Detection of vibrationally excited hyroxyl radicals by absorption of the DFB diode laser radiation at the transition (ν = 3) ← (ν = 1)

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Detection of vibrationally excited hyroxyl radicals by absorption of the DFB diode laser radiation at the transition (ν = 3) ← (ν = 1). / Chesnokov, E. N.; Plastinina, D. M.; Koshlyakov, P. V.

In: Chemical Physics Letters, Vol. 849, 141445, 16.08.2024.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{a5c84cca038042ffbfdd557dd589ac11,

title = "Detection of vibrationally excited hyroxyl radicals by absorption of the DFB diode laser radiation at the transition (ν = 3) ← (ν = 1)",

abstract = "Using a DFB laser diode at 1509.3 nm the OH(v = 1) formed in the reaction O(1D) + H2O was detected by absorption at the transition (v = 3)←(v = 1). The advantage of the method is the ability to obtain reliable data on absolute concentrations of vibrationally excited radicals. The spectrum of transient absorption near Q(3/2) line of 2Π3/2 term was recorded. At a pressure of 8 Torr He, the rotation distribution was found to be in thermal equilibrium. The yields of OH(v = 1) and OH(v = 2) in the chemical reaction were determined. The rate constants of vibrational relaxation of OH(v = 1) on H2O and SF6 were measured.",

keywords = "DFB laser diode, Overtone spectroscopy, Vibrational relaxation, Vibrationally excited hydroxyl radical",

author = "Chesnokov, {E. N.} and Plastinina, {D. M.} and Koshlyakov, {P. V.}",

note = "This work was funded by the Russian Science Foundation [grant no. 19-73-20060].",

year = "2024",

month = aug,

day = "16",

doi = "10.1016/j.cplett.2024.141445",

language = "English",

volume = "849",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Detection of vibrationally excited hyroxyl radicals by absorption of the DFB diode laser radiation at the transition (ν = 3) ← (ν = 1)

AU - Chesnokov, E. N.

AU - Plastinina, D. M.

AU - Koshlyakov, P. V.

N1 - This work was funded by the Russian Science Foundation [grant no. 19-73-20060].

PY - 2024/8/16

Y1 - 2024/8/16

N2 - Using a DFB laser diode at 1509.3 nm the OH(v = 1) formed in the reaction O(1D) + H2O was detected by absorption at the transition (v = 3)←(v = 1). The advantage of the method is the ability to obtain reliable data on absolute concentrations of vibrationally excited radicals. The spectrum of transient absorption near Q(3/2) line of 2Π3/2 term was recorded. At a pressure of 8 Torr He, the rotation distribution was found to be in thermal equilibrium. The yields of OH(v = 1) and OH(v = 2) in the chemical reaction were determined. The rate constants of vibrational relaxation of OH(v = 1) on H2O and SF6 were measured.

AB - Using a DFB laser diode at 1509.3 nm the OH(v = 1) formed in the reaction O(1D) + H2O was detected by absorption at the transition (v = 3)←(v = 1). The advantage of the method is the ability to obtain reliable data on absolute concentrations of vibrationally excited radicals. The spectrum of transient absorption near Q(3/2) line of 2Π3/2 term was recorded. At a pressure of 8 Torr He, the rotation distribution was found to be in thermal equilibrium. The yields of OH(v = 1) and OH(v = 2) in the chemical reaction were determined. The rate constants of vibrational relaxation of OH(v = 1) on H2O and SF6 were measured.

KW - DFB laser diode

KW - Overtone spectroscopy

KW - Vibrational relaxation

KW - Vibrationally excited hydroxyl radical

UR - https://www.mendeley.com/catalogue/6ace45a1-a724-33fa-a582-7f7289f2ee7b/

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85196741126&origin=inward&txGid=1f542bb571e2181d101977fe9b6a22fe

U2 - 10.1016/j.cplett.2024.141445

DO - 10.1016/j.cplett.2024.141445

M3 - Article

VL - 849

JO - Chemical Physics Letters

JF - Chemical Physics Letters

SN - 0009-2614

M1 - 141445

ER -

ID: 60816503