Publication

A novel, highly efficient cavity backshort design for far-infrared TES detectors

Bracken, C., de Lange, G., Audley, M. D., Trappe, N., Murphy, J. A., Gradziel, M., Vreeling, W. J. & Watson, D., Mar-2018, In : Infrared physics & technology. 89, p. 194-202 9 p.

Research output: Contribution to journalArticleAcademicpeer-review

APA

Bracken, C., de Lange, G., Audley, M. D., Trappe, N., Murphy, J. A., Gradziel, M., ... Watson, D. (2018). A novel, highly efficient cavity backshort design for far-infrared TES detectors. Infrared physics & technology, 89, 194-202. https://doi.org/10.1016/j.infrared.2018.01.004

Author

Bracken, C. ; de Lange, G. ; Audley, M. D. ; Trappe, N. ; Murphy, J. A. ; Gradziel, M. ; Vreeling, W. J. ; Watson, D. / A novel, highly efficient cavity backshort design for far-infrared TES detectors. In: Infrared physics & technology. 2018 ; Vol. 89. pp. 194-202.

Harvard

Bracken, C, de Lange, G, Audley, MD, Trappe, N, Murphy, JA, Gradziel, M, Vreeling, WJ & Watson, D 2018, 'A novel, highly efficient cavity backshort design for far-infrared TES detectors' Infrared physics & technology, vol. 89, pp. 194-202. https://doi.org/10.1016/j.infrared.2018.01.004

Standard

A novel, highly efficient cavity backshort design for far-infrared TES detectors. / Bracken, C.; de Lange, G.; Audley, M. D.; Trappe, N.; Murphy, J. A.; Gradziel, M.; Vreeling, W. J.; Watson, D.

In: Infrared physics & technology, Vol. 89, 03.2018, p. 194-202.

Research output: Contribution to journalArticleAcademicpeer-review

Vancouver

Bracken C, de Lange G, Audley MD, Trappe N, Murphy JA, Gradziel M et al. A novel, highly efficient cavity backshort design for far-infrared TES detectors. Infrared physics & technology. 2018 Mar;89:194-202. https://doi.org/10.1016/j.infrared.2018.01.004


BibTeX

@article{1ef790b62a4247cd838f184b3fff320a,
title = "A novel, highly efficient cavity backshort design for far-infrared TES detectors",
abstract = "In this paper we present a new cavity backshort design for TES (transition edge sensor) detectors which will provide increased coupling of the incoming astronomical signal to the detectors. The increased coupling results from the improved geometry of the cavities, where the geometry is a consequence of the proposed chemical etching manufacturing technique. Using a number of modelling techniques, predicted results of the performance of the cavities for frequencies of 4.3–10 THz are presented and compared to more standard cavity designs. Excellent optical efficiency is demonstrated, with improved response flatness across the band. In order to verify the simulated results, a scaled model cavity was built for testing at the lower W-band frequencies (75–100 GHz) with a VNA system. Further testing of the scale model at THz frequencies was carried out using a globar and bolometer via an FTS measurement set-up. The experimental results are presented, and compared to the simulations. Although there is relatively poor comparison between simulation and measurement at some frequencies, the discrepancies are explained by means of higher-mode excitation in the measured cavity which are not accounted for in the single-mode simulations. To verify this assumption, a better behaved cylindrical cavity is simulated and measured, where excellent agreement is demonstrated in those results. It can be concluded that both the simulations and the supporting measurements give confidence that this novel cavity design will indeed provide much-improved optical coupling for TES detectors in the far-infrared/THz band.",
keywords = "Transition edge sensor, Far-infrared, Anisotropic silicon crystal etching, VNA, Cavity backshort, Bolometer, FTS",
author = "C. Bracken and {de Lange}, G. and Audley, {M. D.} and N. Trappe and Murphy, {J. A.} and M. Gradziel and Vreeling, {W. J.} and D. Watson",
year = "2018",
month = "3",
doi = "10.1016/j.infrared.2018.01.004",
language = "English",
volume = "89",
pages = "194--202",
journal = "Infrared physics & technology",
issn = "1350-4495",

}

RIS

TY - JOUR

T1 - A novel, highly efficient cavity backshort design for far-infrared TES detectors

AU - Bracken, C.

AU - de Lange, G.

AU - Audley, M. D.

AU - Trappe, N.

AU - Murphy, J. A.

AU - Gradziel, M.

AU - Vreeling, W. J.

AU - Watson, D.

PY - 2018/3

Y1 - 2018/3

N2 - In this paper we present a new cavity backshort design for TES (transition edge sensor) detectors which will provide increased coupling of the incoming astronomical signal to the detectors. The increased coupling results from the improved geometry of the cavities, where the geometry is a consequence of the proposed chemical etching manufacturing technique. Using a number of modelling techniques, predicted results of the performance of the cavities for frequencies of 4.3–10 THz are presented and compared to more standard cavity designs. Excellent optical efficiency is demonstrated, with improved response flatness across the band. In order to verify the simulated results, a scaled model cavity was built for testing at the lower W-band frequencies (75–100 GHz) with a VNA system. Further testing of the scale model at THz frequencies was carried out using a globar and bolometer via an FTS measurement set-up. The experimental results are presented, and compared to the simulations. Although there is relatively poor comparison between simulation and measurement at some frequencies, the discrepancies are explained by means of higher-mode excitation in the measured cavity which are not accounted for in the single-mode simulations. To verify this assumption, a better behaved cylindrical cavity is simulated and measured, where excellent agreement is demonstrated in those results. It can be concluded that both the simulations and the supporting measurements give confidence that this novel cavity design will indeed provide much-improved optical coupling for TES detectors in the far-infrared/THz band.

AB - In this paper we present a new cavity backshort design for TES (transition edge sensor) detectors which will provide increased coupling of the incoming astronomical signal to the detectors. The increased coupling results from the improved geometry of the cavities, where the geometry is a consequence of the proposed chemical etching manufacturing technique. Using a number of modelling techniques, predicted results of the performance of the cavities for frequencies of 4.3–10 THz are presented and compared to more standard cavity designs. Excellent optical efficiency is demonstrated, with improved response flatness across the band. In order to verify the simulated results, a scaled model cavity was built for testing at the lower W-band frequencies (75–100 GHz) with a VNA system. Further testing of the scale model at THz frequencies was carried out using a globar and bolometer via an FTS measurement set-up. The experimental results are presented, and compared to the simulations. Although there is relatively poor comparison between simulation and measurement at some frequencies, the discrepancies are explained by means of higher-mode excitation in the measured cavity which are not accounted for in the single-mode simulations. To verify this assumption, a better behaved cylindrical cavity is simulated and measured, where excellent agreement is demonstrated in those results. It can be concluded that both the simulations and the supporting measurements give confidence that this novel cavity design will indeed provide much-improved optical coupling for TES detectors in the far-infrared/THz band.

KW - Transition edge sensor

KW - Far-infrared

KW - Anisotropic silicon crystal etching

KW - VNA

KW - Cavity backshort

KW - Bolometer

KW - FTS

U2 - 10.1016/j.infrared.2018.01.004

DO - 10.1016/j.infrared.2018.01.004

M3 - Article

VL - 89

SP - 194

EP - 202

JO - Infrared physics & technology

JF - Infrared physics & technology

SN - 1350-4495

ER -

ID: 77811926