CaltechAUTHORS
  A Caltech Library Service

Development of fast, background-limited transition-edge sensors for the background-limited infrared/sub-mm spectrograph (BLISS) for SPICA

Beyer, Andrew D. and Kenyon, M. and Echternach, P. M. and Bumble, B. and Runyan, M. C. and Chui, T. and Bradford, C. M. and Holmes, W. A. and Bock, J. J. (2012) Development of fast, background-limited transition-edge sensors for the background-limited infrared/sub-mm spectrograph (BLISS) for SPICA. In: Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI. Proceedings of SPIE. No.8452. Society of Photo-Optical Instrumentation Engineers , Bellingham, WA, Art. No. 84520G. ISBN 9780819491534. https://resolver.caltech.edu/CaltechAUTHORS:20161025-105655155

[img] PDF - Published Version
See Usage Policy.

1MB

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20161025-105655155

Abstract

We report experimental progress toward demonstrating background-limited arrays of membrane-isolated transition-edge sensors (TESs) for the Background Limited Infrared/Sub-mm Spectrograph (BLISS). BLISS is a space-borne instrument with grating spectrometers for wavelengths λ = 35-435 µm and with R= λ/Δ; λ ~500. The goals for BLISS TESs are: noise equivalent power (NEP) = 5×10^(-20) W/Hz^(1/2) and response time τ<30ms. We expect background-limited performance from bilayers TESs with T_C=65mK and G=15fW/K. However, such TESs cannot be operated at 50mK unless stray power on the devices, or dark power P_D, is less than 200aW. We describe criteria for measuring P_D that requires accurate knowledge of T_C. Ultimately, we fabricated superconducting thermistors from Ir (T_C≥135mK) and Mo/Cu proximitized bilayers, where TC is the thermistor transition temperature. We measured the Ir TES arrays in our 45mK base temperature adiabatic demagnetization refrigerator test system, which can measure up to eight 1x32 arrays simultaneously using a time-division multiplexer, as well as our single-pixel test system which can measure down to 15mK. In our previous Ir array measurements our best reported performance was NEP=2.5×10^(-19) W/Hz^(1/2) and τ~5ms for straight-beam TESs. In fact, we expected NEP 1.5×10^(-19)W/Hz^(1/2) for meander beam TESs, but did not achieve this previously due to 1/f noise. Here, we detail improvements toward measuring the expected NEP and demonstrate NEP=(1.3±0.2)×10^(-19)W/Hz^(1/2) in our single-pixel test system and NEP=(1.6±0.3)×10^(-19)W/Hz^(1/2) in our array test system.


Item Type:Book Section
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1117/12.926326DOIArticle
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1362958PublisherArticle
ORCID:
AuthorORCID
Bradford, C. M.0000-0001-5261-7094
Bock, J. J.0000-0002-5710-5212
Additional Information:© 2012 SPIE.
Subject Keywords:transition-edge sensors, infrared spectrometer, sub-mm spectrometer, photon background-limited
Series Name:Proceedings of SPIE
Issue or Number:8452
DOI:10.1117/12.926326
Record Number:CaltechAUTHORS:20161025-105655155
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20161025-105655155
Official Citation:Andrew D. Beyer ; M. Kenyon ; P. M. Echternach ; B. Bumble ; M. C. Runyan ; T. Chui ; C. M. Bradford ; W. A. Holmes ; J. J. Bock; Development of fast, background-limited transition-edge sensors for the background-limited infrared/sub-mm spectrograph (BLISS) for SPICA. Proc. SPIE 8452, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VI, 84520G (September 24, 2012); doi:10.1117/12.926326
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:71445
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:25 Oct 2016 19:14
Last Modified:11 Nov 2021 04:45

Repository Staff Only: item control page