Selective detection of radicals and ions in a slit-jet discharge by degenerate and two-color four-wave mixing.
作者： Ranjini Raghunandan , Fabio J. Mazzotti , Richa Chauhan , Marek Tulej , John P. Maier
DOI: 10.1021/JP9022663
关键词:
摘要: Degenerate four-wave mixing (DFWM) was used to record the spectra of charged and neutral carbon-containing radicals generated in a pulsed discharge source within supersonic slit-jet expansion. Detection limits ∼10 9 molecules cm -3 are achieved. The DFWM method allows selective molecular detection by varying timings. Increased spectral selectivity is obtained applying two-color, doubly resonant variant. This shows potential techniques for sensitive analysis discharges. methods successfully C4H, HC2S, HC4H + with signal-to-noise range 10 2 -10 4 .
core.ac.uk
harvard.edu
acs.org
sci-hub.se 参考文章(37)
Kennosuke Hoshina, Hiroshi Kohguchi, Yasuhiro Ohshima, Yasuki Endo, Laser-induced fluorescence spectroscopy of the C4H and C4D radicals in a supersonic jet Journal of Chemical Physics. ,vol. 108, pp. 3465- 3478 ,(1998) , 10.1063/1.475746
Hans Joachim Eichler, Peter Günter, Dieter W. Pohl, Laser-Induced Dynamic Gratings ,(1986)
Harold Linnartz, Tomasz Motylewski, John P. Maier, The 2Π←X 2Π electronic spectra of C8H and C10H in the gas phase Journal of Chemical Physics. ,vol. 109, pp. 3819- 3823 ,(1998) , 10.1063/1.476981
Feng Dong, Dairene Uy, Scott Davis, Mark Child, David J. Nesbitt, Supersonically cooled hydronium ions in a slit-jet discharge: high-resolution infrared spectroscopy and tunneling dynamics of HD2O+. Journal of Chemical Physics. ,vol. 122, pp. 224301- 224301 ,(2005) , 10.1063/1.1924699
E.B. Jochnowitz, J.P. Maier, Electronic spectroscopy of carbon chains Molecular Physics. ,vol. 106, pp. 2093- 2106 ,(2008) , 10.1080/00268970802208588
Thomas J. Butenhoff, Eric A. Rohlfing, Resonant four-wave mixing spectroscopy of transient molecules in free jets Journal of Chemical Physics. ,vol. 97, pp. 1595- 1598 ,(1992) , 10.1063/1.463234
H. Ding, T. W. Schmidt, T. Pino, A. E. Boguslavskiy, F. Güthe, J. P. Maier, Gas phase electronic spectra of the linear carbon chains HC2n+1H (n=3–6,9) Journal of Chemical Physics. ,vol. 119, pp. 814- 819 ,(2003) , 10.1063/1.1578476
John P. Maier, Fritz Thommen, Radiative and nonradiative decay rates of state selected H–(C≡C)–2H+, D–(C≡C)–2D+, Ã2Πu, determined by a photoelectron–photon coincidence technique Journal of Chemical Physics. ,vol. 73, pp. 5616- 5619 ,(1980) , 10.1063/1.440083
R. L. Farrow, D. J. Rakestraw, Detection of Trace Molecular Species Using Degenerate Four-Wave Mixing Science. ,vol. 257, pp. 1894- 1900 ,(1992) , 10.1126/SCIENCE.257.5078.1894
J. J. Scherer, J. B. Paul, A. O'Keefe, R. J. Saykally, Cavity Ringdown Laser Absorption Spectroscopy: History, Development, and Application to Pulsed Molecular Beams. Chemical Reviews. ,vol. 97, pp. 25- 52 ,(1997) , 10.1021/CR930048D