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首页> 外文会议>Conference on Novel Optical Systems, Methods, and Applications >New spectro-imager designs for MOEMS-based instruments in Earth and Universe observation
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New spectro-imager designs for MOEMS-based instruments in Earth and Universe observation

机译：地球和宇宙观察中的基于MoEMS的仪器的新光谱 - 成像器设计

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MOEMS-based instruments could be the next stepping stone for ground-based and space telescopes, allowing for multi-object spectroscopy in a 2D field of view. These programmable slit masks will optimize the SNR and generate compact and efficient spectro-imagers for Universe and Earth observation. BATMAN, a MOEMS-based spectro-imager for Universe observation to be installed at the TNG at the Canada Islands, uses a Digital-Micromirror-Device to split the light between its imaging and spectrograph arms. ROBIN, the BATMAN demonstrator, confirmed its feasibility and image quality over the FOV. A new design for a DMD-based high-resolution spectro-imager for Universe observation is presented: a solution using only one detector for all the wavelength range is obtained. We are dividing the 370 - 950 nm wavelength range into four channels and a spectral resolution of 15 000 is achieved for every one of them, all within an image quality below two detector pixels. Moreover, the 3-mirror design of the instrument implies a high throughput in comparison to catadioptric systems which are more commonly used for this science case. A new MOEMS-based spectro-imager for Earth observation has been designed, with constraints of wide 2D field of view (3°×1°), image quality (＜2 pixels = 11 μm) and compacity. The instrument is panchromatic with a medium spectral resolution between 1000 and 2000, fitting in a 40 cm × 50 cm × 90 cm box. A 3-mirror solution for both imaging and spectrograph arms has been designed, using only aspheric surfaces thus allowing for easier alignment and tolerancing.
机译：基于MOEMS的仪器可以是用于地面和空间望远镜的下垫地，允许在2D视场中进行多对象光谱。这些可编程狭缝掩模将优化SNR并为宇宙和地球观察产生紧凑且有效的光谱图像。蝙蝠侠是在加拿大群岛的TNG安装在TNG的宇宙观察的基于MoEMS的Spectro-Imager，使用了数字微镜装置来分离其成像和光谱仪臂之间的光。蝙蝠侠示威者罗宾证实了它在FOV上的可行性和图像质量。提出了一种用于宇宙观察的基于DMD的高分辨率光谱成像器的新设计：获得仅获得用于所有波长范围的一个检测器的解决方案。我们将370-950nm波长范围分成四个通道，并且对于其中每一个来实现15 000的频谱分辨率，所有这些都可以在两个探测器像素的图像质量内实现。此外，与对该科学箱更常用的分发系统相比，仪器的3镜设计意味着高吞吐量。设计了一种用于地球观测的新的MoEMS的Spectro-Imager，具有宽的2D视场（3°×1°）的约束，图像质量（<2像素=11μm）和稠度。该仪器是一种介于1000和2000之间的中频分辨率的全谱，适用于40cm×50cm×90cm盒。已经设计了一种用于两种成像和光谱仪臂的3镜子解决方案，仅使用非球面表面，从而允许更容易地对准和公差。

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