title: On the possibility of measuring optical visibility by using a ruby laser.
abstract: The atmospheric attenuation of a ruby laser beam is studied. The possibility of using the laser back scattered radiation to probe optical visibility is investigated. Some experimental measurement support ing this possibility is reported.
authors.forename: M
authors.initials: M
authors.lastname: Bertolotti
authors.forename: L
authors.initials: L
authors.lastname: Muzii
authors.forename: D
authors.initials: D
authors.lastname: Sette