A new method for estimating the extinction efficiency of polystyrene microsphere by micro-FTIR spectroscopy

Shu Feng Pang; Jing Wang; Yun Zhang; Chun Bo Leng; Yun Hong Zhang

doi:10.1016/j.saa.2017.03.063

A new method for estimating the extinction efficiency of polystyrene microsphere by micro-FTIR spectroscopy

Shu Feng Pang^*, Jing Wang, Yun Zhang, Chun Bo Leng, Yun Hong Zhang

^*Corresponding author for this work

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

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 (Q_ext) of microsphere. Q_ext 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.

Original language	English
Pages (from-to)	249-253
Number of pages	5
Journal	Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
Volume	181
DOIs	https://doi.org/10.1016/j.saa.2017.03.063
Publication status	Published - 15 Jun 2017

Keywords

Aperture
Extinction efficiency (Q)
Micro-FTIR
Microsphere
Mie scattering

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10.1016/j.saa.2017.03.063

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Pang, S. F., Wang, J., Zhang, Y., Leng, C. B., & Zhang, Y. H. (2017). A new method for estimating the extinction efficiency of polystyrene microsphere by micro-FTIR spectroscopy. Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 181, 249-253. https://doi.org/10.1016/j.saa.2017.03.063

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title = "A new method for estimating the extinction efficiency of polystyrene microsphere by micro-FTIR spectroscopy",

abstract = "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.",

keywords = "Aperture, Extinction efficiency (Q), Micro-FTIR, Microsphere, Mie scattering",

author = "Pang, {Shu Feng} and Jing Wang and Yun Zhang and Leng, {Chun Bo} and Zhang, {Yun Hong}",

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year = "2017",

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doi = "10.1016/j.saa.2017.03.063",

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T1 - A new method for estimating the extinction efficiency of polystyrene microsphere by micro-FTIR spectroscopy

AU - Pang, Shu Feng

AU - Wang, Jing

AU - Zhang, Yun

AU - Leng, Chun Bo

AU - Zhang, Yun Hong

PY - 2017/6/15

Y1 - 2017/6/15

N2 - 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.

AB - 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.

KW - Aperture

KW - Extinction efficiency (Q)

KW - Micro-FTIR

KW - Microsphere

KW - Mie scattering

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SN - 1386-1425

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JO - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

JF - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy

ER -

A new method for estimating the extinction efficiency of polystyrene microsphere by micro-FTIR spectroscopy

Abstract

Keywords

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