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公开(公告)号：US3936772A
公开(公告)日：1976-02-03
申请号：US511966
申请日：1974-10-04
摘要： A method and means are disclosed for obtaining high pulse rate metal vapor laser transitions by vaporizing a metal halide of the desired metal. The vapor of the metal halide is transversely passed at at least sonic velocities through a discharge region where it is dissociated to provide a neutral metal atom excited to an upper laser level by electrons of sufficient energy to create resonance radiation trapping and a population inversion of the upper laser level. The flow rate is maintained to permit the excited metal atom to emit laser radiation by stimulated emission to a lower laser level in the discharge region and to remove the lower laser level atoms therefrom. Dissociation and excitation of the flowing metal atoms are repeated periodically.
摘要翻译： 公开了通过汽化所需金属的金属卤化物来获得高脉冲率金属蒸气激光转换的方法和装置。 金属卤化物的蒸气以至少声速横向通过放电区域，在该放电区域被解离，以提供由足够能量的电子激发到较高激光水平的中性金属原子以产生共振辐射捕获和 上激光水平。 保持流速以允许激发的金属原子通过受激发射在放电区域中发射到较低激光水平并且从其中去除下部激光水平原子来发射激光辐射。 周期性地重复流动的金属原子的解离和激发。
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公开(公告)号：US3934211A
公开(公告)日：1976-01-20
申请号：US505400
申请日：1974-09-11
CPC分类号： H01S3/031
摘要： The invention is directed to a method for obtaining pulsed metal vapor laser transitions. The method comprises placing a metal halide of the desired metal within an enclosure and vaporizing the metal halide to provide a metal halide vapor. The metal halide vapor is thereafter dissociated to provide ground state metal atoms of sufficient number density to create a condition for resonance trapping and, substantially simultaneously therewith, ground state metal atoms are excited to an upper laser level, while maintaining a sufficient number in the ground state to preserve said resonance radiation trapping condition, with electrons sufficiently energized to create a population inversion between the upper and lower laser level. The excited metal atom is permitted to emit laser radiation by stimulated emission to a lower laser level and the emission is resonated, preferably between a pair of externally mounted mirrors. The metal atom is permitted to relax from the lower laser level to ground state and the aforementioned steps are repeated.
摘要翻译： 本发明涉及一种用于获得脉冲金属蒸气激光转换的方法。 该方法包括将所需金属的金属卤化物放置在外壳内并蒸发金属卤化物以提供金属卤化物蒸气。 然后将金属卤化物蒸气解离以提供具有足够数量密度的基态金属原子以产生共振捕获的条件，并且基本上与此同时，将基态金属原子激发到较高的激光水平，同时在地面中保持足够的数量 状态以保持所述共振辐射捕获条件，其中电子被充分激励以在上和下激光水平之间产生总体反转。 激发的金属原子被允许通过受激发射激发辐射到更低的激光水平，并且发射被谐振，优选在一对外部安装的反射镜之间。 允许金属原子从较低的激光水平放松至基态，并重复上述步骤。
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