High-Tc, transition-edge superconducting (TES) bolometer on a monolithic sapphire membrane—construction and performance

Lakew, B.; Brasunas, J. C.; Aslam, Shahid; Pugel, D. E.

doi:10.1016/j.sna.2004.02.039

Cited by 11 publications

(13 citation statements)

References 9 publications

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“…Bolometers are radiation sensors that detect incident energy via the increase of the temperature T caused by the absorption of incoming photons [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Bolometers are often used, e.g., for thermal infrared cameras (see, e.g., [1][2][3][4][5][6][7][8][9][10]), mm-wave sensing [1][2][3][4][5][6][8][9][10][11][12][13], space-based [12,13], laboratory far-infrared spectroscopy [13], etc. [1][2][3][4][5][6][7][8][9]…”

Section: Introductionmentioning

confidence: 99%

“…Bolometers are often used, e.g., for thermal infrared cameras (see, e.g., [1][2][3][4][5][6][7][8][9][10]), mm-wave sensing [1][2][3][4][5][6][8][9][10][11][12][13], space-based [12,13], laboratory far-infrared spectroscopy [13], etc. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Superconductors are among the best candidate materials for bolometers, due to their extreme sensitivity to T near the superconducting transition, measurable for instance through the sharp variations of the electrical resistance R (resistive transition-edge bolometer-TES).…”

Section: Introductionmentioning

confidence: 99%

“…For resistive TES bolometers, a key figure for performance is the so-called "temperature coefficient of resistance" (TCR), given by [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]:…”

Section: Introductionmentioning

confidence: 99%

“…After the discovery of high-T c cuprate superconductors (HTS), various authors have explored their use for resistive bolometers with simpler liquid-nitrogen-based cryogenics (the so-called resistive HTS TES bolometers [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]). The compound YBa 2 Cu 3 O δ (YBCO) is the HTS material usually considered for this application, usually with maximum-T c doping, i.e., stoichiometry δ 6.93.…”

Section: Introductionmentioning

confidence: 99%

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Calculations of Some Doping Nanostructurations and Patterns Improving the Functionality of High-Temperature Superconductors for Bolometer Device Applications

et al. 2020

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We calculate the effects of doping nanostructuration and the patterning of thin films of high-temperature superconductors (HTS) with the aim of optimizing their functionality as sensing materials for resistive transition-edge bolometer devices (TES). We focus, in particular, on spatial variations of the carrier doping into the CuO 2 layers due to oxygen off-stoichiometry, (that induce, in turn, critical temperature variations) and explore following two major cases of such structurations: First, the random nanoscale disorder intrinsically associated to doping levels that do not maximize the superconducting critical temperature; our studies suggest that this first simple structuration already improves some of the bolometric operational parameters with respect to the conventional, nonstructured HTS materials used until now. Secondly, we consider the imposition of regular arrangements of zones with different nominal doping levels (patterning); we find that such regular patterns may improve the bolometer performance even further. We find one design that improves, with respect to nonstructured HTS materials, both the saturation power and the operating temperature width by more than one order of magnitude. It also almost doubles the response of the sensor to radiation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Calculations of Some Doping Nanostructurations and Patterns Improving the Functionality of High-Temperature Superconductors for Bolometer Device Applications

et al. 2020

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“…Superconductor transition-edge sensors are one of the most sensitive radiation detectors in the range of infrared to far infrared [1,2]. One of the most effective parameters in the sensitivity of these types of detectors is their surface absorption that determines the efficiency of radiation absorption.…”

Section: Introductionmentioning

confidence: 99%

Effect of the nano-structure Cu-carbon composite absorber layer on the response of superconductive YBCO TEBs

Kokabi

Moftakharzadeh

Ghodselahi

et al. 2008

J. Phys.: Conf. Ser.

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Effect of the nano-structure Cu-carbon composite absorber layer on the response of superconductive YBCO TEBs Abstract. We have used a nanostructure copper composite layer as the absorber for infrared radiation on superconductive YBCO bolometers. The Cu composite has the advantage of having little destructive effects on superconductive YBCO material and its deposition process is done at low temperature. The bolometer is made of 200nm thick YBCO film on 1mm thick LaAlO 3 and SrTiO 3 crystalline substrates, deposited using pulsed laser deposition technique. The Cu composite layers were made by decomposition of C 2 H 2 and co sputtering of Cu target in an RF system. The layer was deposited on an insulating buffer layer of diamond like carbon (DLC). The spectral absorption of the Cu composite layer was also measured through measurements of the spectral transmission and reflection of the layer on various substrates. The control of the absorption of the composite layer versus Cu composition has been achieved and presented here. In addition, optimization of the Cu component of the absorber layer for maximum increase of the response of the detectors as well as its effects on the response characteristics of the devices are presented in this paper. IntroductionSuperconductor transition-edge sensors are one of the most sensitive radiation detectors in the range of infrared to far infrared [1,2]. One of the most effective parameters in the sensitivity of these types of detectors is their surface absorption that determines the efficiency of radiation absorption. Typical transition-edge sensors are implemented by thin layer of high-T c superconductor such as YBCO [3]. But due to weak absorption of YBCO material in the IR range [4], these devices typically do not reach their potentially high detectivity values because a little fraction of input power is absorbed by the device when using the bare YBCO film [5]. Therefore, surface coating is essential for increasing infrared response of these devices, particularly in the micrometer wavelength range.One of the major hinders of using absorber layers for the superconducting ETBs is due to their destructive effects on the electrical properties of the superconducting YBCO material. For example, they can cause lowering of the critical temperature T c or smoothening the transition curve. Smoothening and widening transition curve is an undesirable effect, which reduces peak value in dR/dT curves and hence reducing the IR response [6]. In this work, we introduce a novel absorber, which was coated using a low temperature process and had very little destructive effect on our bolometer device. The absorber, used in this work, is a copper-carbon nano-composite that is coated in a low temperature planar magnetron sputtering process, where we have control over the percentage of copper composition in the deposited absorber layer. As we show in this paper, the absorption coefficient of this film is strongly dependent on Cu composition, leading to the control of the absorption coefficient.

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All Metal Organic Deposited High-T c Superconducting Transition Edge Bolometer on Yttria-Stabilized Zirconia Substrate

Mohajeri

Opata

Wulff

et al. 2016

J Supercond Nov Magn

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High-Tc, transition-edge superconducting (TES) bolometer on a monolithic sapphire membrane—construction and performance

Cited by 11 publications

References 9 publications

Calculations of Some Doping Nanostructurations and Patterns Improving the Functionality of High-Temperature Superconductors for Bolometer Device Applications

Calculations of Some Doping Nanostructurations and Patterns Improving the Functionality of High-Temperature Superconductors for Bolometer Device Applications

Effect of the nano-structure Cu-carbon composite absorber layer on the response of superconductive YBCO TEBs

All Metal Organic Deposited High-T c Superconducting Transition Edge Bolometer on Yttria-Stabilized Zirconia Substrate

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