LED-based fourier-transform spectroscopy of H2 18O in the range 15000-15700 cm-1

Abstract

The spectrum of H₂ ¹⁸O in the range 15000-15700 cm^-1 has been recorded for the first time on a Fourier-transform spectrometer using a high-brightness light-emitting diode as a radiation source. The measurements have been conducted at room temperature with a resolution of 0.05 cm^-1. A threshold sensitivity in absorption of 2 × 10 ^-7 cm^-1 has been achieved due to both the use of a light-emitting diode and optimization of the multipass cell with a base length of 60 cm, which ensured a 19.2-m length of the absorbing layer. A high signal-to-noise ratio (S/N = 2000-10000) made it possible to record about 670 water-vapor lines with intensities of 1.0 × 10^-26-2.2 × 10^-24 cm/mol at 296 K. The energies of 265 vibrational-rotational levels of the H₂ ¹⁸O molecule are determined and attributed to seven vibrational states, namely, (033), (113), (212), (231), (311), (330), and (410).

Original language	English
Pages (from-to)	814-822
Number of pages	9
Journal	Optics and Spectroscopy (English translation of Optika i Spektroskopiya)
Volume	115
Issue number	6
DOIs	https://doi.org/10.1134/S0030400X13120126
Publication status	Published - Dec 2013

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics

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10.1134/S0030400X13120126

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@article{2c5c1ac77bb04b2eb63d99919c7f51d6,

title = "LED-based fourier-transform spectroscopy of H2 18O in the range 15000-15700 cm-1",

abstract = "The spectrum of H2 18O in the range 15000-15700 cm-1 has been recorded for the first time on a Fourier-transform spectrometer using a high-brightness light-emitting diode as a radiation source. The measurements have been conducted at room temperature with a resolution of 0.05 cm-1. A threshold sensitivity in absorption of 2 × 10 -7 cm-1 has been achieved due to both the use of a light-emitting diode and optimization of the multipass cell with a base length of 60 cm, which ensured a 19.2-m length of the absorbing layer. A high signal-to-noise ratio (S/N = 2000-10000) made it possible to record about 670 water-vapor lines with intensities of 1.0 × 10-26-2.2 × 10-24 cm/mol at 296 K. The energies of 265 vibrational-rotational levels of the H2 18O molecule are determined and attributed to seven vibrational states, namely, (033), (113), (212), (231), (311), (330), and (410).",

author = "Mikhailenko, {S. N.} and Serdyukov, {V. I.} and Sinitsa, {L. N.} and Vasilchenko, {S. S.}",

year = "2013",

month = dec,

doi = "10.1134/S0030400X13120126",

language = "English",

volume = "115",

pages = "814--822",

journal = "Optics and Spectroscopy (English translation of Optika i Spektroskopiya)",

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T1 - LED-based fourier-transform spectroscopy of H2 18O in the range 15000-15700 cm-1

AU - Mikhailenko, S. N.

AU - Serdyukov, V. I.

AU - Sinitsa, L. N.

AU - Vasilchenko, S. S.

PY - 2013/12

Y1 - 2013/12

N2 - The spectrum of H2 18O in the range 15000-15700 cm-1 has been recorded for the first time on a Fourier-transform spectrometer using a high-brightness light-emitting diode as a radiation source. The measurements have been conducted at room temperature with a resolution of 0.05 cm-1. A threshold sensitivity in absorption of 2 × 10 -7 cm-1 has been achieved due to both the use of a light-emitting diode and optimization of the multipass cell with a base length of 60 cm, which ensured a 19.2-m length of the absorbing layer. A high signal-to-noise ratio (S/N = 2000-10000) made it possible to record about 670 water-vapor lines with intensities of 1.0 × 10-26-2.2 × 10-24 cm/mol at 296 K. The energies of 265 vibrational-rotational levels of the H2 18O molecule are determined and attributed to seven vibrational states, namely, (033), (113), (212), (231), (311), (330), and (410).

AB - The spectrum of H2 18O in the range 15000-15700 cm-1 has been recorded for the first time on a Fourier-transform spectrometer using a high-brightness light-emitting diode as a radiation source. The measurements have been conducted at room temperature with a resolution of 0.05 cm-1. A threshold sensitivity in absorption of 2 × 10 -7 cm-1 has been achieved due to both the use of a light-emitting diode and optimization of the multipass cell with a base length of 60 cm, which ensured a 19.2-m length of the absorbing layer. A high signal-to-noise ratio (S/N = 2000-10000) made it possible to record about 670 water-vapor lines with intensities of 1.0 × 10-26-2.2 × 10-24 cm/mol at 296 K. The energies of 265 vibrational-rotational levels of the H2 18O molecule are determined and attributed to seven vibrational states, namely, (033), (113), (212), (231), (311), (330), and (410).

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