title: Spectral characteristics of a binary dye-mixture laser.
abstract: We have investigated laser action in a binary mixture of dyes, Rh-6G and DCM, resulting in tunable laser emission over an extended frequency region. The two dyes absorb the same pump radiation but fluoresce over frequency ranges that are shifted with respect to each other, thereby resulting in extended tunability. Following a time-dependent analysis of a rate-equation model that describe the operation of such a laser, theoretical estimates for optimum dye concentrations and the corresponding extension of the laser tuning range have been obtained.
authors.affiliation: Laser and Plasma Technology Division, Bhabha Atomic Research Centre, Tombay, Mumbai-400085, India. ssinha@magnum.barc.ernet.in
authors.forename: Sucharita
authors.initials: S
authors.lastname: Sinha
authors.forename: Alok K
authors.initials: AK
authors.lastname: Ray
authors.forename: Soumitra
authors.initials: S
authors.lastname: Kundu
authors.lastname: Sasikumar
authors.forename: Tamal B
authors.initials: TB
authors.lastname: Pal
authors.forename: Sivagiriyal K S
authors.initials: SK
authors.lastname: Nair
authors.forename: Kamalesh
authors.initials: K
authors.lastname: Dasgupta