Zobrazeno 1 - 10
of 14
pro vyhledávání: '"R J Freiberg"'
Publikováno v:
Applied optics. 16(5)
A novel class of unstable resonators is described in which the mode spatial distribution is altered within the resonator by a prism or axicon. In the particular configuration studied in this work, the resonator beam is separated into two halves by an
Publikováno v:
Applied optics. 12(6)
The properties of traveling-wave unstable ring resonators are discussed with respect to conventional standing-wave unstable resonator geometries. As a consequence of the inherent geometric magnification, the mode diameters associated with clockwise a
Publikováno v:
Optics letters. 2(3)
The feasibility of compensating for intracavity phasefront distortions using a multidither zonal COAT system has been demonstrated insided an unstable resonator cavity using a CO2 electric discharge laser. Experimental data are presented that verify
Autor:
L. A. Weaver, R. J. Freiberg
Publikováno v:
Journal of Applied Physics. 37:1528-1535
Radiative cascade patterns in noble gases are described by an idealized theoretical model. Assuming a pure j‐l coupling of angular momenta, branching ratios for spontaneous decays are computed using the Coulomb approximation of Bates and Damgaard.
Autor:
R. J. Freiberg, L. A. Weaver
Publikováno v:
Journal of Applied Physics. 39:4283-4286
Extension of conventional microwave cavity diagnostic methods to measure very low electron densities in afterglow plasmas
Publikováno v:
Proceedings of the IEEE. 59:659-667
A technique of magnetically stabilizing the position of the plasma column and the resulting inversion region in lower pressure flowing molecular lasers is described. A transverse magnetic field, mutually perpendicular to the discharge axial electric
Autor:
L. A. Weaver, R. J. Freiberg
Publikováno v:
Journal of Applied Physics. 38:250-262
Spatially resolved electron density measurements are reported for dc‐excited xenon laser discharges over a pressure range of 12.5 to 25.5 mTorr. Due to electrophoretic effects within the closed capillary tube, anode‐directed gradients in electron
Autor:
L. A. Weaver, R. J. Freiberg
Publikováno v:
Journal of Applied Physics. 39:1550-1556
The effects of a time‐varying complex dielectric constant upon the resonant characteristics of a cylindrical microwave cavity are presented. The cavity resonance equations are developed to consider the influence of small periodic changes in resonan
Publikováno v:
Applied Physics Letters. 16:321-323
A new concept of stabilizing an electrical CO2 laser discharge against a transverse gas flow is described. A cross magnetic field, mutually perpendicular to the discharge axial electric field and the gas flow velocity, is employed to maintain the ele
Publikováno v:
Applied Physics Letters. 17:514-516
cw laser action has been achieved in both HF and DF by employing entirely premixed gases in a cross‐field discharge geometry. An electrical discharge, established in the He, SF6, and H2 or D2 mixture upstream and parallel to the optical axis, disso