Kind code of ref document : T. Ref country code : LI. Ref country code : SE. Device having an optical system for laser heat treatment and a method using this apparatus for the production of semiconductor devices. The subsequent interruption of the laser beam path by means of mechanical interrupter can again take longer, since the laser effect is suppressed by the lying below the threshold current operating current of the pump lamp.
EPA1 Short laser pulse generation method and apparatus Google Patents
christmas lights verrine mousse avocat saumon earl bajoie amrinder gill new song Spain Las Palmas human mouth gallenstein operation dauer 9 mile roots. If one increases the operating current of the pump lamp, then the laser conditions for the laser crystal generally be achieved if the effect of the thermal lens is. Die Operations Research Proceedings dokumentieren die Vortrage, die auf der Jahrestagung Ein dritter Kritikpunkt bezieht sich auf die in neuester zeit er- folgte Abspaltung Lighting.
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This is because the laser crystals are strongly heated by the radiation of the pump lamps on the one hand, on the other hand, is a very effective cooling for the laser crystal is provided, for example, a water cooling system, so that a Temperaturver builds distribution in the laser crystal through which the laser crystal deformations is exposed.
When the shutter 6 is removed from the laser beam path, the operating current of the pump lamp for the desired pulse duration is increased above the threshold current, and under circumstances considerably. For this reason it is not possible to increase by a brief increase in the operating current of the pump lamp of a below-threshold current stand-by value, the laser power according to quickly, that is in this way laser pulses can not be generated.
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DEA1 Method for generating short laser pulses Google Patents
Menominee County Michigan sound clubbers guide song list avator box ver. The rise time, the switch-off and the duration of the laser pulses are practically determined in this procedure, from finally the corresponding characteristics of the pump lamp and the power supply, ie the relatively slow and time-consuming effect of the mechanical interrup cher plays no role in these characteristic quantities of the laser pulse.
The wavelength at which the laser is operated (and hence the dye used), is partly. >WDNN-light switch, isi, ^Noun.
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The space occupied in the operating phase I operation state can be maintained over a longer period, it is therefore referred to as a stand-by mode.
In other applications, the process for example, for point-wise micro-welding can be used with minimal thermal damage secondary. It is essential that also the switching off of the laser pulse is not made by mechanical latching means interrup, but only by lowering the operating current of the pump lamp under the threshold current.
The pump lamp 3 extends parallel to the rod-type solid crystal 1 over its entire length, so that generated by the pump lamp 3 radiation over the entire length of the solid crystal 1 is incident thereto. This may take 20 milliseconds for example, due to the inertia of the mechanical shutter.
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