Detection of elemental mercury by multimode diode laser correlation spectroscopy

Lou, XiutaoLund University,Lunds universitet,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH (författare)

QC 20120418
We demonstrate a method for elemental mercury detection based on correlation spectroscopy employing UV laser radiation generated by sum-frequency mixing of two visible multimode diode lasers. Resonance matching of the multimode UV laser is achieved in a wide wavelength range and with good tolerance for various operating conditions. Large mode-hops provide an off-resonance baseline, eliminating interferences from other gas species with broadband absorption. A sensitivity of 1 mu g/m(3) is obtained for a 1-m path length and 30-s integration time. The performance of the system shows promise for mercury monitoring in industrial applications.

Somesfalean, GabrielLund University,Lunds universitet,KTH,Zhejiang-KTH Joint Research Center of Photonics, JORCEP,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)fysi-gso (författare)
Svanberg, SuneLund University,Lunds universitet,KTH,Zhejiang-KTH Joint Research Center of Photonics, JORCEP,Atomfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Atomic Physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)fysi-ssv (författare)
Zhang, Zhiguo (författare)
Wu, Shaohua (författare)
AtomfysikFysiska institutionen (creator_code:org_t)

Av författaren/redakt...: Lou, Xiutao; Somesfalean, Gab ...; Svanberg, Sune; Zhang, Zhiguo; Wu, Shaohua

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