Investigation of the dependence of degenerate four-wave mixing line intensities on transition dipole moment

Journal Article · Thu Oct 01 04:00:00 EDT 1992 · Journal of the Optical Society of America, Part B: Optical Physics; (United States)

DOI:https://doi.org/10.1364/JOSAB.9.001770· OSTI ID:7198646

Farrow, R L; Rakestraw, D J ^[1]; Dreier, T ^[2]

---

1. Combustion Research Facility, Sandia National Laboratories, Livermore, California 94551-0969 (United States)
2. Physikalisch Chemisches Institut, Im Neuenheimer Feld 253, 6900 Heidelberg (Germany)

We report an investigation of the dependence on transition dipole moment of isolated line intensities in degenerate four-wave mixing in the {ital A} {sup 2}{summation}{sup +} ({ital v}{prime}=0){l arrow}{ital X} {sup 2}{product} ({ital v}{double prime}=0) band for NO. For spectrally integrated intensities we found that the dependence was well described by a power law {mu}{sup {ital x}}, where {mu} is the one-photon transition dipole moment. As a result of saturation, the exponent {ital x} depends on laser intensity. The observations are in reasonable agreement with a simple two-level model (Opt. Lett. {bold 2}, 94 (1978); {bold 3}, 205 (1978)), which predicts limiting dependences of {mu}{sup 8} and {mu}{sup 3} for low and high intensities, respectively. At intermediate laser intensities the model is consistent with an observed rapid decrease in the exponent with increasing laser intensity, followed by a plateau extending to high intensities.

• OSTI ID: 7198646
• Journal Information: Journal of the Optical Society of America, Part B: Optical Physics; (United States), Journal Name: Journal of the Optical Society of America, Part B: Optical Physics; (United States) Vol. 9:10; ISSN JOBPD; ISSN 0740-3224
• Country of Publication: United States
• Language: English

Related Subjects

664200* -- Spectra of Atoms & Molecules & their Interactions with Photons-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
AMPLITUDES
CHALCOGENIDES
DOPPLER BROADENING
ELECTROMAGNETIC RADIATION
FREQUENCY MIXING
LASER RADIATION
LINE BROADENING
LINE WIDTHS
NITRIC OXIDE
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLARIZATION
RADIATIONS
TRANSITION AMPLITUDES