Terahertz time-domain spectroscopy of a simulated pore structure to probe particle size and porosity of porous rock

doi:10.1088/1674-1056/23/12/127802

Abstract The particle sizes and porosities of simulated pore structures are probed by terahertz time-domain spectroscopy. A double-peak time-domain spectrum phenomenon is observed when the terahertz (THz) pulses illuminated a pore and a particle. The amplitudes of the two peaks depend strongly and monotonically on the particle size and porosity. A model is used to study the phenomenon, and the computational results agreed with the experimental measurements. These measurements indicate the terahertz spectroscopic behaviors of pores and particles, suggesting that terahertz spectroscopy can be used as a noncontact probe of porosity.

Keywords: reservoir simulation physical optics terahertz spectroscopy polymer

Received: 17 July 2014
Revised: 01 September 2014
Accepted manuscript online:

PACS:	78.20.Ci	(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
	78.30.Jw	(Organic compounds, polymers)
	78.47.jh	(Coherent nonlinear optical spectroscopy)

Fund: Project supported by the National Key Basic Research Program of China (Grant No. 2014CB744302), the Specially Funded Program on National Key Scientific Instruments and Equipment Development, China (Grant No. 2012YQ140005), and the Beijing Natural Science Foundation (Grant No. 4122064).

Corresponding Authors: Zhao Kun
E-mail: zhk@cup.edu.cn

Cite this article:

Dong Chen (董晨), Bao Ri-Ma (宝日玛), Zhao Kun (赵昆), Xu Chang-Hong (许长虹), Jin Wu-Jun (金武军), Zhong Shou-Xian (钟寿仙) Terahertz time-domain spectroscopy of a simulated pore structure to probe particle size and porosity of porous rock 2014 Chin. Phys. B 23 127802


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Terahertz time-domain spectroscopy of a simulated pore structure to probe particle size and porosity of porous rock

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