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

Impact of collisional quenching on the detection of Hg Cl 2 via photofragment emission

Not Accessible

Your library or personal account may give you access

Abstract

The effects of collisional quenching on photofragment emission (PFE) detection of vapor-phase HgCl2 in combustion flue gas constituents are investigated. Exciting HgCl2 via the 1Πu11Σg+1 transition, time-resolved measurements of emission from the Hg(63P1) daughter in buffer-gas mixtures of N2, O2, and CO2 indicate that the fragmentation pathway passes through a long-lived intermediate species, which we assign to Hg(63P2). Total quenching rate coefficients of Hg(63P1) by N2, O2, and CO2 are consistent with values reported in the literature. In addition, total quenching rate coefficients for the intermediate Hg(63P2) state are determined to be 1.72(±0.08)×1010cm3molecule1s1 and 2.90(±0.37)×1010cm3molecule1s1 for N2 and O2, respectively. An analysis of the impact of the collisionally dependent energy-transfer process that precedes the formation of Hg(63P1) on the use of PFE to measure HgCl2 concentration is presented.

© 2008 Optical Society of America

Full Article  |  PDF Article
More Like This
Pulsed laser photofragment emission for detection of mercuric chloride

Alexandra A. Hoops and Thomas A. Reichardt
Appl. Opt. 45(24) 6180-6186 (2006)

Detection of mercuric chloride by photofragment emission using a frequency-converted fiber amplifier

Alexandra A. Hoops, Thomas A. Reichardt, Dahv. A. V. Kliner, Jeffrey P. Koplow, and Sean W. Moore
Appl. Opt. 46(19) 4008-4014 (2007)

Infrared-Emission Studies of Electronic-to-Vibrational Energy Transfer. IV: Hg* + HF

H. Heydtmann, J. C. Polanyi, and R. T. Taguchi
Appl. Opt. 10(8) 1755-1759 (1971)

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 (9)

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 (2)

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

Equations (16)

You do not have subscription access to this journal. Equations 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