Emission Wavelength Magnetically Tunable Infrared Laser for Uranium Enrichment

用于铀浓缩的发射波长磁可调谐红外激光器

• 批准号: 60420030
• 负责人: MIYAZAKI Kazuhiko
• 金额: $ 26.18万
• 依托单位: Tottori University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (A)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-60420030/
• 关键词: Laser For Uranium Enrichment; Infrared Laser; 15.9 <micro> m Region; Wavelength Tunable; Magnetically Tunable; InSb SFR Laser; Infrared <NH_3> Laser; TEA【CO_2】レーザ; N【H_3】レーザ励起; SFRレーザ; ウラン濃縮用

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.

1. 用9R（30）泵浦9.22 <微> m TEA <CO_2>激光器（11 J/脉冲，1 pps），构建了红外<NH_3>激光器。利用上述<NH_3>激光在13 ~ 14 <micro> m红外区的四条谱线作为15.9 <micro> m InSb SFR （Spin-Flip Raman）激光器的抽运源。aP(10,9) 13.83 <micro> m (20 mJ/脉冲，1 pps), aP(10,6) 13.58 <micro> m (30 mJ/脉冲，1 pps), aP(9,6) 13.27 <micro> m (50 mJ/脉冲，1 pps), aP(8,6) 12.97 <micro b> m （100 mJ/脉冲，1 pps）。利用上述<NH_3>激光器的aP（10,9）谱线作为抽运源，在低于5 T（特斯拉）的磁场下观测到15.9 <micro> m InSb SFR激光发射。在5 ~ 8 T的磁场中，分别利用aP（10,6）、aP（9,6）和aP（8,6）线作为抽运源，还观察到InSb SFR激光器在15.9 <micro> m区域的发射。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15.9 <micro> m InSb的SFR激光器中，从上述<NH_3>激光器抽运aP（10,9）线，可以避免InSb中的磁光吸收。在InSb表面未发现损坏。通过观察<CO_2>气体的红外吸收光谱，估计上述InSb SFR激光器的发射波长分辨率<DELTA> <nu> (FWHM)小于0.25 <cm^(-1)>。本研究项目研制的15.9 <微> m InSb SFR激光器作为红外激光器用于铀（<UF_6>）的分子激光同位素分离（MLIS）具有良好的可行性。开展铀的MLIS研究。增加重复频率（1秒）。<前进箭> 20秒。预计15.9 <micro> m InSb SFR激光器的输出能量（0.5 mJ/脉冲<Forward Arrow> 10 mJ/脉冲<Forward Arrow> 0.1 J/脉冲）。

项目成果

MIYAZAKI, Kazuhiko: "Development of Infrared Lasers for Molecular Laser Uranium Enrichment" The Review of Laser Engineering. 15. (1987)

宫崎和彦：“用于分子激光铀浓缩的红外激光器的发展”激光工程评论。

赤外線技術研究会資料. 60-7. (1985)

红外技术研究组材料。60-7。

MIYAZAKI, Kazuhiko: "Magnetically Tunable 15.9 <micro> m InSb Spin-Flip Raman Laser Pumped with 13 - 14 <micro> m <NH_3> Laser" Optics Communications. 63. (1987)

MIYAZAKI、Kazuhiko：“用 13 - 14 <micro> m <NH_3> 激光泵浦的磁可调谐 15.9 <micro> m InSb 自旋翻转拉曼激光器”光学通信。

電気四学会中国支部連合大会講演論文集. 36-061206. (1985)

日本四位电气工程师中国分会论文集36-061206（1985）。

宮崎和彦: 第10回レーザ・レーダ(ライダー)シンポジウム論文集. 10. 42-43 (1985)

宫崎和彦：第十届激光/雷达（激光雷达）研讨会论文集。10. 42-43 (1985)。