Temperature-dependent terahertz spectroscopy and refractive index measurements of aqua-soluble and plastic explosives

doi:10.1364/ao.57.008743

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	Temperature-dependent terahertz spectroscopy and refractive index measurements of aqua-soluble and plastic explosives
	Damarla, G.; Venkatesh, M.; Chaudhary, A. K.
	2018
发表期刊	Applied Optics
ISSN	1559-128X
卷号	57 期号:29 页码:8743-8750
摘要	The paper reports the temperature-dependent time domain terahertz spectroscopy of premium aqua-soluble and plastic explosives such as NH4NO3, TNT, and RDX between 0.1 and 2.2 THz. Tunable terahertz radiation was generated using ZnTe crystal as a source, and a photoconductive antenna was used as a detector. The temperature-dependent study was carried out between 30 degrees C and 200 degrees C in a specially designed oven. The signature peaks of RDX and TNT present at 0.82 and 1.60 THz, respectively, show a strong redshift, whereas the NH4NO3 molecule shows a comparatively small shift. The high-temperature-based redshift phenomenon is just the opposite of the blueshift recorded at low temperatures. In addition, the temperature-dependent absorption coefficient data of these molecules support the change in the concentration of the NO2 molecule. We have also ascertained the temperature-dependent refractive indices of these molecules between 0.1 and 2.0 THz, which confirms the effect of temperature on the refractive indices. Finally, the signature peak of RDX with respect to the reduction in the weight concentration of RDX in the Teflon matrix was studied at 0.82 THz. (C) 2018 Optical Society of America
关键词	thermal-decomposition mechanisms security applications vibrational-spectra transmission generation range gas Optics
DOI	10.1364/ao.57.008743
收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/61177
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Damarla, G.,Venkatesh, M.,Chaudhary, A. K.. Temperature-dependent terahertz spectroscopy and refractive index measurements of aqua-soluble and plastic explosives[J]. Applied Optics,2018,57(29):8743-8750.
APA	Damarla, G.,Venkatesh, M.,&Chaudhary, A. K..(2018).Temperature-dependent terahertz spectroscopy and refractive index measurements of aqua-soluble and plastic explosives.Applied Optics,57(29),8743-8750.
MLA	Damarla, G.,et al."Temperature-dependent terahertz spectroscopy and refractive index measurements of aqua-soluble and plastic explosives".Applied Optics 57.29(2018):8743-8750.

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