title: Measurement of the room temperture R(1) line width of forty-two rubies.
abstract: Accurate measurement of the room temperature R(1) fluorescent line width of forty-two ruby laser crystals has been made using a pressure-scanned Fabry-Perot etalon. In forty-one of these rubies the chromium content was nearly the same, and the R(1) line width for all was 5.0 +/- 0.3 A, in agreement with present theories.
authors.affiliation: Perkin-Elmer Corporation,Norwalk, Connecticut, USA.
authors.forename: R A
authors.initials: RA
authors.lastname: Benedict
authors.forename: J F
authors.initials: JF
authors.lastname: Nester
authors.forename: C M
authors.initials: CM
authors.lastname: Kellington