期刊
JOURNAL OF RAMAN SPECTROSCOPY
卷 44, 期 7, 页码 949-956出版社
WILEY
DOI: 10.1002/jrs.4313
关键词
deep Raman spectroscopy; time-resolved Raman spectroscopy; Spatially Offset Raman spectroscopy; time-resolved spatially offset Raman spectroscopy
类别
资金
- (Department of the Prime Minister and Cabinet, Australian Government)
- Queensland Government
- Australian Future Forensics Innovation Network
- Queensland Health Forensic Scientific Services
- Australian Federal Police
- Health Sciences Authority Singapore
Time-resolved Raman spectroscopy, spatially offset Raman spectroscopy and time-resolved spatially offset Raman spectroscopy (TR-SORS) have proven their capability for the non-invasive profiling of deep layers of a sample. Recent studies have indicated that TR-SORS exhibits an enhanced selectivity toward the deep layers of a sample. However, the enhanced depth profiling efficiency of TR-SORS, in comparison with time-resolved Raman spectroscopy and spatially offset Raman spectroscopy, is yet to be assessed and explained in accordance to the synergistic effects of spatial and temporal resolutions. This study provides a critical investigation of the depth profiling efficiency of the three deep Raman techniques. The study compares the efficiency of the various deep Raman spectroscopy techniques for the stand-off detection of explosive precursors hidden in highly fluorescing packaging. The study explains for the first time the synergistic effects of spatial and temporal resolutions in the deep Raman techniques and their impact on the acquired spectral data. Copyright (c) 2013 John Wiley & Sons, Ltd.
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