ISSN:
1432-0630
Keywords:
42.65
;
32
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract By means of a N2-laser pumped dye-laser (P L ≈20kW, Δv L 〈 10 GHZ) different two-photon resonant four-wave coupling processes in Ba vapour (n Ba≈1016 cm−3) using the Ba states 6s8s 1 S o and 7s5d 1 D 2 were investigated. Coherent line radiation with conversion rates up to 10−3 was generated within the range of λ=190–200 nm by sumfrequency mixingv UV=2v 1+v 2 of 3 laser photons and within the range of λ=250–380 nm by couplingv UV=2v 1±v IR of 2 laser photons with one photonv IR stimulated emitted in laser-induced Ba transitions. For the second coupling type the various nonlinear processes contributing to the formation of the coupling components are discussed. The power of the UV-component as function of inensity and resonance detuning of the laser as well as on the phase-mismatch was calculated on the basis of the small signal theory and compared to the experimental data.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00914920
Permalink
