Emission Wavelength Magnetically Tunable Infrared Laser for Uranium Enrichment

1.用9R(30)9.22微米TEA&lt；CO_2&gt；激光器(11J/脉冲，1pps)泵浦的红外&lt；NH_3&gt；激光器是建造的。用上述13-14微米红外波段的四条线作为15.9微米InSb SFR(自旋反转拉曼)激光器的泵浦源。它们是AP(10，9)13.83；Micro&gt；m(20 MJ/Pulse，1 Pps)，AP(10，6)13.58；Micro&gt；m(30 MJ/Pulse，1 Pps)，AP(9，6)13.27；Micro&gt；m(50 MJ/Pulse，1 Pps)，以及AP(8，6)12.97；Micro&gt；m(100 MJ/Pulse，1 Pps)。线路。3.用上述NH_3&GT；激光器的AP(10，9)谱线作为泵浦源，在低于5T(特斯拉)的磁场下观察到了15.9&lt；m InSb SFR激光发射。在磁场为5-8T的情况下，分别以AP(10，6)，AP(9，6)和AP(8，6)线作为泵浦源，观察到了15.9&lt；m；微米区的InSb SFR激光发射。由于InSb中的磁光吸收，InSb SFR激光器的输出能量依赖于磁场。在用AP(10，9)线泵浦的15.9微米InSb SFR激光器中，避免了InSb的磁光吸收。InSb表面未见损伤。通过观察&lt；CO_2&gt；气体的红外吸收光谱，估算出上述InSb SFR激光器的发射波长分辨率小于0.25&lt；cm^(-1)&gt；。本研究项目研制的15.9微米InSb SFR激光器作为分子激光分离铀(&lt；UF_6&GT；)的红外激光器具有很好的可行性。将启动铀的MLIS研究。提高重复频率(1 pps。&lt；Forward Arrow&gt；20 Pps&lt；Forward Arrow&gt；200 pps。)输出能量(0.5MJ/PULSE；10MJ/PULSE；FORWARD ARROW&GT；0.1J/PULSE)的15.9微米InSb SFR激光器。

1. Infrared <NH_3> laser pumped with 9R(30) 9.22 <micro> m of TEA <CO_2> laser (11 J/pulse, 1 pps.) was constructed.2. Four lines from the above <NH_3> laser in the infrared region of 13-14 <micro> m were used as a pumping source of 15.9 <micro> m InSb SFR (Spin-Flip Raman) laser. They were aP(10,9) 13.83 <micro> m (20 mJ/pulse, 1 pps.), aP(10,6) 13.58 <micro> m (30 mJ/pulse, 1 pps.), aP(9,6) 13.27 <micro> m (50 mJ/pulse, 1 pps.), and aP(8,6) 12.97 <micro> m (100 mJ/pulse, 1 pps.) lines.3. By using aP(10,9) line from the above <NH_3> laser as a pumping source, 15.9 <micro> m InSb SFR laser emission was observed in the magnetic field below 5 T (Tesla).4. In the magnetic field of 5 - 8 T, were also observed the InSb SFR laser emissions of 15.9 <micro> m region, by using each aP(10,6), aP(9,6), and aP(8,6) line from the above <NH_3> laser as a pumping source.5. The output energy of the InSb SFR laser depended on the magnetic field due to the magneto-optical absorption in InSb. In the case of 15.9 <micro> m InSb SFR laser pumped with aP(10,9) line from the above <NH_3> laser, the magneto-optical absorption in InSb could be avoided. No damage was found on InSb surfaces.6. The emission wavelength resolution <DELTA> <nu> ( FWHM ) of the above InSb SFR laser were estimated to be less than 0.25 <cm^(-1)> , by observing the infrared absorption spectra of <CO_2> gas.7. The 15.9 <micro> m InSb SFR laser developed in this RESEARCH PROJECT shows an excellent feasibility as an infrared laser for MLIS (Molecular Laser Isotope Separation) of Uranium ( <UF_6> ). Studies on MLIS of Uranium will be started. Increases in repetition rate (1 pps. <Forward Arrow> 20 pps. <Forward Arrow> 200 pps.) and output energy (0.5 mJ/pulse <Forward Arrow> 10 mJ/pulse <Forward Arrow> 0.1 J/pulse) of the 15.9 <micro> m InSb SFR laser are expected.