Zobrazeno 1 - 10
of 292
pro vyhledávání: '"W.J. Witteman"'
Autor:
W.J. Witteman
The CO2-laser technology may be considered the most advanced in the laser field. Research has been stimulated strongly because of its high potential for many scientific and industrial applications. This book is primarily devoted to the main, more est
Publikováno v:
Journal of Russian Laser Research. 22:324-331
A new set of asymmetric modes was recently revealed in a Xe slab laser with pronounced lens effects originating from gas heating in the discharge. The appearance of these modes is a threshold effect. Their domain of existence in the Xe laser is discu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72e948cea6b368991828339718996c5b
https://doi.org/10.1023/a:1017948119775
https://doi.org/10.1023/a:1017948119775
Kinetic modelling of a discharge-pumped ArF excimer laser and the effects of discharge filamentation
Publikováno v:
Applied physics B: Lasers and optics, 72, 823-833. Springer
Results of kinetic modelling of an X-ray preionised, discharge-pumped ArF excimer laser, operating with a spiker-sustainer circuit are presented. The parallel-resistor model includes the complete ArF laser kinetics and calculations of the Boltzmann e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf3aa86804b1e825ef024caae946c2df
https://doi.org/10.1007/s003400100538
https://doi.org/10.1007/s003400100538
Publikováno v:
Applied physics B: Lasers and optics, 70(2), 231-235. Springer
An X-ray preionised ArF and KrF excimer laser has been studied with three different spiker-sustainer excitation circuits. We observed large differences in the laser performance, when the preionisation delay timing was varied on a nanosecond timescale
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::435b99c825e617d3ca923d05961f3891
https://doi.org/10.1007/s003409900119
https://doi.org/10.1007/s003409900119
Publikováno v:
Nuclear instruments and methods in physics research. Section B : Beam interactions with materials and atoms, 1999(A 427), 68-73. Elsevier
The design of a compact system for the transport of a 6 MeV electron beam from a photo-cathode linac to a race-track-microtron is described. The high quality of the electron beam has to be maintained during transport. The geometrical limitations make
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03201c85ec41e112ed2d193838a9efae
https://doi.org/10.1016/s0168-9002(98)01520-4
https://doi.org/10.1016/s0168-9002(98)01520-4
Publikováno v:
Nuclear instruments & methods in physics research. Section A : Accelerators, spectrometers, detectors and associated equipment, 1999(429), 17-20. Elsevier
A Cherenkov FEL with an annular electron beam has been succesfully operated. During the first lasing experiments output was found for accelerating voltages ranging from 85 to 150 kV and currents from 1 to 10 A. At a particular accelerating voltage la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9f93479bb8e31208cd64ee19786918de
https://doi.org/10.1016/s0168-9002(99)00057-1
https://doi.org/10.1016/s0168-9002(99)00057-1
Autor:
N. N. Elkin, Anatoly P. Napartovich, W.J. Witteman, P.J.M. Pters, V.N. Troshchieva, Igor' V Kochetov, F.J. Blok, Yu.B. Udalov, S.A. Starostin
Publikováno v:
IEEE journal of quantum electronics, 35(12), 1786-1798. IEEE
Transverse optical modes for an RF excited Ar-He-Xe laser are studied both experimentally and theoretically. A diffraction model for a waveguide with a nonsaturable gain and refractive index gradients placed between two plane mirrors is formulated. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f11b1e4148e46b525a67336b233dfe46
https://doi.org/10.1109/3.806585
https://doi.org/10.1109/3.806585
Autor:
Sergei N Tskhai, W.J. Witteman, Igor' V Kochetov, Vladimir N Ochkin, B I Ilyukhin, Anatoly P. Napartovich
Publikováno v:
Quantum Electronics. 28:497-501
Formation of specific structures of the radiation field of an rf-pumped cw Ar — He — Xe laser was observed experimentally. A model of the active medium was developed taking account of the spatial inhomogeneity of the gas-discharge parameters. It
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10a311b48c13b476bfe0dbbba4e6d236
https://doi.org/10.1070/qe1998v028n06abeh001257
https://doi.org/10.1070/qe1998v028n06abeh001257
Publikováno v:
Optics Communications. 151:65-68
A new method to determine the M 2 number in a single shot measurement is proposed and examples are given. The M 2 is calculated using a Fourier transform of the spatial phase- and amplitude-distribution in the near field. The measurements are done wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6f8ddac3ca78c4197423c3d51c2d6a3
https://doi.org/10.1016/s0030-4018(98)00068-6
https://doi.org/10.1016/s0030-4018(98)00068-6
Publikováno v:
Nuclear instruments & methods in physics research. Section A : Accelerators, spectrometers, detectors and associated equipment, 407(1-3), 413-418. Elsevier
The spectral distribution of the Twente Raman FEL has been studied as a function of the interaction length for an amplifier configuration. A stable spectrum was found for the minimum required interaction length necessary for the RF signal to be detec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e6534a893416c0b2743cd7ad676dcf3
https://doi.org/10.1016/s0168-9002(98)00060-6
https://doi.org/10.1016/s0168-9002(98)00060-6