Compact terahertz instruments for planetary missions
Compact terahertz instruments for planetary missions
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用于行星任务的紧凑型太赫兹仪器
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
I. Mehdi
中科院分区：
文献类型：
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作者：
G. Chattopadhyay;T. Reck;A. Tang;C. Jung;Choonsup Lee;J. Siles;E. Schlecht;Yanghyo Kim;M. Chang;I. Mehdi
利用新开发的硅微加工技术，实现低质量和高度集成的接收器，我们正在开发一种最先进的太赫兹辐射计/光谱仪仪器，用于火星，金星，泰坦和伽利略卫星的行星轨道飞行器任务。我们灵活的接收机架构提供了一个强大的仪器能力，在一个轻量，低功耗的紧凑封装，提供前所未有的灵敏度性能，频谱覆盖和可扩展性，以满足多种任务的科学要求。该仪器将允许大量的化学物质，如水、NO2、N2O、NH3、SO2、H2S、CH4和HCN等，在火星、金星和土卫六的大气中以低于十亿分之一的浓度被检测到。它还将能够精确定位它们的纬度、经度和海拔高度。这种太赫兹仪器的成熟将对其他领域产生直接影响，例如用于天体物理学的多像素焦平面外差阵列，以及用于各种国家安全应用的太赫兹成像仪和雷达。
Using newly developed silicon micromachining technology that enables low-mass and highly integrated receivers, we are developing a state-of-the-art terahertz radiometer/spectrometer instrument for planetary orbiter missions to Mars, Venus, Titan, and the Galilean moons. Our flexible receiver architecture provides a powerful instrument capability in a light-weight, low-power consuming compact package which offer unprecedented sensitivity performance, spectral coverage, and scalability to meet the scientific requirements of multiple missions. The instrument will allow a large number of chemical species, such as water, NO2, N2O, NH3, SO2, H2S, CH4, and HCN, among others, in the atmospheres of Mars, Venus, and Titan to be detected at concentrations below a part per billion. It will also be able to pinpoint their location in latitude, longitude, and in altitude. The maturation of this terahertz instrument will have an immediate impact on other areas such as multi-pixel focal plane heterodyne arrays for astrophysics and terahertz imagers and radars for a variety of national security applications.