Title :
Detection of gas component with femtosecond laser pulse
Author :
Xu, Nan ; Li, Jianwei ; Li, Jian ; Zhang, Zhixin ; Xiong, Limin
Author_Institution :
Nat. Inst. of Metrol., Beijing, China
Abstract :
A technique was provided to nonintrusively detect different gas component by measuring the field-free alignment of molecules caused by 810nm femtosecond laser pulse. The results demonstrated that different gases present different alignment structures at room temperature under one atmosphere pressure. The technique can be employed for rapid detection of gas component.
Keywords :
gas sensors; high-speed optical techniques; femtosecond laser pulse; gas component detection; molecules field-free alignment measurement; wavelength 810 nm; Atmosphere; EMP radiation effects; Gas lasers; Gases; Laser excitation; Optical pulses; Polarization; Probes; Pulse measurements; Temperature;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2010 Conference on
Conference_Location :
Daejeon
Print_ISBN :
978-1-4244-6795-2
DOI :
10.1109/CPEM.2010.5544515
