MISI-36: Machined image slicer integral field units for the Diffraction-Limited Near-IR Spectropolarimeter
MISI-36: Machined image slicer integral field units for the Diffraction-Limited Near-IR Spectropolarimeter
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MISI-36：用于衍射限制近红外分光偏振计的加工图像切片机集成现场单元
DOI：
10.1117/12.2629979
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Suyama, Yukimasa
中科院分区：
文献类型：
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作者：
Lin, Haosheng;Sukegawa, Takashi;Bonnet, Morgan B.;Okura, Yukinobu;Nakayasu, Tomonao;Suyama, Yukimasa
随着超高精度微光学加工技术的发展，已经可以加工出30 μ m或更小的分光镜宽度的积分场单元（IFU），本文介绍了丹尼尔K. Inouye太阳望远镜（DKIST）。MISI-36具有独特的两段式图像分割器设计，由112个微分割镜组成的单片图像分割器块、抛物面准直器、由112个折叠镜组成的单片平面镜阵列和由112个球面镜组成的单片球面镜阵列组成。我们已经成功地制造了一个原型设备使用佳能公司。的金刚石切割数控系统，并进行了初步的性能评估，使用实验台式光谱仪类似的DL-NIRSP光谱仪。我们将介绍MISI-36原型的光学设计和光学性能。
With the advancements of ultra-high-precision micro-optics fabrication technologies, it is now possible to fabricate integral field units (IFUs) with slicer mirror width of 30 m or less. This paper describes a 36-um machined image slicer IFU (MISI-36) for the Diffraction-Limited near-IR Spectropolarimeter (DL-NIRSP) of the Daniel K. Inouye Solar Telescope (DKIST). MISI-36 has a unique 2-section image slicer design, and is consists of a monolithic image slicer block with 112 micro slicer mirrors, a parabolic collimator, a monolithic flat mirror array consists of 112 fold mirrors, and a monolithic spherical mirror array consists of 112 spherical mirrors. We have successfully fabricated a prototype device using Canon Inc.’s diamond-cutting CNC, and conducted a preliminary performance evaluation using an experimental bench-top spectrograph similar to the spectrograph of DL-NIRSP. We will present the optical design and optical performances of the MISI-36 prototype.