Lumped element kinetic inductance detectors

Simon Doyle, Philip Mauskopf, J. Naylon, A. Porch, C. Duncombe

Research output: Contribution to journalArticle

150 Citations (Scopus)

Abstract

Kinetic Inductance Detectors (KIDs) provide a promising solution to the problem of producing large format arrays of ultra sensitive detectors for astronomy. Traditionally KIDs have been constructed from superconducting quarter-wave resonant elements capacitively coupled to a co-planar feed line [1]. Photon detection is achieved by measuring the change in quasi-particle density caused by the splitting of Cooper pairs in the superconducting resonant element. This change in quasi-particle density alters the kinetic inductance, and hence the resonant frequency of the resonant element. This arrangement requires the quasi-particles generated by photon absorption to be concentrated at positions of high current density in the resonator. This is usually achieved through antenna coupling or quasi-particle trapping. For these detectors to work at wavelengths shorter than around 500 μm where antenna coupling can introduce a significant loss of efficiency, then a direct absorption method needs to be considered. One solution to this problem is the Lumped Element KID (LEKID), which shows no current variation along its length and can be arranged into a photon absorbing area coupled to free space and therefore requiring no antennas or quasi-particle trapping. This paper outlines the relevant microwave theory of a LEKID, along with theoretical and measured performance for these devices.

Original languageEnglish (US)
Pages (from-to)530-536
Number of pages7
JournalJournal of Low Temperature Physics
Volume151
Issue number1-2 PART 1
DOIs
StatePublished - Apr 2008
Externally publishedYes

Fingerprint

elementary excitations
inductance
detectors
kinetics
antennas
photons
trapping
astronomy
format
high current
resonant frequencies
resonators
current density
microwaves
wavelengths

Keywords

  • Kinetic inductance
  • Lumped element

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Lumped element kinetic inductance detectors. / Doyle, Simon; Mauskopf, Philip; Naylon, J.; Porch, A.; Duncombe, C.

In: Journal of Low Temperature Physics, Vol. 151, No. 1-2 PART 1, 04.2008, p. 530-536.

Research output: Contribution to journalArticle

Doyle, S, Mauskopf, P, Naylon, J, Porch, A & Duncombe, C 2008, 'Lumped element kinetic inductance detectors', Journal of Low Temperature Physics, vol. 151, no. 1-2 PART 1, pp. 530-536. https://doi.org/10.1007/s10909-007-9685-2
Doyle, Simon ; Mauskopf, Philip ; Naylon, J. ; Porch, A. ; Duncombe, C. / Lumped element kinetic inductance detectors. In: Journal of Low Temperature Physics. 2008 ; Vol. 151, No. 1-2 PART 1. pp. 530-536.
@article{c9585ecd71a1447aa7f87fbf029475bd,
title = "Lumped element kinetic inductance detectors",
abstract = "Kinetic Inductance Detectors (KIDs) provide a promising solution to the problem of producing large format arrays of ultra sensitive detectors for astronomy. Traditionally KIDs have been constructed from superconducting quarter-wave resonant elements capacitively coupled to a co-planar feed line [1]. Photon detection is achieved by measuring the change in quasi-particle density caused by the splitting of Cooper pairs in the superconducting resonant element. This change in quasi-particle density alters the kinetic inductance, and hence the resonant frequency of the resonant element. This arrangement requires the quasi-particles generated by photon absorption to be concentrated at positions of high current density in the resonator. This is usually achieved through antenna coupling or quasi-particle trapping. For these detectors to work at wavelengths shorter than around 500 μm where antenna coupling can introduce a significant loss of efficiency, then a direct absorption method needs to be considered. One solution to this problem is the Lumped Element KID (LEKID), which shows no current variation along its length and can be arranged into a photon absorbing area coupled to free space and therefore requiring no antennas or quasi-particle trapping. This paper outlines the relevant microwave theory of a LEKID, along with theoretical and measured performance for these devices.",
keywords = "Kinetic inductance, Lumped element",
author = "Simon Doyle and Philip Mauskopf and J. Naylon and A. Porch and C. Duncombe",
year = "2008",
month = "4",
doi = "10.1007/s10909-007-9685-2",
language = "English (US)",
volume = "151",
pages = "530--536",
journal = "Soviet Journal of Low Temperature Physics (English Translation of Fizika Nizkikh Temperatur)",
issn = "1063-777X",
publisher = "Springer New York",
number = "1-2 PART 1",

}

TY - JOUR

T1 - Lumped element kinetic inductance detectors

AU - Doyle, Simon

AU - Mauskopf, Philip

AU - Naylon, J.

AU - Porch, A.

AU - Duncombe, C.

PY - 2008/4

Y1 - 2008/4

N2 - Kinetic Inductance Detectors (KIDs) provide a promising solution to the problem of producing large format arrays of ultra sensitive detectors for astronomy. Traditionally KIDs have been constructed from superconducting quarter-wave resonant elements capacitively coupled to a co-planar feed line [1]. Photon detection is achieved by measuring the change in quasi-particle density caused by the splitting of Cooper pairs in the superconducting resonant element. This change in quasi-particle density alters the kinetic inductance, and hence the resonant frequency of the resonant element. This arrangement requires the quasi-particles generated by photon absorption to be concentrated at positions of high current density in the resonator. This is usually achieved through antenna coupling or quasi-particle trapping. For these detectors to work at wavelengths shorter than around 500 μm where antenna coupling can introduce a significant loss of efficiency, then a direct absorption method needs to be considered. One solution to this problem is the Lumped Element KID (LEKID), which shows no current variation along its length and can be arranged into a photon absorbing area coupled to free space and therefore requiring no antennas or quasi-particle trapping. This paper outlines the relevant microwave theory of a LEKID, along with theoretical and measured performance for these devices.

AB - Kinetic Inductance Detectors (KIDs) provide a promising solution to the problem of producing large format arrays of ultra sensitive detectors for astronomy. Traditionally KIDs have been constructed from superconducting quarter-wave resonant elements capacitively coupled to a co-planar feed line [1]. Photon detection is achieved by measuring the change in quasi-particle density caused by the splitting of Cooper pairs in the superconducting resonant element. This change in quasi-particle density alters the kinetic inductance, and hence the resonant frequency of the resonant element. This arrangement requires the quasi-particles generated by photon absorption to be concentrated at positions of high current density in the resonator. This is usually achieved through antenna coupling or quasi-particle trapping. For these detectors to work at wavelengths shorter than around 500 μm where antenna coupling can introduce a significant loss of efficiency, then a direct absorption method needs to be considered. One solution to this problem is the Lumped Element KID (LEKID), which shows no current variation along its length and can be arranged into a photon absorbing area coupled to free space and therefore requiring no antennas or quasi-particle trapping. This paper outlines the relevant microwave theory of a LEKID, along with theoretical and measured performance for these devices.

KW - Kinetic inductance

KW - Lumped element

UR - http://www.scopus.com/inward/record.url?scp=40649125007&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=40649125007&partnerID=8YFLogxK

U2 - 10.1007/s10909-007-9685-2

DO - 10.1007/s10909-007-9685-2

M3 - Article

AN - SCOPUS:40649125007

VL - 151

SP - 530

EP - 536

JO - Soviet Journal of Low Temperature Physics (English Translation of Fizika Nizkikh Temperatur)

JF - Soviet Journal of Low Temperature Physics (English Translation of Fizika Nizkikh Temperatur)

SN - 1063-777X

IS - 1-2 PART 1

ER -