OSU Navigation Bar

The Ohio State University University Libraries Knowledge Bank

HIGH RESOLUTION FOURIER SPECTROSCOPY OF THE $Ar^{+}$ LASER 5145 {\AA} EXCITED $I_{2}$ FLUORESCENCE SPECTRUM

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/10410

Show full item record

Files Size Format View
1978-MF-02.jpg 161.4Kb JPEG image Thumbnail of HIGH RESOLUTION FOURIER SPECTROSCOPY OF THE $Ar^{+}$ LASER 5145 {\AA} EXCITED $I_{2}$ FLUORESCENCE SPECTRUM

Title: HIGH RESOLUTION FOURIER SPECTROSCOPY OF THE $Ar^{+}$ LASER 5145 {\AA} EXCITED $I_{2}$ FLUORESCENCE SPECTRUM
Creators: Bacis, R.; Churassy, S.; Field, R. W.; Koffend, J. Brooke; Vergès, J.
Issue Date: 1978
Abstract: This preliminary work demonstrates the feasibility of obtaining a high resolution spectrum of cw laser excited fluorescence using a Fourier spectrometer. Using 1.3W of 5145 {\AA} multimode power from an $Ar^{+}$ laser, fluorescence is excited mainly via the P(13) and R(15) (43,0) lines. Nearly all of the main fluorescence lines [P(13) , P(17), R(11), R(15)] originating from $v^{\prime} = 43$ are observed up to $v^{\prime\prime} = 85$. Their recorded full width at half maximum in the $7000-8000\;cm^{-1}$ region is $0.023\;cm^{-1}$. Rotational relaxation $(\Delta J^{\prime}=2n)$ allows observation of numerous odd-$J^{\prime\prime}$ satellite lines. The usual parameters are obtained which accurately represent the rotation-vibration levels of $I_{2} X^{1}\Sigma_{g} {^{+}}$ through $v^{\prime\prime} = 85$. The vibrational line intensities clearly show the alternation pattern predicted by the Franck-Condon factors of $Tellinghuisen.^{1}$ The agreement between measured and calculated intensities is only qualitative for high $v^{\prime\prime}$ values. This has important implications with respect to the $I_{2}$ laser gain measurements discussed in the following talk.
URI: http://hdl.handle.net/1811/10410
Other Identifiers: 1978-MF-02
Bookmark and Share