High Accuracy Pointing for Quasi-Optical THz Mixer Arrays

José Rui Gaspar Silva,Matvey Finkel,Wouter M. Laauwen, Menno Westerweld,Nikhil More,Abram Young,Craig Kulesa,Christopher Walker,Floris van der Tak,Jian Rong Gao

IEEE Transactions on Terahertz Science and Technology（2022）

引用 6|浏览14

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摘要

We report a high accuracy pointing technique for quasi-optical hot electron bolometer (HEB) mixers in focal-plane arrays designed to operate at 1.4, 1.9, and 4.7 THz. The high accuracy pointing is achieved by prealignment of a HEB chip to a lens, measuring the angular error of each mixer in an array assembly, and then realignment of the chip to the same lens to correct the error. The realigned mix...

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关键词

Lenses,Mixers,Silicon,Receivers,Antenna measurements,Semiconductor device measurement,Quantum cascade lasers

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