Submillimeter-wave kinetic inductance bolometers on free-standing nanomembranes

Andrey Timofeev; Visa Vesterinen; Panu Helistö; Leif Grönberg; Juha Hassel; A Luukanen

doi:10.1088/0953-2048/27/2/025002

Submillimeter-wave kinetic inductance bolometers on free-standing nanomembranes

Andrey Timofeev (Corresponding Author), Visa Vesterinen, Panu Helistö, Leif Grönberg, Juha Hassel, A Luukanen

Asqella Oy

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

19 Citations (Scopus)

Abstract

We introduce a microwave submillimeter-wave detector based on an integrated micromesh absorber and superconducting kinetic inductance thermometer on a through-wafer released sub-micron thick membrane. Equilibrium operation achieved by thermal isolation through the membrane geometry enables operation at elevated thermal bath temperatures of 5-10 K. The bolometer operates in a phonon-noise limited regime with a measured noise equivalent temperature difference of below 10 mK at 1 s integration time, which is sufficient for radiometric imaging in terrestrial systems. We also measured and analyzed the bolometer frequency response in the band 0.1-1.4 THz. Performance improvements through further dimensional scale-down and temperature dependency are discussed

Original language	English
Number of pages	7
Journal	Superconductor Science and Technology
Volume	27
Issue number	2
DOIs	https://doi.org/10.1088/0953-2048/27/2/025002
Publication status	Published - 2014
MoE publication type	A1 Journal article-refereed

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abstract = "We introduce a microwave submillimeter-wave detector based on an integrated micromesh absorber and superconducting kinetic inductance thermometer on a through-wafer released sub-micron thick membrane. Equilibrium operation achieved by thermal isolation through the membrane geometry enables operation at elevated thermal bath temperatures of 5-10 K. The bolometer operates in a phonon-noise limited regime with a measured noise equivalent temperature difference of below 10 mK at 1 s integration time, which is sufficient for radiometric imaging in terrestrial systems. We also measured and analyzed the bolometer frequency response in the band 0.1-1.4 THz. Performance improvements through further dimensional scale-down and temperature dependency are discussed",

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T1 - Submillimeter-wave kinetic inductance bolometers on free-standing nanomembranes

AU - Timofeev, Andrey

AU - Vesterinen, Visa

AU - Helistö, Panu

AU - Grönberg, Leif

AU - Hassel, Juha

AU - Luukanen, A

PY - 2014

Y1 - 2014

N2 - We introduce a microwave submillimeter-wave detector based on an integrated micromesh absorber and superconducting kinetic inductance thermometer on a through-wafer released sub-micron thick membrane. Equilibrium operation achieved by thermal isolation through the membrane geometry enables operation at elevated thermal bath temperatures of 5-10 K. The bolometer operates in a phonon-noise limited regime with a measured noise equivalent temperature difference of below 10 mK at 1 s integration time, which is sufficient for radiometric imaging in terrestrial systems. We also measured and analyzed the bolometer frequency response in the band 0.1-1.4 THz. Performance improvements through further dimensional scale-down and temperature dependency are discussed

AB - We introduce a microwave submillimeter-wave detector based on an integrated micromesh absorber and superconducting kinetic inductance thermometer on a through-wafer released sub-micron thick membrane. Equilibrium operation achieved by thermal isolation through the membrane geometry enables operation at elevated thermal bath temperatures of 5-10 K. The bolometer operates in a phonon-noise limited regime with a measured noise equivalent temperature difference of below 10 mK at 1 s integration time, which is sufficient for radiometric imaging in terrestrial systems. We also measured and analyzed the bolometer frequency response in the band 0.1-1.4 THz. Performance improvements through further dimensional scale-down and temperature dependency are discussed

U2 - 10.1088/0953-2048/27/2/025002

DO - 10.1088/0953-2048/27/2/025002

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VL - 27

JO - Superconductor Science and Technology

JF - Superconductor Science and Technology

IS - 2

ER -

Submillimeter-wave kinetic inductance bolometers on free-standing nanomembranes

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