基于NIRSpec/JSWT的积分场光谱学图像分割器
An original image slicer designed for Integral Field Spectroscopy with NIRSpec/JSWT
摘要：
积分场光谱学（IFS）为扩展的二维场的每个空间样本同时提供光谱。它由一个积分场单元（IFU）组成，它沿着摄谱仪的入口狭缝对初始场进行切片和重新排列。本文提出了一种基于先进的图像切片器概念的IFU的原创设计。为了减少光学像差，光瞳镜和狭缝镜被布置成扇形配置，这意味着每个元件上的入射光束和反射光束之间的角度被最小化。扇形像分割器在波前误差方面比经典像分割器提高了2倍，而且它在视场中的微分像差可以忽略不计。作为合作伙伴，我们将在NIRSPEC/IFU招标中展示其提案所使用的LAM设计。
英文摘要：
Integral Field Spectroscopy (IFS) provides a spectrum simultaneously for each spatial sample of an extended, two-dimensional field. It consists of an Integral Field Unit (IFU) which slices and re-arranges the initial field along the entrance slit of a spectrograph. This article presents an original design of IFU based on the advanced image slicer concept. To reduce optical aberrations, pupil and slit mirrors are disposed in a fan-shaped configuration that means that angles between incident and reflected beams on each elements are minimized. The fan-shaped image slicer improves image quality in terms of wavefront error by a factor 2 comparing with classical image slicer and, furthermore it guaranties a negligible level of differential aberration in the field. As an exemple, we are presenting the design LAM used for its proposal at the NIRSPEC/IFU invitation of tender.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
