Pulsed frequency-modulation spectroscopy at 3302 A.
We report the first known demonstration of frequency-modulation spectroscopy outside the visible spectral region. Specifically, we report the use of second-harmonic generation on a frequency-modulated visible dye-laser beam to produce a frequency-modulated ultraviolet beam that is used to observe the Na 3S ? 4P absorption at 3302 A.
Tran
N H
NH
Kachru
R
R
Gallagher
T F
TF
Watjen
J P
JP
Bjorklund
G C
GC