Ultra-Precision Machining and Surface Evaluation of Optical Flats for High Power Ultra-Violet Lasers

高功率紫外激光器光学平面的超精密加工和表面评估

基本信息

  • 批准号:
    02650104
  • 负责人:
  • 金额:
    $ 1.28万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
  • 财政年份:
    1990
  • 资助国家:
    日本
  • 起止时间:
    1990 至 无数据
  • 项目状态:
    已结题

项目摘要

The final objects of this study is to develop the flat optical components having high accuracy, high transparency or reflectivity, higher laser damage threshold and higher responsibility for high power lasers of ultra-violet in wavelength, in order to help the development of high power examiner lasers and laser fusion program. This year's study was summarized as follows :1) Clean rooms keeping both constant temperature and humidity have been established for the ultra-precision machining and measuring. Anti-vibration foundations also have set up for ultra-precision instruments.2) A scanning tunneling microscope (STM) has been founded by a photographic instruments for a Nomarski interference microscope in order to show the correct place for measuring the micro-surface structure by STM. The STM has been calibrated by measuring the grating having 1000 grooves per mm. It has succeeded to measure Mn-Zn ferrite surfaces by STM without metal coating, though the measured material is not conductive.3) Various optical glasses have been ground into very smooth surfaces better than optically-polished ones by a ultra-precision surface grinder having a glass-ceramic spindle of zero-thermal expansion. Laser damage thresholds of ground laser glass surfaces have been measured. It is cleared that the damage threshold depends upon the surface roughness and contamination of ground surfaces. Ground surfaces show the higher damage thresholds rather than optically-polished surfaces.4) The float-polished laser glass shows the highest laser damage threshold of 30J/cm^2, which is double number rather than that of optically-polished surfaces.
本研究的最终目标是开发高精度、高透明或反射率、高激光损伤阈值和高责任的平面光学元件,用于波长为紫外线的高功率激光器,以帮助高功率检查激光器和激光聚变项目的发展。今年的研究总结如下:1)建立了恒温恒湿的洁净室,用于超精密加工和测量。还为超精密仪器设置了防震基础。2)利用诺玛斯基干涉显微镜的照相设备,建立了扫描隧道显微镜(STM),以显示扫描隧道显微镜测量微观表面结构的正确位置。通过测量每毫米有1000个凹槽的光栅,对STM进行了校准。通过STM成功地测量了没有金属涂层的Mn-Zn铁氧体表面,尽管被测材料不导电。3)使用具有零热膨胀玻璃陶瓷主轴的超精密表面磨床,可以将各种光学玻璃磨成比光学抛光玻璃更光滑的表面。测量了激光玻璃表面的激光损伤阈值。显然,损伤阈值取决于表面粗糙度和地面污染程度。与光学抛光表面相比,地面表面显示出更高的损伤阈值。4)浮法抛光激光玻璃的最高激光损伤阈值为30J/cm^2,是光抛光表面的两倍。

项目成果

期刊论文数量(22)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
"光学ガラスの超精密研削" 光学. 20. 78-79 (1991)
“光学玻璃的超精密磨削”光学20。78-79(1991)
  • DOI:
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    0
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  • 通讯作者:
I. YAMADA: "Preparation of Atomically Flat Gold Films by Ionized Cluster Beam" Abstracts 8th Int. Conf. on Implantation Technology. 1-16 (1990)
I. YAMADA:“通过电离簇束制备原子平坦金薄膜”摘要第 8 期 Int。
  • DOI:
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    0
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  • 通讯作者:
難波 義治: "21世紀への展望" 中部大学, 336 (1990)
难波芳晴:《21世纪的展望》中部大学,336(1990)
  • DOI:
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    0
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難波 義治: "アルミニウム合金の超精密非球面切削" 1991年度精密工学会春季大会学術講演会講演論文集. (1991)
Yoshiharu Namba:“铝合金的超精密非球面切削”日本精密工程学会 1991 年春季会议论文集(1991 年)。
  • DOI:
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  • 影响因子:
    0
  • 作者:
  • 通讯作者:
R.S.CUTLER: "Engineering in Japan" Technology Transfer Society, (1991)
R.S.CUTLER:“日本工程”技术转让协会,(1991 年)
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    0
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NAMBA Yoshiharu其他文献

NAMBA Yoshiharu的其他文献

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{{ truncateString('NAMBA Yoshiharu', 18)}}的其他基金

Development of Multi-Layered Aspheric Mirrors for InternationalX-Ray Observatory
国际X射线天文台多层非球面镜的研制
  • 批准号:
    22360063
  • 财政年份:
    2010
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of replicated aspherical mirrors for next-generation hard X-ray telescopes and evaluation of optical properties
下一代硬X射线望远镜复制非球面镜的开发及光学特性评估
  • 批准号:
    18360073
  • 财政年份:
    2006
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of X-Ray Multilayer Aspheric Mirrors by Replication Technology and Nano-Structure Analysis
利用复制技术和纳米结构分析开发X射线多层非球面镜
  • 批准号:
    15360075
  • 财政年份:
    2003
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Ultra-Precision Machining of Replicated Aspherical Optical Components
复制非球面光学元件的超精密加工
  • 批准号:
    12450063
  • 财政年份:
    2000
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Ultra-Precision Machining and Surface Evaluation of Optical Flats for High Power Ultra-Violet Lasers
高功率紫外激光器光学平面的超精密加工和表面评估
  • 批准号:
    01550106
  • 财政年份:
    1989
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
Development of New Ultra-Precision Machining Using Solid Lasers in Ultraviolet
使用紫外固体激光器开发新型超精密加工
  • 批准号:
    01850034
  • 财政年份:
    1989
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Developmental Scientific Research
Ultra-Precision Vertical Spindle Grinder for Ceramics
超精密陶瓷立式主轴磨床
  • 批准号:
    59850028
  • 财政年份:
    1984
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Developmental Scientific Research

相似海外基金

Development of High-Efficiency Finishing Machine by Magnetic Float Polishing
磁力浮法抛光高效光整机的研制
  • 批准号:
    60850022
  • 财政年份:
    1985
  • 资助金额:
    $ 1.28万
  • 项目类别:
    Grant-in-Aid for Developmental Scientific Research
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