Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

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

Not Accessible

Your library or personal account may give you access

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 4×1017cm3 for time delays of 2.1 to 0.4μs after laser-induced optical breakdown. In methane flow, recombination molecular spectra of the Δν=+2 progression of the C2 Swan system are discernable in the Hβ and Hγ plasma emissions within the first few microseconds. The recorded atomic spectra indicate the occurrence of hydrogen self-absorption for pulsed CH4 flow pressures of 2.7×105Pa (25psig) and 6.5×105Pa (80psig).

© 2008 Optical Society of America

Full Article  |  PDF Article
More Like This
Analysis of time-resolved superposed atomic hydrogen Balmer lines and molecular diatomic carbon spectra

Christian G. Parigger, Alexander Woods, and James O. Hornkohl
Appl. Opt. 51(7) B1-B6 (2012)

Measurements of aluminum and hydrogen microplasma

Christian G. Parigger, James O. Hornkohl, and László Nemes
Appl. Opt. 46(19) 4026-4031 (2007)

Laser-induced carbon plasma emission spectroscopic measurements on solid targets and in gas-phase optical breakdown

László Nemes, Anna M. Keszler, James O. Hornkohl, and Christian G. Parigger
Appl. Opt. 44(18) 3661-3667 (2005)

Cited By

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

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (7)

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

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (3)

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

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved