OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 47, Iss. 31 — Nov. 1, 2008
  • pp: G1–G6

Time-resolved spectroscopy measurements of hydrogen-alpha, -beta, and -gamma emissions

Christian G. Parigger, Matthew Dackman, and James O. Hornkohl  »View Author Affiliations


Applied Optics, Vol. 47, Issue 31, pp. G1-G6 (2008)
http://dx.doi.org/10.1364/AO.47.0000G1


View Full Text Article

Enhanced HTML    Acrobat PDF (1306 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Hydrogen emission spectroscopy results are reported following laser-induced optical breakdown with infrared Nd:YAG laser radiation focused into a pulsed methane flow. Measurements of Stark-broadened atomic hydrogen-alpha, -beta, and -gamma lines show electron number densities of 0.3 to 4 × 10 17 cm 3 for time delays of 2.1 to 0.4 μs after laser-induced optical breakdown. In methane flow, recombination molecular spectra of the Δ ν = + 2 progression of the C 2 Swan system are discernable in the H β and H γ plasma emissions within the first few microseconds. The recorded atomic spectra indicate the occurrence of hydrogen self-absorption for pulsed CH 4 flow pressures of 2.7 × 10 5 Pa ( 25 psig ) and 6.5 × 10 5 Pa ( 80 psig ).

© 2008 Optical Society of America

OCIS Codes
(020.3690) Atomic and molecular physics : Line shapes and shifts
(140.3440) Lasers and laser optics : Laser-induced breakdown
(300.6210) Spectroscopy : Spectroscopy, atomic
(300.6390) Spectroscopy : Spectroscopy, molecular
(350.5400) Other areas of optics : Plasmas

History
Original Manuscript: April 2, 2008
Manuscript Accepted: May 28, 2008
Published: July 16, 2008

Citation
Christian G. Parigger, Matthew Dackman, and James O. Hornkohl, "Time-resolved spectroscopy measurements of hydrogen-alpha, -beta, and -gamma emissions," Appl. Opt. 47, G1-G6 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-31-G1

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited