title: Frequency-modulation-polarization spectroscopy.
abstract: We have combined frequency-modulation and polarization spectroscopy to detect anisotropic spectral features with high sensitivity. The many line shapes possible with this technique and the potential for laser noise suppression were demonstrated by using saturation holes in iodine vapor.
authors.forename: M
authors.initials: M
authors.lastname: Romagnoli
authors.forename: M D
authors.initials: MD
authors.lastname: Levenson
authors.forename: G C
authors.initials: GC
authors.lastname: Bjorklund