Far-Infrared Double-Fourier Interferometers and their Spectral Sensitivity
Far-Infrared Double-Fourier Interferometers and their Spectral Sensitivity
复制标题
远红外双傅里叶干涉仪及其光谱灵敏度
DOI：
10.1086/683176
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发表时间：
2015
影响因子：
3.5
通讯作者：
R. Juanola
中科院分区：
文献类型：
--
作者：
M. Rizzo;L. Mundy;A. Dhabal;D. Fixsen;S. Rinehart;D. Benford;D. Leisawitz;R. Silverberg;T. Veach;R. Juanola
对于未来以远红外波长观测宇宙的天文仪器来说，双傅里叶干涉测量是实现亚角秒空间分辨率的最可行途径。双变换空间光谱干涉测量将光瞳平面光束组合与探测器阵列耦合，以实现宽视场成像光谱，这将是实现顶级科学目标的关键。与地面望远镜上的仪器相比，这些仪器的宽视场以及在不透明大气层上方飞行的必要性创造了独特的特征和要求。在本文中，我们讨论了单基线空间光谱干涉仪的一些特性。我们研究了强度和光程差噪声对干涉图和光谱信噪比的影响。我们将我们的发现应用于红外干涉测量气球实验双望远镜（BETTII）的特殊情况，这是一种气球有效载荷，将是该技术在飞行平台上远红外波长上的首次应用。
Double-Fourier interferometry is the most viable path to subarcsecond spatial resolution for future astronomical instruments that will observe the universe at far-infrared wavelengths. The double transform spatio-spectral interferometry couples pupil plane beam combination with detector arrays to enable imaging spectroscopy of wide fields, that will be key to accomplishing top-level science goals. The wide field of view and the necessity for these instruments to fly above the opaque atmosphere create unique characteristics and requirements compared to instruments on ground-based telescopes. In this paper, we discuss some characteristics of single-baseline spatio-spectral interferometers. We investigate the impact of intensity and optical path difference noise on the interferogram and the spectral signal-to-noise ratio. We apply our findings to the special case of the Balloon Experimental Twin Telescope for Infrared Interferometry (BETTII), a balloon payload that will be a first application of this technique at far-infrared wavelengths on a flying platform.
用于红外干涉测量的气球实验双望远镜（BETTII）：远红外高角分辨率实验
影响因子：
3.5
作者：
Rinehart S
通讯作者：
Rinehart S