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 | |
| Publication status | Published - Dec 2013 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
Cite this
LED-based fourier-transform spectroscopy of H2 18O in the range 15000-15700 cm-1. / Mikhailenko, S. N.; Serdyukov, V. I.; Sinitsa, L. N.; Vasilchenko, S. S.
In: Optics and Spectroscopy (English translation of Optika i Spektroskopiya), Vol. 115, No. 6, 12.2013, p. 814-822.Research output: Contribution to journal › Article
}
TY - JOUR
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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U2 - 10.1134/S0030400X13120126
DO - 10.1134/S0030400X13120126
M3 - Article
VL - 115
SP - 814
EP - 822
JO - Optics and Spectroscopy (English translation of Optika i Spektroskopiya)
JF - Optics and Spectroscopy (English translation of Optika i Spektroskopiya)
SN - 0030-400X
IS - 6
ER -