title: [Low temperature properties of T shape photoacoustic cell and applications].
abstract: A homemade low-temperature T shape photoacoustic system (PAS) in the range from 0 to - 100 degrees C is well established. The mode distribution, the temperature dependence of the resonant frequency, Q-factor and the sensitivity of the PAS were investigated. The measurement of the carbon dioxide in the range from 0 to -100 degrees C showed that the system can be used in trace gas detection under low-temperature. The results show that the PAS can be used to study the atmospheric molecules continuous absorption at low-temperature.
authors.affiliation: Laboratory of Atmospheric Physico-Chemistry, Anhui Institute of Optics & Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China. nmsheng@163.com
authors.forename: Ming-Sheng
authors.initials: MS
authors.lastname: Niu
authors.forename: Qiang
authors.initials: Q
authors.lastname: Liu
authors.forename: Gui-Shi
authors.initials: GS
authors.lastname: Wang
authors.forename: Yi-Qian
authors.initials: YQ
authors.lastname: Yuan
authors.forename: Wei
authors.initials: W
authors.lastname: Huang
authors.forename: Wei-Jun
authors.initials: WJ
authors.lastname: Zhang
authors.forename: Xiao-Ming
authors.initials: XM
authors.lastname: Gao