التفاصيل البيبلوغرافية
العنوان: |
Laser induced fluorescence measurements of microwave stimulated OH molecules from H2O photodissociation. |
المؤلفون: |
Wurps, H., Spiecker, H., ter Meulen, J. J., Andresen, P. |
المصدر: |
Journal of Chemical Physics; 8/15/1996, Vol. 105 Issue 7, p2654, 6p |
مصطلحات موضوعية: |
FLUORESCENCE, PHOTODISSOCIATION, ASTRONOMICAL masers |
مستخلص: |
Laser induced fluorescence of microwave stimulated OH molecules from H[SUP2]O photodissociation is investigated as a first step in a series of laboratory experiments to understand features of astronomical OH masers. The inversion between the Π[SUB3/2], J = 7/2 Λ-doublet states of OH generated via photodissociation of cold H[SUP2]O at 157 nm is shown to be 1.8:1. Within a microwave, Fabry--Perot cavity tuned to the resonance of one of the main hyperfine transitions in this Λ doublet it is possible to stimulate all inverted OH molecules. The linewidth of the two main microwave transitions is measured as a function of the microwave power and interaction time. The results show that Doppler broadening is negligible at short interaction times of the molecules with the microwave field. [ABSTRACT FROM AUTHOR] |
|
Copyright of Journal of Chemical Physics is the property of American Institute of Physics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
قاعدة البيانات: |
Complementary Index |