Raman and time-resolved pulsed photoacoustic spectroscopy of solid trinitrotoluene in graphite mixture: For identification of double resonant optical phonon signatures

doi:10.1016/j.optlastec.2018.08.001

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	Raman and time-resolved pulsed photoacoustic spectroscopy of solid trinitrotoluene in graphite mixture: For identification of double resonant optical phonon signatures
	K.S.Rao; A.K.Chaudhary
	2019
发表期刊	Optics and Laser Technology
ISSN	0030-3992
卷号	109 页码:149-156
摘要	The optical phonon waves transfer mechanism between pure graphite (GP) and trinitrotoluene (TNT) using 1064 nm as an excitation wavelength based on the double resonant Raman effect and the pulsed photoacoustic (PA) technique has been investigated. The study was carried out at a different weight percentage of GP within TNT with respect to the two excitation wavelengths of 532 nm and 1064 nm (30 ps, 10 Hz, Q-switched Nd: YAG laser). The equal and double proportional matrix of the GP and TNT (solid samples) generate a strong PA signal with high quality factor (Q-factor) due to the interaction of optical phonons of GP and TNT in the same phase. The Raman spectra, recorded at 785 nm wavelength provides an insight on the pi-electron coupling between the GP and TNT. The obtained experimental results confirm that the pure GP and its derivatives, which have a SP2/SP3 hybridization, can be used to develop a new sensing optode for the detection and identification of explosive molecules in the visible and near-IR wavelengths range.
关键词	Raman spectra,Trinitrotoluene,Graphite,Photoacoustic spectrum,energetic materials,tnt,explosives,laser,disorder,sensor,mode,Optics,Physics
DOI	10.1016/j.optlastec.2018.08.001
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63101
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	K.S.Rao,A.K.Chaudhary. Raman and time-resolved pulsed photoacoustic spectroscopy of solid trinitrotoluene in graphite mixture: For identification of double resonant optical phonon signatures[J]. Optics and Laser Technology,2019,109:149-156.
APA	K.S.Rao,&A.K.Chaudhary.(2019).Raman and time-resolved pulsed photoacoustic spectroscopy of solid trinitrotoluene in graphite mixture: For identification of double resonant optical phonon signatures.Optics and Laser Technology,109,149-156.
MLA	K.S.Rao,et al."Raman and time-resolved pulsed photoacoustic spectroscopy of solid trinitrotoluene in graphite mixture: For identification of double resonant optical phonon signatures".Optics and Laser Technology 109(2019):149-156.

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