Laser-induced fluorescence and inelastic collisions of KH molecule

Pardo, A.; Poyato, J.M.L.; Guijarro, M.S.; Fernández-Alonso, J.I.

doi:10.1016/0022-2852(83)90265-5

Cited by 14 publications

(5 citation statements)

References 7 publications

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“…Other inelastic collision induced vibrational-rotational , the very weak vibrational satellite band VS͑8,0͒ with lines corresponding to jumps with ⌬JЈϭϪ2 to ϩ6 is observed ͓lines P(5 up to 13) and R(3 up to 11)]. Generally, the vibrational satellite lines are weaker than the rotational satellite lines ͑the cross sections are smaller͒.…”

Section: Spectroscopic Assignmentmentioning

confidence: 97%

“…[6][7][8][9][10][11][12][13] A bibliography review of the most significant experimental measurements and theoretical calculations on KH is given by Stwalley et al 14 More recently, Odashima et al 15 have reported the first observation of pure rotational transitions in KH. Liu and Lin 16 have studied the rotational distribution of KH(vЉϭ0 Ϫ3) produced in the reaction of K(5 2 P, 6 2 P and 7 2 P) with H 2 by using a pump-probe technique.…”

Section: Introductionmentioning

confidence: 99%

“…This exciting line induces only a single transition, A 1 ⌺ ϩ (vЈϭ7, JЈϭ6)←X 1 ⌺ ϩ (vЉϭ0, JЉϭ5). 6,11,13 Along with the corresponding fluorescence series of R (5) and P (7) doublets, we have analyzed in detail rotational and vibrational satellite lines induced by collision. The radiative transition probabilities for the A 1 ⌺ ϩ ϪX 1 ⌺ ϩ electronic band between vЈр22 vibrational levels of the excited state and all the vibrational levels of the ground state vЉр23 have been calculated.…”

Section: Introductionmentioning

confidence: 99%

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Analysis and transition probabilities of the A 1Σ+→X 1Σ+ system of KH excited by the 4880 Å line of the argon ion laser

Camacho

Poyato

Pardo

et al. 1998

The Journal of Chemical Physics

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Articles you may be interested inTheoretical transition probabilities for the A ̃ Π 1 -X ̃ Σ + 1 system of AlNC and AlCN isomers based on global potential energy surfaces Erratum: "Analysis and transition probabilities of the A Σ + 1 → X Σ + 1 system of KH excited by the 4880 Å line of the argon ion laser" [J.The 4051-Å band of C 3 ( A ̃ Π u 1 − X ̃ Σ g + 1 , 000-000): Perturbed low-J lines and lifetime measurements Radiative transition probabilities, lifetimes and dipole moments for the vibrational levels of the X 1 Σ + ground state of 39 K 85 RbThe fluorescence spectrum of KH induced by the 4880 Å line of an argon ion laser has been analyzed. This work extends previous observations on potassium hydride in visible region by using this excitation line. Along with the principal fluorescence series for the A 1 ⌺ ϩ →X 1 ⌺ ϩ band system, corresponding to the excitation transition, vЈϭ7, JЈϭ6←vЉϭ0, JЉϭ5, we analyzed a very interesting satellite rotational and vibrational structure induced by collision. The radiative transition probabilities for the A 1 ⌺ ϩ →X 1 ⌺ ϩ band system of KH have been calculated by using hybrid potential energy curves for the X 1 ⌺ ϩ and A 1 ⌺ ϩ states and transition dipole moment function from the radiative lifetimes of different vibrational levels (vЈϭ5Ϫ22 in the A 1 ⌺ ϩ state͒ reported by Giroud and Nedelec. The transition probabilities and lifetimes are in good agreement with the corresponding observed measurements usually within the experimental uncertainty. Collision-induced rotational and vibrational energy transfer in the A 1 ⌺ ϩ state has been investigated. From the rotational and vibrational satellite structure of some bands, cross sections for rotational and vibrational energy transfer have been determined.

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Section: Spectroscopic Assignmentmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis and transition probabilities of the A 1Σ+→X 1Σ+ system of KH excited by the 4880 Å line of the argon ion laser

Camacho

Poyato

Pardo

et al. 1998

The Journal of Chemical Physics

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“…This induces the Going solely off ab initio MS-CASPT2 calculations [81], the v' = 0 transition was initially labeled v' = 1 and the v' = 0 was reported as unobserved [10]. Similar unobserved lower vibrational transitions were reported for KH, however reassignment was supported by vibronic spectroscopy of KD [106][107][108][109].…”

Section: Ti:sapph Laser Setup and Pulse Shapingmentioning

confidence: 78%

Rovibronic Spectroscopy of Sympathetically Cooled ⁴⁰CaH⁺

et al. 2018

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We measure the rovibronic transitions X Σ, v″ = 0, J″ → A Σ, v' = 0-3, J' of CaH and obtain rotational constants for the A Σ state. The spectrum is obtained using two-photon photodissociation of CaH cotrapped with Doppler cooled Ca. The excitation is driven by a mode-locked, frequency-doubled Ti:Sapph laser, which is then pulse shaped to narrow the spectral bandwidth. The measured values of the rotational constants are in agreement with ab initio theory.

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“…A similar issue was encountered for the isoelectronic KH neutral, where the first few vibronic lines were experimentally absent and KD spectroscopy was required in order to correctly assign the KH transitions. [21][22][23][24] Isotopic substitution changes the reduced mass but maintains the adiabatic electronic potential energy. The resulting shift in vibrational energy levels can be compared to theory to confirm peak assignments.…”

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confidence: 99%

Reassigning the CaH+ 11Σ → 21Σ vibronic transition with CaD+

Condoluci

Janardan

Calvin

et al. 2017

The Journal of Chemical Physics

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We observe vibronic transitions in CaD + between the 1 1 Σ and 2 1 Σ electronic states by resonance enhanced multiphoton photodissociation spectroscopy in a Coulomb crystal. The vibronic transitions are compared with previous measurements on CaH + . The result is a revised assignment of the CaH + vibronic levels and a disagreement with CASPT2 theoretical calculations by approximately 700 cm −1 .

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Laser-induced fluorescence and inelastic collisions of KH molecule

Cited by 14 publications

References 7 publications

Analysis and transition probabilities of the A 1Σ+→X 1Σ+ system of KH excited by the 4880 Å line of the argon ion laser

Analysis and transition probabilities of the A 1Σ+→X 1Σ+ system of KH excited by the 4880 Å line of the argon ion laser

Rovibronic Spectroscopy of Sympathetically Cooled ⁴⁰CaH⁺

Reassigning the CaH+ 11Σ → 21Σ vibronic transition with CaD+

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Laser-induced fluorescence and inelastic collisions of KH molecule

Cited by 14 publications

References 7 publications

Analysis and transition probabilities of the A 1Σ+→X 1Σ+ system of KH excited by the 4880 Å line of the argon ion laser

Analysis and transition probabilities of the A 1Σ+→X 1Σ+ system of KH excited by the 4880 Å line of the argon ion laser

Rovibronic Spectroscopy of Sympathetically Cooled 40CaH+

Reassigning the CaH+ 11Σ → 21Σ vibronic transition with CaD+

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Rovibronic Spectroscopy of Sympathetically Cooled ⁴⁰CaH⁺