用于大气研究卫星载荷的波导集成太赫兹量子级联激光器

2019 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2019-08-19 DOI:10.1109/IEEE-IWS.2019.8803875

A. Valavanis, O. Auriacombe, T. Rawlings, Y. Han, S. Rea, M. Crook, C. Arena, D. Walker, D. Brooks, G. Yu, L. Li, A. Davies, G. Savini, E. Linfield, B. Ellison, E. Sáenz

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引用次数: 1

摘要

太赫兹频率量子级联激光器(THz qcl)是紧凑的，在~2 - 5太赫兹波段的窄带辐射的电驱动源。地球上层大气中许多科学上重要的气相物质在这个波段内具有独特的光谱特征，使qcl成为光谱和辐射大气研究的有吸引力的来源。在本文中，我们展示了QCL与卫星兼容的制冷机，精密微机械波导，一对对角馈角和卡塞格伦望远镜的集成，作为完整的3.5太赫兹集成接收器系统的关键步骤。

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Waveguide-integrated THz Quantum-Cascade Lasers for Atmospheric-Research Satellite Payloads

Terahertz-frequency quantum-cascade lasers (THz QCLs) are compact, electrically-driven sources of narrowband radiation in the ~2–5-THz band. Numerous scientifically important gas-phase species within the Earth’s upper atmosphere have distinctive spectral features within this band, making QCLs attractive sources for spectroscopic and radiometric atmospheric studies. In this paper, we demonstrate the integration of a QCL with a satellite-compliant cryocooler, precision-micromachined waveguide, a pair of diagonal feedhorns and a Cassegrain telescope, as key steps toward a complete 3.5-THz integrated receiver system.

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2019 IEEE MTT-S International Wireless Symposium (IWS)

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