Infrared and near infrared emission spectra of SbH and SbD

Yu, Shanshan; Fu, Dejian; Shayesteh, Alireza; Gordon, Iouli E.; Appadoo, Dominique; Bernath, Peter F.

doi:10.1016/j.jms.2004.09.012

Cited by 12 publications

(9 citation statements)

References 22 publications

(44 reference statements)

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“…A systematic trend in the observed minus calculated line positions, caused by the unresolved tellurium isotopic lines of the X 2 P 1/2 -X 2 P 3/2 transition, was found as expected for all bands of the X 2 P 1/2 -X 2 P 3/2 transition. The same effect was noted in our study of SbH and SbD and is discussed in more detail in [14].…”

Section: Hund's Case (A) Fits For 130 Ted 128 Ted and 126 Tedsupporting

confidence: 89%

“…The emission source to generate TeH and TeD radicals was the same as in our previous studies of metal hydrides [14][15][16][17][18]. Tellurium powder was placed inside an alumina tube (5 cm · 120 cm) and heated to 500°C.…”

Section: Methodsmentioning

confidence: 99%

“…Gillett et al saw 5 low J transitions for TeH and 11 transitions for TeD covering the 1-0, 2-1, and 3-2 bands. Our discharge furnace source has been very successful in extending the vibration-rotation spectra of a number of metal hydrides including SbH [14]. We therefore recorded new spectra for TeH.…”

Section: Introductionmentioning

confidence: 99%

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Infrared and near infrared emission spectra of TeH and TeD

Shayesteh

et al. 2005

Journal of Molecular Spectroscopy

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The vibration-rotation emission spectra for the X 2 P ground state and the near infrared emission spectra of the X 2 P 1/2 -X 2 P 3/2 system of the TeH and TeD free radicals have been measured at high resolution using a Fourier transform spectrometer. TeH and TeD were generated in a tube furnace with a DC discharge of a flowing mixture of argon, hydrogen (or deuterium), and tellurium vapor. In the infrared region, for the X 2 P 3/2 spin component we observed the 1-0, 2-1, and 3-2 vibrational bands for most of the eight isotopologues of TeH and the 1-0 and 2-1 bands for three isotopologues of TeD. For the X 2 P 1/2 -X 2 P 3/2 transition, we observed the 0-0 and 1-1 bands for TeH and the 0-0, 1-1, and 2-2 bands for TeD. Except for a few lines, the tellurium isotopic shift was not resolved for the X 2 P 1/2 -X 2 P 3/2 transitions of TeH and TeD. Local perturbations with Dv = 2 between the two spin components of the X 2 P state of TeH were found: X 2 P 1/2 , v = 0 with X 2 P 3/2 , v = 2; X 2 P 1/2 , v = 1 with X 2 P 3/2 , v = 3. The new data were combined with the previous data from the literature and two kinds of fits (HundÕs case (a) and HundÕs case (c)) were carried out for each of the 10 observed isotopologues

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Section: Hund's Case (A) Fits For 130 Ted 128 Ted and 126 Tedsupporting

confidence: 89%

Section: Methodsmentioning

confidence: 99%

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Infrared and near infrared emission spectra of TeH and TeD

Shayesteh

et al. 2005

Journal of Molecular Spectroscopy

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“…Highly diagonal FCFs lead to suppressed vibrational excitation during the rotational cooling ( Figure 2). Since there does not exist experimental data for TeH + , we attempt to evaluate the accuracy of the TeH + multireference configuration interaction with single and double excitations and Davidson correction for higher excitations (MRCISD+Q/aV5Z) calculations [26] by comparing theoretical [28] and experimental [29][30][31] investigations of the isoelectronic species antimony hydride (SbH). Compared with the TeH + calculation, the MRCISD+Q calculation for SbH uses a smaller basis set (of quadruple zeta quality) and fewer configuration state functions and is expected to be less accurate.…”

Section: Molecular Structurementioning

confidence: 99%

Optical Pumping of TeH+: Implications for the Search for Varying mp/me

Stollenwerk

Kokish

Oliveira-Filho

et al. 2018

Atoms

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Molecular overtone transitions provide optical frequency transitions sensitive to variation in the proton-to-electron mass ratio ( μ ≡ m p / m e ). However, robust molecular state preparation presents a challenge critical for achieving high precision. Here, we characterize infrared and optical-frequency broadband laser cooling schemes for TeH + , a species with multiple electronic transitions amenable to sustained laser control. Using rate equations to simulate laser cooling population dynamics, we estimate the fractional sensitivity to μ attainable using TeH + . We find that laser cooling of TeH + can lead to significant improvements on current μ variation limits.

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“…Since experimental data for TeH + structure are not currently available, we attempt to evaluate the accuracy of the TeH + multireference configuration interaction with single and double excitations and Davidson correction for higher excitations (MRCISD+Q/aV5Z) calculations [26] by comparing theoretical [28] and experimental [29][30][31] investigations of the isoelectronic species antimony hydride set (of quadruple zeta quality) and fewer configuration state functions and is expected to be less accurate. FCFs depend most strongly on the difference in equilibrium bond length between electronic states, and the equilibrium bond lengths for SbH were predicted to within 3 pm of the measured values.…”

Section: Molecular Structurementioning

confidence: 99%

Optical Pumping of TeH+: Implications for Search for Varying mp/me

Stollenwerk¹,

Kokish²,

Oliveira-Filho³

et al. 2018

Preprint

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Molecular overtone transitions provide optical frequency transitions sensitive to variation in the proton-to-electron mass ratio (μ = mp/me). However, robust molecular state preparation presents a challenge critical for achieving high precision. Here, we characterize infrared and optical-frequency broadband laser cooling schemes for TeH+, a species with multiple electronic transitions amenable to sustained laser control. Using rate equations to simulate laser cooling population dynamics, we estimate the fractional sensitivity to μ attainable using TeH+. We find that laser cooling of TeH+ can lead to significant improvements on current μ variation limits.

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Infrared and near infrared emission spectra of SbH and SbD

Cited by 12 publications

References 22 publications

Infrared and near infrared emission spectra of TeH and TeD

Infrared and near infrared emission spectra of TeH and TeD

Optical Pumping of TeH+: Implications for the Search for Varying mp/me

Optical Pumping of TeH<sup>+</sup>: Implications for Search for Varying <em>m<sub>p</sub></em>/<em>m<sub>e</sub></em>

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