title: Sensitive detection of acetylene absorption in the visible by using a stabilized AlGaAs diode laser.
abstract: Overtone transitions of C(2)H(2) at ~ 789 nm are investigated by means of an AlGaAs laser operating in an external optical cavity configuration. Relative amplitude noise is of a few parts in 10(6) (ppm) and permits an absorption detection limit of 0.2 ppm/km. Self-broadening and air broadening is measured for two components of the observed band [P(11) at 12646.966 and R(5) at 12688.699 cm(-1)].
authors.forename: F S
authors.initials: FS
authors.lastname: Pavone
authors.forename: F
authors.initials: F
authors.lastname: Marin
authors.forename: M
authors.initials: M
authors.lastname: Inguscio
authors.forename: K
authors.initials: K
authors.lastname: Ernst
authors.forename: G D
authors.initials: GD
authors.lastname: Lonardo