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    • 8. 发明授权
    • Halogen mass flow rate detection system
    • 卤素质量流量检测系统
    • US4421408A
    • 1983-12-20
    • US237021
    • 1981-02-23
    • Steven J. DavisLeonard Hanko
    • Steven J. DavisLeonard Hanko
    • G01N21/85G01N1/22
    • G01N21/85
    • A halogen mass flow rate detection system having an absorption cell through which a halogen entrained inert gas can be passed. An electromagnetic beam of preselected wavelength in the bound-continuum absorption region is passed through the cell while the halogen entrained inert gas is passed therethrough and also while only an inert gas is passed through the cell. By measuring the intensity of the beam passing through the absorption cell, molecular absorption can be utilized for determining the concentration and, therefore, the mass flow rate of the halogen passing through the absorption cell. By incorporating the halogen mass flow rate detection system in an iodine/oxygen chemical laser, for example, the mass flow rate of the iodine into the resonant cavity of the laser can be simply, accurately and reliably ascertained.
    • 一种卤素质量流量检测系统,具有可以通过卤素夹带的惰性气体的吸收单元。 在连续吸收区域中的预选波长的电磁波通过电池,同时卤素夹带的惰性气体通过,同时只有惰性气体通过电池。 通过测量通过吸收单元的光束的强度,可以利用分子吸收来确定通过吸收单元的卤素的浓度以及因此的质量流率。 通过将卤素质量流量检测系统并入碘/氧化学激光器中,例如可以简单,准确,可靠地确定碘进入激光器的谐振腔的质量流量。
    • 9. 发明授权
    • Optically pumped atomic iodine laser
    • 光泵浦原子碘激光
    • US4318060A
    • 1982-03-02
    • US35136
    • 1979-05-01
    • Steven J. Davis
    • Steven J. Davis
    • H01S3/095H01S3/22H01S3/00
    • H01S3/2215H01S3/09505
    • An optically pumped atomic iodine laser with a lasing cavity formed by a sealed cell containing iodine vapor as the lasing medium. A tunable dye laser having an output wavelength in the 493-501 nm range is oriented so that its beam is directed into the lasing cavity. This pumps the iodine vapor and results in its dissociation into an atomic iodine medium that lases at 1.315 microns. An optical cavity is formed by two mirrors mounted around the sealed cell on the optical axis of the lasing cavity in a substantially confocal configuration. The two mirrors are more than 99.9% reflective of radiation emitted by the lasing iodine vapor, but pass more than 80% of the radiation from the dye laser. A total reflector to radiation from the dye laser is positioned outside the optical cavity to reflect radiation from the dye laser back through the lasing cavity. Mode matching lenses are mounted between the dye laser and the sealed cell to shape the dye laser beam to the approximate mode shape of the lasing cavity. The iodine laser output beam is passed through a long pass filter to remove any remaining dye laser beam. This laser is capable of indefinite use without replenishment of the lasing medium and the wavelength of its output beam is independent of the wavelength of the pumping beam from the dye laser.
    • 具有由含有碘蒸气作为激光介质的密封电池形成的激光腔的光泵浦原子碘激光器。 具有在493-501nm范围内的输出波长的可调染料激光器被定向成使得其光束被引导到激光腔中。 这泵送碘蒸气并导致其解离成为1.315微米的原子碘介质。 光腔由基本上共焦配置在激光腔的光轴上围绕密封单元安装的两个反射镜形成。 这两个反射镜反射超过99.9%,反映了由激光碘蒸气发射的辐射,但是通过了来自染料激光器的超过80%的辐射。 来自染料激光器的辐射的全反射器位于光腔外部,以将来自染料激光器的辐射反射回穿过激光腔。 模式匹配透镜安装在染料激光器和密封电池之间,以将染料激光束成形为激光腔的近似模式形状。 碘激光输出光束通过长通滤光片以去除任何剩余的染料激光束。 该激光器能够在不补充激光介质的情况下无限期地使用,并且其输出光束的波长独立于来自染料激光器的泵浦光束的波长。