摘要
The IR spectra of a single, isolated polystyrene sphere with diameter of 4.46 μm under different aperture sizes have been measured by Micro-FTIR spectrometer and the scattering signal can be seen obviously. Based on Mie scattering theory, a feasible method has been proposed to estimate the extinction efficiency (Qext) of microsphere. Qext from Mid-IR spectroscopy is consistent well with that derived from MiePlot software. It shows that the extinction efficiency of microsphere with the size of the Mid-IR range (2.5 μm–25 μm), which exhibits weak IR absorption, can be obtained by using the present method based on recorded Micro-FTIR spectra.
| 源语言 | 英语 |
|---|---|
| 页(从-至) | 249-253 |
| 页数 | 5 |
| 期刊 | Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy |
| 卷 | 181 |
| DOI | |
| 出版状态 | 已出版 - 15 6月 2017 |
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