Rotationally resolved UV spectroscopy of room temperature benzene by sub-Doppler degenerate four-wave mixing

Helm, R. M.; Neuhauser, R. G.; Neusser, H. J.

doi:10.1016/0009-2614(95)01421-7

Cited by 14 publications

(8 citation statements)

References 25 publications

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“…For the electronic ground state S 0 and the first electronically excited state of benzene high resolution spectroscopy has led to very accurate rotational constants [46][47][48][49][50]65 and transition frequencies for S 1 ,6 1 ←S 0 ,0 0 transition. These values are listed in Table I.…”

Section: ͑1͒mentioning

confidence: 99%

High n Rydberg spectroscopy of benzene: Dynamics, ionization energy and rotational constants of the cation

Neuhauser¹,

Siglow²,

Neusser³

1997

The Journal of Chemical Physics

114

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Articles you may be interested inPulsed-field ionization spectroscopy of high Rydberg states ( n = 50 -200 ) of bis( η 6 -benzene)chromium Adiabatic and vertical ionization energies of 1,4-diazabicyclo[2,2,2]-octane measured by zero electron kinetic energy spectroscopy and Rydberg extrapolation Structure and vibrations of dihydroxybenzene cations and ionization potentials of dihydroxybenzenes studied by mass analyzed threshold ionization and infrared photoinduced Rydberg ionization spectroscopy as well as ab initio theoryResolved high Rydberg spectroscopy of benzenerare gas van der Waals clusters: Enhancement of spin-orbit coupling in the radical cation by an external heavy atom

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Section: ͑1͒mentioning

confidence: 99%

High n Rydberg spectroscopy of benzene: Dynamics, ionization energy and rotational constants of the cation

Neuhauser¹,

Siglow²,

Neusser³

1997

The Journal of Chemical Physics

114

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“…Hence information thereof can only be obtained indirectly, e.g., by excitation of vibration modes. The work of Pliva and Pine (13) documents a very careful analysis of both the vibronic ground state and the degenerate 12 fundamental band. A difference-frequency laser spectrometer was used to measure rotational and centrifugal distortion constants in both states, and the 12 band analysis included Coriolis coupling up to the third order as well as second-order l-type resonance.…”

Section: Introductionmentioning

confidence: 99%

“…Finally, degenerate four-wave mixing was applied to the 6 0 1 1 0 1 band by Helm, Neuhauser, and Neusser (12). The spectrum was measured at room temperature, and the more pronounced effect of centrifugal distortion under those conditions was taken into account by a corresponding extension of the upper energy formula.…”

Section: Introductionmentioning

confidence: 99%

High-Resolution UV Laser Spectroscopy of Jet-Cooled Benzene Molecules: Complete Rotational Analysis of theS1←S0610(l= ±1) Band

Okruss¹,

Müller²,

Hese³

1999

Journal of Molecular Spectroscopy

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“…1,2 Both techniques have been used with great success in probing absorptions of dissociative or transient species and decay dynamics of excited molecular states. [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] Being absorption based coherent nonlinear processes, DFWM and TC-LIG have numerous advantages over other spectroscopic techniques. For example, coherence in the signal beam offers theoretically background free detection for a judiciously designed optical arrangement.…”

Section: Introductionmentioning

confidence: 99%

Degenerate four wave mixing of pyridazine from a slit nozzle

Kong

1998

The Journal of Chemical Physics

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Polarization and probe delay effect on degenerate four wave mixing of pyrazine Using a pulsed supersonic slit nozzle, the nonfluorescing *←n transition of pyridazine was investigated. The degenerate four wave mixing ͑DFWM͒ spectra showed numerous vibrational bands over a 1200 cm Ϫ1 region. Most of these bands were parallel transitions with a strong Q branch and weaker but observable P and R branches. Based on our previous model ͓H. Li and W. Kong, J. Chem. Phys. 107, 3774 ͑1997͔͒, these transitions were simulated with success. The polarization dependence of the rotational branching ratios suggested that primary contributions to the DFWM signal were from large spaced gratings formed by ground state molecules. The lack of contributions from excited state gratings and small spaced gratings was attributed to the fast internal conversion process on the S 1 surface of pyridazine ͑0.3-3 ns͒, the wash-out time due to movements of the sample in a molecular beam, and the duration time of the excitation laser ͑7 ns͒. Two vibrational bands showed unexpected enhancement in the P or R branch, but for each band, one adjustment factor was sufficient to reproduce the spectra recorded under all different polarization combinations. Perturbations were observable from the rotationally resolved spectra, however in most cases, rotational progressions did not seem to be affected by the perturbation in terms of both line positions and intensities. A more detailed analysis of the supersonically cooled spectra, together with data from a room temperature gas cell and ab initio calculations, will be necessary to completely interpret the spectroscopy of pyridazine. This paper demonstrates that with the increased sensitivity achievable through a slit nozzle, DFWM is an effective technique for detailed spectroscopic studies, particularly for nonfluorescing species.

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Rotationally resolved UV spectroscopy of room temperature benzene by sub-Doppler degenerate four-wave mixing

Cited by 14 publications

References 25 publications

High n Rydberg spectroscopy of benzene: Dynamics, ionization energy and rotational constants of the cation

High n Rydberg spectroscopy of benzene: Dynamics, ionization energy and rotational constants of the cation

High-Resolution UV Laser Spectroscopy of Jet-Cooled Benzene Molecules: Complete Rotational Analysis of theS1←S0610(l= ±1) Band

Degenerate four wave mixing of pyridazine from a slit nozzle

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