Zobrazeno 1 - 10
of 18
pro vyhledávání: '"David Korff"'
Publikováno v:
IEEE Journal of Quantum Electronics. 23:569-574
The theory of broad-band forward Raman amplification is presented. An exact solution for the pump and Stokes fields is derived in the limit of negligible population transfer, negligible linear dispersion, an arbitrary number of axial modes with mode
Autor:
Richard P. Leavitt, David Korff
Publikováno v:
The Journal of Chemical Physics. 74:2180-2188
A cutoff‐free impact theory of pressure broadening and shifting of rotation and rotation–vibration spectra in gases is derived. The theory is based on the ATC (Anderson–Tsao–Curnutte) theoretical framework and uses a linked‐cluster theorem
Publikováno v:
IEEE Journal of Quantum Electronics. 21:232-236
The Raman gain of an undepleted plane-wave multimode pump laser is calculated. The Stokes and pump fields are represented as vector states in a Hilbert space, and the Dirac bracket notation is introduced to simplify the form of the equations. It is s
Autor:
David Korff
Publikováno v:
Journal of Mathematical Physics. 5:869-877
The representations of the proper inhomogeneous Lorentz group are investigated as a function of both real and imaginary mass, in the limit as the mass approaches zero. One obtains only the physical mass‐zero representations in either limit, the inf
Publikováno v:
SPIE Proceedings.
A Hilbert Space formalism is shown to greatly simplify the problem of Raman conversion of high power multimode pump laser(s) by an injected Stokes 'seed'. The case of (a) a single pump and (b) two pumps with bisecting Stokes can be solved using this
Publikováno v:
Conference on Lasers and Electro-Optics.
Autor:
Steven M. Ebstein, David Korff
Publikováno v:
Annual Meeting Optical Society of America.
A generalization of intensity interferometry and imaging laser correlography (Hanbury Brown-Twiss effect) is described. The technique measures 〈l(x)A*(x + Δ + ϵ)A(x + Δ)〉, the correlation of the intensity at x with the field cross product at x
Publikováno v:
Conference on Lasers and Electro-Optics.
Avco has performed experiments on an e-beam-pumped XeF laser with decentered confocal unstable resonator optics. The magnification of √5, the rectangular geometry of the cavity and optics, and the placement of the decentered optical axis of the res
Autor:
David Korff, Edward T. Salesky
Publikováno v:
Laser Research and Development in the Northeast.
Recently, the Raman effect has been shown to have a profound implication for high power lasers. The implications are both beneficial and deleterious.
Publikováno v:
Wavefront Distortions in Power Optics.
An instability in the output of a high-power unstable resonator cw CO2 thiser is analyzed in terms of a perturbative effect of an acoustic wave which is induced by laser heating. This may be either a three-wave process, in which the dominant mode of