A Titanium Nitride Absorber for Controlling Optical Crosstalk in Horn-Coupled Aluminum LEKID Arrays for Millimeter Wavelengths

H. McCarrick; D. Flanigan; G. Jones; B. R. Johnson; P. A R Ade; K. Bradford; S. Bryan; R. Cantor; G. Che; P. Day; S. Doyle; H. Leduc; M. Limon; Philip Mauskopf; A. Miller; T. Mroczkowski; C. Tucker; J. Zmuidzinas

doi:10.1007/s10909-015-1424-5

A Titanium Nitride Absorber for Controlling Optical Crosstalk in Horn-Coupled Aluminum LEKID Arrays for Millimeter Wavelengths

H. McCarrick, D. Flanigan, G. Jones, B. R. Johnson, P. A R Ade, K. Bradford, S. Bryan, R. Cantor, G. Che, P. Day, S. Doyle, H. Leduc, M. Limon, Philip Mauskopf, A. Miller, T. Mroczkowski, C. Tucker, J. Zmuidzinas

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

We discuss the design and measured performance of a titanium nitride (TiN) mesh absorber we are developing for controlling optical crosstalk in horn-coupled lumped-element kinetic inductance detector (LEKID) arrays for millimeter wavelengths. This absorber was added to the fused silica anti-reflection coating attached to previously characterized, 20-element prototype arrays of LEKIDs fabricated from thin-film aluminum on silicon substrates. To test the TiN crosstalk absorber, we compared the measured response and noise properties of LEKID arrays with and without the TiN mesh. For this test, the LEKIDs were illuminated with an adjustable, incoherent electronic millimeter-wave source. Our measurements show that the optical crosstalk in the LEKID array with the TiN absorber is reduced by 66 % on average, so the approach is effective and a viable candidate for future kilo-pixel arrays.

Original language	English (US)
Pages (from-to)	154-160
Number of pages	7
Journal	Journal of Low Temperature Physics
Volume	184
Issue number	1-2
DOIs	https://doi.org/10.1007/s10909-015-1424-5
State	Published - Jul 1 2016

Keywords

Cosmic microwave background
Kinetic inductance detectors
Millimeter-wave sensors

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Materials Science(all)
Condensed Matter Physics

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10.1007/s10909-015-1424-5

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McCarrick, H., Flanigan, D., Jones, G., Johnson, B. R., Ade, P. A. R., Bradford, K., Bryan, S., Cantor, R., Che, G., Day, P., Doyle, S., Leduc, H., Limon, M., Mauskopf, P., Miller, A., Mroczkowski, T., Tucker, C., & Zmuidzinas, J. (2016). A Titanium Nitride Absorber for Controlling Optical Crosstalk in Horn-Coupled Aluminum LEKID Arrays for Millimeter Wavelengths. Journal of Low Temperature Physics, 184(1-2), 154-160. https://doi.org/10.1007/s10909-015-1424-5

McCarrick, H, Flanigan, D, Jones, G, Johnson, BR, Ade, PAR, Bradford, K, Bryan, S, Cantor, R, Che, G, Day, P, Doyle, S, Leduc, H, Limon, M, Mauskopf, P, Miller, A, Mroczkowski, T, Tucker, C & Zmuidzinas, J 2016, 'A Titanium Nitride Absorber for Controlling Optical Crosstalk in Horn-Coupled Aluminum LEKID Arrays for Millimeter Wavelengths', Journal of Low Temperature Physics, vol. 184, no. 1-2, pp. 154-160. https://doi.org/10.1007/s10909-015-1424-5

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title = "A Titanium Nitride Absorber for Controlling Optical Crosstalk in Horn-Coupled Aluminum LEKID Arrays for Millimeter Wavelengths",

abstract = "We discuss the design and measured performance of a titanium nitride (TiN) mesh absorber we are developing for controlling optical crosstalk in horn-coupled lumped-element kinetic inductance detector (LEKID) arrays for millimeter wavelengths. This absorber was added to the fused silica anti-reflection coating attached to previously characterized, 20-element prototype arrays of LEKIDs fabricated from thin-film aluminum on silicon substrates. To test the TiN crosstalk absorber, we compared the measured response and noise properties of LEKID arrays with and without the TiN mesh. For this test, the LEKIDs were illuminated with an adjustable, incoherent electronic millimeter-wave source. Our measurements show that the optical crosstalk in the LEKID array with the TiN absorber is reduced by 66 % on average, so the approach is effective and a viable candidate for future kilo-pixel arrays.",

keywords = "Cosmic microwave background, Kinetic inductance detectors, Millimeter-wave sensors",

author = "H. McCarrick and D. Flanigan and G. Jones and Johnson, {B. R.} and Ade, {P. A R} and K. Bradford and S. Bryan and R. Cantor and G. Che and P. Day and S. Doyle and H. Leduc and M. Limon and Philip Mauskopf and A. Miller and T. Mroczkowski and C. Tucker and J. Zmuidzinas",

note = "Funding Information: This research is supported in part by a grant from the Research Initiatives for Science and Engineering (RISE) program at Columbia University to Bradley Johnson, and by internal Columbia University funding to Amber Miller. Heather McCarrick is supported by a NASA Earth and Space Science Fellowship (NESSF). We thank the Xilinx University Program for their donation of FPGA hardware and software tools used in the readout system. Publisher Copyright: {\textcopyright} 2015, Springer Science+Business Media New York.",

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doi = "10.1007/s10909-015-1424-5",

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AU - McCarrick, H.

AU - Flanigan, D.

AU - Jones, G.

AU - Johnson, B. R.

AU - Ade, P. A R

AU - Bradford, K.

AU - Bryan, S.

AU - Cantor, R.

AU - Che, G.

AU - Day, P.

AU - Doyle, S.

AU - Leduc, H.

AU - Limon, M.

AU - Mauskopf, Philip

AU - Miller, A.

AU - Mroczkowski, T.

AU - Tucker, C.

AU - Zmuidzinas, J.

N1 - Funding Information: This research is supported in part by a grant from the Research Initiatives for Science and Engineering (RISE) program at Columbia University to Bradley Johnson, and by internal Columbia University funding to Amber Miller. Heather McCarrick is supported by a NASA Earth and Space Science Fellowship (NESSF). We thank the Xilinx University Program for their donation of FPGA hardware and software tools used in the readout system. Publisher Copyright: © 2015, Springer Science+Business Media New York.

PY - 2016/7/1

Y1 - 2016/7/1

N2 - We discuss the design and measured performance of a titanium nitride (TiN) mesh absorber we are developing for controlling optical crosstalk in horn-coupled lumped-element kinetic inductance detector (LEKID) arrays for millimeter wavelengths. This absorber was added to the fused silica anti-reflection coating attached to previously characterized, 20-element prototype arrays of LEKIDs fabricated from thin-film aluminum on silicon substrates. To test the TiN crosstalk absorber, we compared the measured response and noise properties of LEKID arrays with and without the TiN mesh. For this test, the LEKIDs were illuminated with an adjustable, incoherent electronic millimeter-wave source. Our measurements show that the optical crosstalk in the LEKID array with the TiN absorber is reduced by 66 % on average, so the approach is effective and a viable candidate for future kilo-pixel arrays.

AB - We discuss the design and measured performance of a titanium nitride (TiN) mesh absorber we are developing for controlling optical crosstalk in horn-coupled lumped-element kinetic inductance detector (LEKID) arrays for millimeter wavelengths. This absorber was added to the fused silica anti-reflection coating attached to previously characterized, 20-element prototype arrays of LEKIDs fabricated from thin-film aluminum on silicon substrates. To test the TiN crosstalk absorber, we compared the measured response and noise properties of LEKID arrays with and without the TiN mesh. For this test, the LEKIDs were illuminated with an adjustable, incoherent electronic millimeter-wave source. Our measurements show that the optical crosstalk in the LEKID array with the TiN absorber is reduced by 66 % on average, so the approach is effective and a viable candidate for future kilo-pixel arrays.

KW - Cosmic microwave background

KW - Kinetic inductance detectors

KW - Millimeter-wave sensors

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A Titanium Nitride Absorber for Controlling Optical Crosstalk in Horn-Coupled Aluminum LEKID Arrays for Millimeter Wavelengths

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