The invention discloses a device for generating impulse through Bessel laser beam reflection type ablation. The device comprises a target material, a laser light source, an aspherical lens, a first conical lens, a second conical lens and a parabolic reflector, wherein the laser light source, the aspherical lens, the first conical lens, the second conical lens and the parabolic reflector share the same optical axis. The laser light source emits a laser beam, the laser beam enters the first conical lens after being collimated by the aspherical lens, the conical surface of the first conical lens and the conical surface of the second conical lens are oppositely arranged, the first conical lens converts collimated laser into a Bessel beam, and the second conical lens collimates and amplifies the Bessel beam into an annular Bessel beam; the parabolic reflector focuses the annular Bessel beam to a target material, and the surface of the target material is jetted out of an ablation plume under the action of laser ablation to generate impulse. According to the invention, the pollution problem of plume injection to an optical device can be effectively avoided, and the reliability of the impulse generation process is improved.
本发明公开了一种贝塞尔激光光束反射式烧蚀产生冲量的装置,所述装置包括:靶材,以及共光轴配置的激光光源、非球面透镜、第一锥透镜、第二锥透镜、抛物型反射镜;激光光源发射激光光束,所述激光光束通过非球面透镜准直后进入第一锥透镜,所述第一锥透镜与第二锥透镜的锥形面相对设置,第一锥透镜将准直激光转换为贝塞尔光束,第二锥透镜将贝塞尔光束准直放大为环形贝塞尔光束;抛物型反射镜将环形贝塞尔光束聚焦至靶材,靶材表面在激光烧蚀作用下喷射出烧蚀羽流产生冲量。应用本发明可以有效避免羽流喷射对光学器件带来的污染问题,提高了产生冲量过程的可靠性。
Bessel laser beam reflection type ablation impulse generation device
一种贝塞尔激光光束反射式烧蚀产生冲量的装置
18.04.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | B64G Raumfahrt , COSMONAUTICS |
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