The essential data of matter-laser interaction which govern the creation of the plasma are described and are shown to permit the determination of several plasma parameters. The choice of an electrical detection adapted to a continuous plasma under atmospheric pressure allows the study by analogy of the transient laser-produced plasma (LPP). Experimental results confirm that laser-enhanced ionization detection in an LPP at atmospheric pressure is not feasible because ionization is “strong” and collection is “weak.”
DittrichK. and WennrichR., Prog. Anal. Atomic Spectrosc.7, 139 (1984).
3.
PopovA. M., Sov. Phys. Tech. Phys.27, 1293 (1982).
4.
FrostC. A.WoodworthJ. R.OlsenJ. N., and GreenT. A., Appl. Phys. Lett.41, 813 (1982).
5.
KagawaK. and YokoïS., Spectrochim. Acta37B, 789 (1982).
6.
MayoS.LucatortoT. B., and LutherG. G., Anal. Chem.54, 553 (1982).
7.
BekovG. I.YegorovA. S.LetokhovV. S., and RadayevV. N.Nature301, 410 (1983).
8.
HurstG. S.PayneM. G.KramerS. D., and YoungJ. P., Rev. of Mod. Phys.51, 767 (1979).
9.
FabbroR.FabreE.AminanoffF.Garban-LabauneC.VirmontJ., and WeinfeldM., Phys. Rev. A26, 2289 (1982).
10.
GoldsackT. J.KilkennyJ. D.MacGowanB. M.VeatsS. A.CunninghamP. F.LewisC. L. S.KeyM. J.RumsbyP. T., and TonerW. T., Opt. Comm.42, 55 (1982).
11.
LeisingW., Ph.D. thesis, University of Rochester, England (University Microfilms Limited, High Wycomb, England, 1973), 73–14, p. 822.
12.
Les Lasers de Puissance, EloyJ. F., Ed. (Masson, Paris, 1985).
13.
Optogalvanic Spectroscopy and Its Applications, CamusP., Ed., J. Phys. Colloq.44 (suppl. C7) (1983).
14.
SmythK. C.SchenckP. K., and MallardW. G., in Laser Probes of Chemistry, CrosleyD. R., Ed., ACS Symposium Series 134 (American Chemical Society, Washington, D.C., 1980), pp. 175–181.
15.
SchenckP. K.TravisJ. C.TurkG. C., and O'HaverT. C., J. Phys. Chem.85, 2547 (1981).
