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

doi:10.1364/ao.57.008743

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Temperature-dependent terahertz spectroscopy and refractive index measurements of aqua-soluble and plastic explosives
	Damarla, G.; Venkatesh, M.; Chaudhary, A. K.
刊名	Applied Optics
	2018
卷号	57 期号:29 页码:8743-8750
关键词	thermal-decomposition mechanisms security applications vibrational-spectra transmission generation range gas Optics
ISSN号	1559-128X
DOI	10.1364/ao.57.008743
英文摘要	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
内容类型	期刊论文
源URL	[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.