Development of Infrared Echelle Grating

红外阶梯光栅的研制

• 批准号: 07554048
• 负责人: MAIHARA Toshinori
• 金额: $ 2.11万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07554048/
• 关键词: grating; infrared; echelle; spectrograph; spectroscopy; グレーティング; 分光器

The purpose of this developmental work is to fabricate a metal grating by a high precision mechining procedure. The specifications of the test grating have been set so that the grating could be used in the near-infrared in very high orders, as high as 30-th or more, having extremely coarse grooves. We have actually fabricated a 50*50 mm square grating by cutting a block of aluminum alloy.We have made extensive optical and spectroscopic tests by a spectrophotometer and have compared with theoretical grating efficiency predicted by a grating simulator software, by which we have proved to possess high performance in any practical applications. The test grating developed in the present research has been incorporated into a special grating spectrometer for astronomical use, showing a satisfactory spectroscopic efficiency as well as a low scattering characteristics. In this way, the fabrication procedure of metal grating is supposed to be established at least in a reasonable size range.

本开发工作的目的是通过高精度加工工艺制造金属光栅。测试光栅的规格已经被设定为使得光栅可以在非常高阶（高达30阶或更高）的近红外中使用，具有非常粗糙的凹槽。通过切割一块铝合金材料，制作出了50 × 50 mm的正方形光栅，用分光光度计进行了大量的光学和光谱测试，并与用光栅模拟软件预测的理论光栅效率进行了比较，证明了该光栅在实际应用中具有很高的性能。研制的测试光栅已用于天文专用光栅光谱仪，具有良好的光谱效率和低散射特性。这样，金属光栅的制造过程应该至少建立在合理的尺寸范围内。

项目成果

M.Imanishi et al.: "LEWIS : A Cross-Dispersed Spectrograph for the 3 Micron Region" Proc.SPIE. (in press). (1998)

M.Imanishi 等人：“LEWIS：3 微米区域的交叉色散光谱仪”Proc.SPIE。

M.Imanishi et al.: "Spectroscopy of Mrk 231 ad NGC 4151 in the 3mum Region" Astrophysical Journal. (submitted).

M.Imanishi 等人：“3mum 区域中 Mrk 231 和 NGC 4151 的光谱”天体物理学杂志。

M.Goto: "Evaluation of a diamond-cut large-groove grating for near infrared spectroscopy" Proc.IODC. (in press). (1998)

M.Goto：“用于近红外光谱的金刚石切割大凹槽光栅的评估”Proc.IODC。

M. Goto et al.: ""Evaluation of a diamond-cut large-groove grating for near infrared spectroscopy"" Proc. IODC.(in press). (1998)

M. Goto 等人：“用于近红外光谱的金刚石切割大凹槽光栅的评估”Proc。

F.Iwamuro 他: "Near-Infrared Spectrophotometry of 4C40,36" Astrophysical Journal, Letters. 466. L67-L70 (1996)

F. Iwamuro 等人：“4C40 的近红外分光光度法，36”《天体物理学杂志》，快报 466。L67-L70 (1996)