Resonance-enhanced laser-induced plasma spectroscopy: Ambient gas effects

Spectrochimica Acta - Part B Atomic Spectroscopy

Volumn 58, Issue 9, 2003, Pages 1613-1623

  Lui, S L ^a   Cheung, N H ^a  

^a HONG KONG BAPTIST UNIVERSITY   (Hong Kong)

Author keywords

Ambient gas effects; Double pulse approach; Laser induced breakdown spectroscopy; Resonance enhanced laser induced plasma spectroscopy

Indexed keywords

COOLING; DYE LASERS; LASER PRODUCED PLASMAS; LASER PULSES; NEODYMIUM LASERS; RESONANCE; SIGNAL TO NOISE RATIO; THERMAL INSULATION; THERMAL PLUMES;

PLASMA SPECTROSCOPY;

PLASMA APPLICATIONS;

EID: 0141621136     PISSN: 05848547     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0584-8547(03)00139-3     Document Type: Article

References (20)

1. Rusak D.A., Castle B.C., Smith B.W., Winefordner J.D. Crit. Rev. Anal. Chem. 27:1997;257-290. for a review of laser-induced breakdown spectroscopy.
2. Uebbing J., Brust J., Sdorra W., Leis F., Niemax K. Appl. Spectrosc. 45:1991;1419-1423.
3. St-Onge L., Detalle V., Sabsabi M. Spectrochim. Acta Part B. 57:2002;121-135.
4. Chan S.Y., Cheung N.H. Anal. Chem. 72:2000;2087-2092.
5. Lui S.L., Cheung N.H. Appl. Phys. Lett. 81:2002;5114-5116.
6. Wu J.D., Cheung N.H. Appl. Spectrosc. 55:2001;366-370.
7. Lewis A.L. II, Piepmeier E.H. Appl. Spectrosc. 37:1983;523-530.
8. Iida Y. Spectrochim. Acta Part B. 45:1990;1353-1367.
9. Lee Y.-L., Thiem T.L., Kim G.-H., Teng Y.-Y., Sneddon J. Appl. Spectrosc. 46:1992;1597-1604.
10. Harilal S.S., Bindhu C.V., Nampoori V.P.N., Vallabhan C.P.G. Appl. Phys. Lett. 72:1998;167-169.
11. Yalcin S., Crosley D.R., Smith G.P., Faris G.W. Appl. Phys. B68:1999;121-130.
12. Gu H.P., Lou Q.H., Cheung N.H., Chen S.C., Wang Z.Y., Lim P.K. Appl. Phys. B. B58:1994;143-148.
13. Lo K.M., Cheung N.H. Appl. Spectrosc. 56:2002;682-688.
14. Ng C.W., Ho W.F., Cheung N.H. Appl. Spectrosc. 51:1997;976-982.
15. -3. Densities outside the range are not trustworthy though the relative trend should be reliable for near neighborhood extrapolation.
16. According to the ICCD manufacturer, a TTL pulse width of 50 ns gave an optical width of 37 ns.
17. At t=25 ns, although the ICCD was electronically gated on from 0 to 50 ns, it was already half-closing optically at 36 ns. The dye laser pulse did not peak until approximately 32 ns.
18. Although the accuracy of T was approximately ±15% (see Ref. [13]), its precision was within ±4%.
19. Measures R.M., Cardinal P.G. Phys. Rev. A. 23:1981;804-815.
20. The off-resonance SNR of 10 was measured at the same lower gain as that of Figs. 2 and 4. If the full gain of Fig. 6 were used, the SNR might increase slightly. The extent could be estimated from the on-resonance results when the SNR's increased from 48 to 53 (1 bar air) and 95 to 110 (13 mbar Xe) as gain was increased.