论文标题
普朗克光谱法
Planck spectroscopy
论文作者
论文摘要
所有光谱仪都依靠某些机制来达到光谱选择性。常见的例子包括光栅，棱镜和对镜子的干涉仪。我们通过实验证明并验证了一种被称为Planck光谱的光谱技术，该技术仅使用温度控制的阶段和检测器来测量表面的光谱发射率，而没有任何波长选择性的光学选择性成分。 Planck光谱涉及测量温度依赖性热发射功率，其中光谱选择性通过普朗克定律的温度和波长依赖性实现。我们通过实验证明并验证了MID红外的Planck光谱，对于从检测器的带宽限制的3至13 UM波长，分辨率约为1 UM。可以使用红外摄像机实现Planck光谱的简约设置，以实现低成本的红外高光谱成像和成像椭圆法。
All spectrometers rely on some mechanism to achieve spectral selectivity; common examples include gratings, prisms, and interferometers with moving mirrors. We experimentally demonstrated and validated a spectroscopic technique -- here dubbed Planck spectroscopy -- that measures the spectral emissivity of a surface using only a temperature-controlled stage and a detector, without any wavelength-selective optical components. Planck spectroscopy involves the measurement of temperature-dependent thermally emitted power, where the spectral selectivity is realized via the temperature- and wavelength dependence of Planck's law. We experimentally demonstrated and validated Planck spectroscopy in the mid infrared, for wavelengths from 3 to 13 um -- limited primarily by the bandwidth of our detector -- with resolution of approximately 1 um. The minimalistic setup of Planck spectroscopy can be implemented using infrared cameras to achieve low-cost infrared hyperspectral imaging and imaging ellipsometry.
