Incoherent broad-band cavity-enhanced absorption spectroscopy of azulene in a supersonic jet

Sven E. Fiedler; Gerald Hoheisel; Albert A. Ruth; Achim Hese

doi:10.1016/j.cplett.2003.10.075

Incoherent broad-band cavity-enhanced absorption spectroscopy of azulene in a supersonic jet

Sven E. Fiedler
, Gerald Hoheisel
, Albert A. Ruth
, Achim Hese

School of Physics

Technical University of Berlin

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

Abstract

The application of incoherent broad-band cavity-enhanced absorption spectroscopy (IBBCEAS) to isolated jet-cooled gas-phase species is demonstrated on basis of the S₁←S₀ transition of azulene in a continuous supersonic expansion. By focusing white light from a high power Xe-lamp into an optically stable resonator, which is intercepted by the supersonic seeded jet, the absorption is measured over a broad spectral range between 17300 and 20255 cm^-1 with a resolution of ≈4 cm ^-1. The resolution, which is due to the dispersion of transmitted light by a grating monochromator, is sufficient to monitor the highly congested vibronic structure 3000 cm^-1 above the S_1,0 origin of azulene. The sensitivity required for this absorption experiment compares well to that of conventional pulsed cavity ring-down measurements.

Original language	English
Pages (from-to)	447-453
Number of pages	7
Journal	Chemical Physics Letters
Volume	382
Issue number	3-4
DOIs	https://doi.org/10.1016/j.cplett.2003.10.075
Publication status	Published - 5 Dec 2003

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title = "Incoherent broad-band cavity-enhanced absorption spectroscopy of azulene in a supersonic jet",

abstract = "The application of incoherent broad-band cavity-enhanced absorption spectroscopy (IBBCEAS) to isolated jet-cooled gas-phase species is demonstrated on basis of the S1←S0 transition of azulene in a continuous supersonic expansion. By focusing white light from a high power Xe-lamp into an optically stable resonator, which is intercepted by the supersonic seeded jet, the absorption is measured over a broad spectral range between 17300 and 20255 cm-1 with a resolution of ≈4 cm -1. The resolution, which is due to the dispersion of transmitted light by a grating monochromator, is sufficient to monitor the highly congested vibronic structure 3000 cm-1 above the S1,0 origin of azulene. The sensitivity required for this absorption experiment compares well to that of conventional pulsed cavity ring-down measurements.",

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T1 - Incoherent broad-band cavity-enhanced absorption spectroscopy of azulene in a supersonic jet

AU - Fiedler, Sven E.

AU - Hoheisel, Gerald

AU - Ruth, Albert A.

AU - Hese, Achim

PY - 2003/12/5

Y1 - 2003/12/5

N2 - The application of incoherent broad-band cavity-enhanced absorption spectroscopy (IBBCEAS) to isolated jet-cooled gas-phase species is demonstrated on basis of the S1←S0 transition of azulene in a continuous supersonic expansion. By focusing white light from a high power Xe-lamp into an optically stable resonator, which is intercepted by the supersonic seeded jet, the absorption is measured over a broad spectral range between 17300 and 20255 cm-1 with a resolution of ≈4 cm -1. The resolution, which is due to the dispersion of transmitted light by a grating monochromator, is sufficient to monitor the highly congested vibronic structure 3000 cm-1 above the S1,0 origin of azulene. The sensitivity required for this absorption experiment compares well to that of conventional pulsed cavity ring-down measurements.

AB - The application of incoherent broad-band cavity-enhanced absorption spectroscopy (IBBCEAS) to isolated jet-cooled gas-phase species is demonstrated on basis of the S1←S0 transition of azulene in a continuous supersonic expansion. By focusing white light from a high power Xe-lamp into an optically stable resonator, which is intercepted by the supersonic seeded jet, the absorption is measured over a broad spectral range between 17300 and 20255 cm-1 with a resolution of ≈4 cm -1. The resolution, which is due to the dispersion of transmitted light by a grating monochromator, is sufficient to monitor the highly congested vibronic structure 3000 cm-1 above the S1,0 origin of azulene. The sensitivity required for this absorption experiment compares well to that of conventional pulsed cavity ring-down measurements.

UR - https://www.scopus.com/pages/publications/0345724928

U2 - 10.1016/j.cplett.2003.10.075

DO - 10.1016/j.cplett.2003.10.075

M3 - Article

AN - SCOPUS:0345724928

SN - 0009-2614

VL - 382

SP - 447

EP - 453

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 3-4

ER -

Incoherent broad-band cavity-enhanced absorption spectroscopy of azulene in a supersonic jet

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