Wideband Sub-mm Wave Superconducting Integrated Filter-bank Spectrometer

Laguna, Alejandro Pascual; Karatsu, K.; Neto, A.; Endo, Akira; Baselmans, J. J. A.

doi:10.1109/irmmw-thz.2019.8873913

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…DESHIMA 2.0 is an upgrade of DESHIMA 1.0, which is currently under development. 45 The target instantaneous frequency coverage is 220-440 GHz, with a frequency spacing and half-power channel bandwidth of f /∆f = 500.…”

Section: Measurementsmentioning

confidence: 99%

TiEMPO: Open-source time-dependent end-to-end model for simulating ground-based submillimeter astronomical observations

Huijten

Roelvink

Brackenhoff

et al. 2020

Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X

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The next technological breakthrough in millimeter-submillimeter astronomy is 3D imaging spectrometry with wide instantaneous spectral bandwidths and wide fields of view. The total optimization of the focal-plane instrument, the telescope, the observing strategy, and the signal-processing software must enable efficient removal of foreground emission from the Earth's atmosphere, which is time-dependent and highly nonlinear in frequency.Here we present TiEMPO : Time-dependent End-to-end Model for Post-process Optimization of the DESHIMA spectrometer. TiEMPO utilizes a dynamical model of the atmosphere and parametrized models of the astronomical source, the telescope, the instrument, and the detector. The output of TiEMPO is a timestream of sky brightness temperature and detected power, which can be analyzed by standard signal-processing software.We first compare TiEMPO simulations with an on-sky measurement by the wideband DESHIMA spectrometer, and find good agreement in the noise power spectral density and sensitivity. We then use TiEMPO to simulate the detection of the line emission spectrum of a high-redshift galaxy using the DESHIMA 2.0 spectrometer in development. The TiEMPO model is open source. Its modular and parametrized design enables users to adapt it to design and optimize the end-to-end performance of spectroscopic and photometric instruments on existing and future telescopes.

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Section: Measurementsmentioning

confidence: 99%

TiEMPO: Open-source time-dependent end-to-end model for simulating ground-based submillimeter astronomical observations

Huijten

Roelvink

Brackenhoff

et al. 2020

Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X

View full text Add to dashboard Cite

show abstract

TiEMPO: open-source time-dependent end-to-end model for simulating ground-based submillimeter astronomical observations

Huijten

Roelvink

Brackenhoff

et al. 2022

J. Astron. Telesc. Instrum. Syst.

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The next technological breakthrough in millimeter-submillimeter astronomy is threedimensional imaging spectrometry with wide instantaneous spectral bandwidths and wide fields of view. The total optimization of the focal-plane instrument, the telescope, the observing strategy, and the signal-processing software must enable efficient removal of foreground emission from the Earth's atmosphere, which is time-dependent and highly nonlinear in frequency. Here, we present Time-dependent End-to-end Model for Post-process Optimization (TiEMPO) of the DEep Spectroscopic HIgh-redshift MApper (DESHIMA) spectrometer. TiEMPO utilizes a dynamical model of the atmosphere and parameterized models of the astronomical source, the telescope, the instrument, and the detector. The output of TiEMPO is a time stream of sky brightness temperature and detected power, which can be analyzed by standard signal-processing software. We first compare TiEMPO simulations with an on-sky measurement by the wideband DESHIMA spectrometer, and find good agreement in the noise and sensitivity. We then use TiEMPO to simulate the detection of the line emission spectrum of a high-redshift galaxy using the DESHIMA 2.0 spectrometer in development. The TiEMPO model is open source. Its modular and parametrized design enables users to adapt it to optimize the end-to-end performance of spectroscopic and photometric instruments on existing and future telescopes. © The Authors.Published by SPIE under a Creative Commons Attribution 4.0 International License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Wideband Sub-mm Wave Superconducting Integrated Filter-bank Spectrometer

Cited by 2 publications

References 7 publications

TiEMPO: Open-source time-dependent end-to-end model for simulating ground-based submillimeter astronomical observations

TiEMPO: Open-source time-dependent end-to-end model for simulating ground-based submillimeter astronomical observations

TiEMPO: open-source time-dependent end-to-end model for simulating ground-based submillimeter astronomical observations

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