Recent development of a new handheld UV Raman sensor for standoff detection

2021 ◽  
Author(s):  
Robert D. Waterbury ◽  
Thuyan Conghuyentonnu ◽  
Hunter Hardy ◽  
Tim Molner ◽  
Ryan Robins ◽  
...  
Keyword(s):  
Standoff Detection ◽  
Uv Raman ◽  
Raman Sensor

Standoff detection of explosive materials using time-gated UV-Raman spectroscopy

2021 ◽  
Author(s):  
Bo Wang ◽  
Pu Zhang ◽  
Shuyao Zhang ◽  
Xiangping Zhu ◽  
Wei Zhao
Keyword(s):  
Raman Spectroscopy ◽  
Standoff Detection ◽  
Explosive Materials ◽  
Uv Raman Spectroscopy ◽  
Uv Raman

Time-resolved stand-off UV-Raman spectroscopy for planetary exploration

2014 ◽  
Vol 92 ◽  
pp. 88-100 ◽  
Author(s):  
M. Skulinova ◽  
C. Lefebvre ◽  
P. Sobron ◽  
E. Eshelman ◽  
M. Daly ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Planetary Exploration ◽  
Time Resolved ◽  
Uv Raman Spectroscopy ◽  
Uv Raman

Short-range biological standoff detection system (SR-BSDS)

2000 ◽  
Author(s):  
V. James Cannaliato ◽  
Bruce W. Jezek ◽  
Larry Hyttinen ◽  
John B. Strawbridge ◽  
William J. Ginley
Keyword(s):  
Short Range ◽  
Detection System ◽  
Standoff Detection

RARE-EARTH DOPED POTASSIUM LEAD BROMIDE MID-IR LASER SOURCES FOR STANDOFF DETECTION

2008 ◽  
Vol 18 (03) ◽  
pp. 735-745 ◽  
Author(s):  
KRISHNA C. MANDAL ◽  
SUNG H. KANG ◽  
MICHAEL CHOI ◽  
R. DAVID RAUH
Keyword(s):  
Rare Earth ◽  
Emission Spectra ◽  
Optical Quality ◽  
Scanning Calorimetry ◽  
Laser Applications ◽  
Excellent Thermal Stability ◽  
Standoff Detection ◽  
Lead Bromide ◽  
Vertical Bridgman ◽  
Laser Crystals

The single crystal growth of KPb 2 Br 5 by vertical Bridgman technique using in-house processed zone refined PbBr 2 and KBr with rare-earth terbium doping has been studied. The grown moisture resistant crystals (1.5 cm diameter and 10 cm length) have shown high promise for low phonon energy room temperature solid-state laser applications in the longer side of mid-IR (4-15 µm) due to their high storage lifetimes, wide tunability, and excellent optical quality. The processed crystals are highly transparent ( T = ≥80%) in the 0.4-25 µm spectral region. Repeated melting-freezing cycles during differential scanning calorimetry (DSC) experiments did not reveal any appreciable variation in the melting point or phase transitions, which is indicative of their excellent thermal stability. The emission spectra pumped with a 2 µm source show broadband emissions with peak wavelength of 3 µ m (7 F 4→ 7 F6), 5µ m (7 F 5→ 7 F 6) and 7.9µ m (7 F 4→ 7 F 5). The KPb 2 Br 5: Tb laser crystals will be highly useful for standoff detection of incoming chemical and biological threats using unique infrared absorption signatures.

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