title: Efficient second-harmonic generation of a broadband radiation by control of the temperature distribution along a nonlinear crystal.
abstract: We demonstrate an efficient technique for the second harmonic generation (SHG) of the broadband radiation based on the temperature gradient along a nonlinear crystal. The characteristics of Type I non-critical phase-matched SHG of broadband radiation in the LiB(3)O(5) (LBO) crystal with the temperature gradient imposed along the crystal were investigated both numerically and experimentally. The frequency doubling efficiency of the broadband pulsed fiber laser radiation as high as 68% has been demonstrated.
authors.affiliation: Department of Laser Technology, Center for Physical Sciences & Technology, Savanoriu Ave. 231, Vilnius, Lithuania. regelskis@ar.fi.lt
authors.forename: K
authors.initials: K
authors.lastname: Regelskis
authors.forename: J
authors.initials: J
authors.lastname: Želudevičius
authors.forename: N
authors.initials: N
authors.lastname: Gavrilin
authors.forename: G
authors.initials: G
authors.lastname: Račiukaitis
mesh_terms: D003460:Crystallization; D004735:Energy Transfer; D008027:Light; D018020:Lithium Compounds / Q000737:chemistry*; D017711:Nonlinear Dynamics; D055096:Optical Devices; D012542:Scattering, Radiation; D013696:Temperature
chemical_list: D018020:Lithium Compounds