Far infrared imaging spectrometers for the next generation astronomical instruments

Conference paper (2022)

Authors

J.J.A. Baselmans Tera-Hertz Sensing - EEMCS , SRON–Netherlands Institute for Space Research
A. Endo Tera-Hertz Sensing - EEMCS
David Thoen Tera-Hertz Sensing - EEMCS
V. Murugesan SRON–Netherlands Institute for Space Research
Paul van der werf Universiteit Leiden
P.J. de Visser SRON–Netherlands Institute for Space Research, Tera-Hertz Sensing - EEMCS
K. Karatsu SRON–Netherlands Institute for Space Research
S. Hähnle SRON–Netherlands Institute for Space Research
A. Pascual Laguna SRON–Netherlands Institute for Space Research
S.J.C. Yates SRON–Netherlands Institute for Space Research
Lorenza Ferrari SRON–Netherlands Institute for Space Research
Nuria Llombart Tera-Hertz Sensing - EEMCS
J. Bueno Lopez Electronics - EEMCS
F. Facchi Student
Research Group
Tera-Hertz Sensing (EEMCS) (TU Delft)
Copyright: © 2022 J.J.A. Baselmans, A. Endo, K. Karatsu, S. Hähnle, A. Pascual Laguna, S. Yates, L. Ferrari, Nuria Llombart, J. Bueno Lopez, F. Facchi, David Thoen, V. Murugesan, P. van der werf, P.J. de Visser
DOI: https://doi.org/10.1109/IRMMW-THz50927.2022.9895752
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Published Date

2022

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Tera-Hertz Sensing

Abstract

Advances in far infrared astronomy have been, and will be, defined by instrument capabilities. Especially relevant is the development of imaging spectrometers for the wavelength range of 0.03-3 mm, which are not available at all at this moment. We will discuss recent advances in this field: First, we discuss the development of miniature on-chip spectrometers, that can operate in a 0.09-1 THz by using lossless superconducting circuits to create miniature spectrometers. For higher frequencies this is not possible due to material limitations, moreover instruments have to be operated in space due to the opacity of the atmosphere. Recent proposals for new missions focus on space-based observatories with optics cooled down to 4K, which offer unprecedented spectral imaging speeds, but require large arrays of extremely sensitive detectors. In the second part of this paper we will discuss the development of microwave Kinetic Inductance detectors with a sensitivity of NEP. 3.1.10-20 W/ãHz, sufficient for these applications.

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