patrick; Dong Xingchen; Koch Alexander W.;
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Tech Univ Munich Inst Measurement Syst &

Sensor Technol Theresienstr 90-N5 D-80333 Munich Germany;

Tech Univ Munich Inst Measurement Syst &

Sensor Technol Theresienstr 90-N5 D-80333 Munich Germany;

Tech Univ Munich Inst Measurement Syst &

Sensor Technol Theresienstr 90-N5 D-80333 Munich Germany;

Tech Univ Munich Inst Measurement Syst &

Sensor Technol Theresienstr 90-N5 D-80333 Munich Germany;

Tech Univ Munich Inst Measurement Syst &

Sensor Technol Theresienstr 90-N5 D-80333 Munich Germany;

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Broadband static Fourier transform mid-infrared spectrometer

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