Study of the visible emission induced by IR multiple-photon excitation of OsO4

K. L. Kompa; H. Lamprecht; H. Schröder; A. A. Puretzky; V. V. Tyakht

doi:10.1063/1.450410

Study of the visible emission induced by IR multiple-photon excitation of OsO₄

K. L. Kompa, H. Lamprecht, H. Schröder, A. A. Puretzky, V. V. Tyakht

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

15 Scopus citations

Abstract

The visible luminescence induced in the OsO₄ molecule by the action of CO₂-laser radiation was studied in a wide range of laser fluences (2-1000 J/cm²). A novel approach consisting in separating successive dissociation and luminescence events in the molecule and its fragments by varying the laser fluence was developed experimentally to study the visible emission induced by multiple-photon excitation (MPE) in an IR-laser field. Three different luminescence stages with definite fluence thresholds were found in MPE of the OsO₄ molecule. The luminescence spectra and the velocities of the luminescent species were measured at each stage. A theoretical model is proposed which explains the observed three-stage emission in OsO ₄ by the following sequence of processes taking place during the IR-laser pulse: inverse electronic relaxation (IER)-multiple-photon dissociation (MPD) of the parent molecule (OsO₄-first stage)-IER-MPD of the primary fragment (OsO₃-second stage)-IER-MPD of the secondary fragment (OsO₂-third stage).

Original language	English
Pages (from-to)	2020-2034
Number of pages	15
Journal	Journal of Chemical Physics
Volume	84
Issue number	4
DOIs	https://doi.org/10.1063/1.450410
State	Published - 1985
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1063/1.450410

Cite this

@article{678d5c303b804dd3ba4d2972878fdae1,

title = "Study of the visible emission induced by IR multiple-photon excitation of OsO4",

abstract = "The visible luminescence induced in the OsO4 molecule by the action of CO2-laser radiation was studied in a wide range of laser fluences (2-1000 J/cm2). A novel approach consisting in separating successive dissociation and luminescence events in the molecule and its fragments by varying the laser fluence was developed experimentally to study the visible emission induced by multiple-photon excitation (MPE) in an IR-laser field. Three different luminescence stages with definite fluence thresholds were found in MPE of the OsO4 molecule. The luminescence spectra and the velocities of the luminescent species were measured at each stage. A theoretical model is proposed which explains the observed three-stage emission in OsO 4 by the following sequence of processes taking place during the IR-laser pulse: inverse electronic relaxation (IER)-multiple-photon dissociation (MPD) of the parent molecule (OsO4-first stage)-IER-MPD of the primary fragment (OsO3-second stage)-IER-MPD of the secondary fragment (OsO2-third stage).",

author = "Kompa, {K. L.} and H. Lamprecht and H. Schr{\"o}der and Puretzky, {A. A.} and Tyakht, {V. V.}",

year = "1985",

doi = "10.1063/1.450410",

language = "English",

volume = "84",

pages = "2020--2034",

journal = "Journal of Chemical Physics",

issn = "0021-9606",

publisher = "American Institute of Physics",

number = "4",

}

TY - JOUR

T1 - Study of the visible emission induced by IR multiple-photon excitation of OsO4

AU - Kompa, K. L.

AU - Lamprecht, H.

AU - Schröder, H.

AU - Puretzky, A. A.

AU - Tyakht, V. V.

PY - 1985

Y1 - 1985

N2 - The visible luminescence induced in the OsO4 molecule by the action of CO2-laser radiation was studied in a wide range of laser fluences (2-1000 J/cm2). A novel approach consisting in separating successive dissociation and luminescence events in the molecule and its fragments by varying the laser fluence was developed experimentally to study the visible emission induced by multiple-photon excitation (MPE) in an IR-laser field. Three different luminescence stages with definite fluence thresholds were found in MPE of the OsO4 molecule. The luminescence spectra and the velocities of the luminescent species were measured at each stage. A theoretical model is proposed which explains the observed three-stage emission in OsO 4 by the following sequence of processes taking place during the IR-laser pulse: inverse electronic relaxation (IER)-multiple-photon dissociation (MPD) of the parent molecule (OsO4-first stage)-IER-MPD of the primary fragment (OsO3-second stage)-IER-MPD of the secondary fragment (OsO2-third stage).

AB - The visible luminescence induced in the OsO4 molecule by the action of CO2-laser radiation was studied in a wide range of laser fluences (2-1000 J/cm2). A novel approach consisting in separating successive dissociation and luminescence events in the molecule and its fragments by varying the laser fluence was developed experimentally to study the visible emission induced by multiple-photon excitation (MPE) in an IR-laser field. Three different luminescence stages with definite fluence thresholds were found in MPE of the OsO4 molecule. The luminescence spectra and the velocities of the luminescent species were measured at each stage. A theoretical model is proposed which explains the observed three-stage emission in OsO 4 by the following sequence of processes taking place during the IR-laser pulse: inverse electronic relaxation (IER)-multiple-photon dissociation (MPD) of the parent molecule (OsO4-first stage)-IER-MPD of the primary fragment (OsO3-second stage)-IER-MPD of the secondary fragment (OsO2-third stage).

UR - http://www.scopus.com/inward/record.url?scp=36549093140&partnerID=8YFLogxK

U2 - 10.1063/1.450410

DO - 10.1063/1.450410

M3 - Article

AN - SCOPUS:36549093140

SN - 0021-9606

VL - 84

SP - 2020

EP - 2034

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

IS - 4

ER -

Study of the visible emission induced by IR multiple-photon excitation of OsO₄

Abstract

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this