A route to large-scale ultra-low noise detector arrays for far-infrared space applications

David J. Goldie; Stafford Withington; Christopher N. Thomas; Peter A. R. Ade; Rashmi V. Sudiwala

doi:10.1117/12.2629954

31 August 2022 A route to large-scale ultra-low noise detector arrays for far-infrared space applications

David J. Goldie, Stafford Withington, Christopher N. Thomas, Peter A. R. Ade, Rashmi V. Sudiwala

Proceedings Volume 12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI; 121900J (2022) https://doi.org/10.1117/12.2629954
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada

Abstract

Far-infrared detectors for future cooled space telescopes require ultra-sensitive detectors with optical noise equivalent powers of order 0.2 aW/√Hz. This performance has already been demonstrated in arrays of transition edge sensors. A critical step is demonstrating a method of fabrication and assembly that maintains the performance but that is extendable to create large-scale arrays suitable, for example, for application in dispersive spectrometers where it may be advantageous to fabricate the array from smaller sub-arrays. Critical here are the methods of assembly and metrology that maintain the required tolerances on the spatial alignment of the components in order to maintain overall performance. These are discussed and demonstrated.

Conference Presentation

Citation Download Citation

David J. Goldie, Stafford Withington, Christopher N. Thomas, Peter A. R. Ade, and Rashmi V. Sudiwala "A route to large-scale ultra-low noise detector arrays for far-infrared space applications", Proc. SPIE 12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI, 121900J (31 August 2022); https://doi.org/10.1117/12.2629954

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