Theory and implementation of economical YBaCuO bolometers at 10.6 μm wavelength

Depond, J.M.; Carrié, François Rémi; Martin, Julien; Kreisler, Alain; Redon, M.; Martín, César San; Tétard, D.

doi:10.1016/0921-4534(94)91220-3

Cited by 5 publications

(3 citation statements)

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“…) the response time dropped to 15 ms with a lower responsivity (by a factor of three). They were the first to distinguish between these two thermal coupling regimes, further discussed in depth by Depond et al [20].…”

Section: Thick Substrate Bolometersmentioning

confidence: 96%

Recent progress in high-temperature superconductor bolometric detectors: from the mid-infrared to the far-infrared (THz) range

Kreisler

Gaugue

2000

Supercond. Sci. Technol.

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This paper reviews and summarizes the progress in research on high-T c superconducting infrared bolometers since the discovery of high-temperature superconductor (HTSC) materials. After mentioning previous review articles and their particular themes in the introduction, we recall bolometer basics in section 2, where key parameters are presented and design principles summarized. The latter include incident radiation to HTSC thermometer coupling techniques (absorber and antenna approaches) and the thermal balance inside the active region. Section 3 (which forms the largest part of the article) is devoted to medium and near-infrared transition edge bolometers (0.8-20 µm wavelength range), covering both monolithic and composite (absorber coupled) devices. The main landmarks and state-of-the-art devices are described in the order of the increasing degree of technological complexity (thick substrates, thinned or suspended substrates, micromachined silicon-based structures), while keeping in mind the sensitivity versus time response compromise and the aimed competitiveness with photon detectors. The last section treats far-infrared (antenna coupled) hot electron bolometers (HEBs), whose emergence has benefited from newly developed superconducting nanostructures and which are promising candidates for terahertz heterodyne detection. Finally, recent results on both HTSC and (more mature) low-T c HEBs are given.

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Section: Thick Substrate Bolometersmentioning

confidence: 96%

Recent progress in high-temperature superconductor bolometric detectors: from the mid-infrared to the far-infrared (THz) range

Kreisler

Gaugue

2000

Supercond. Sci. Technol.

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“…In our study the frequency dependence response was f-'.3 for f>4Oc/s and f'** for f<4Oc/s. This is in contrast to thermal [3] studies of thin(1pm) YBCO on Zirconia where f -2 and f' was found and the change occurred at 9 0 c k Heat in their case [3] was transferred downward to the substrate as opposed to our case where the carriers transfer heat towards the cold end in the plane of the film. The I-V response (Fig.5) for 295K and 150K are linear and are the ,ame for forward and reverse current bias and pass through zero.…”

Section: Results and Theorycontrasting

confidence: 82%

Optical and thermal response of thick YBCO-Bismuth junctions

Kaila

Cochrane²,

Russell³

1996 Conference on Optoelectronic and Microelectronic Materials and Devices. Proceedings

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Thick (50 micron) films of YBCO(Yttrium Barium Copper Oxide) andBismuth were prepared as a two-stage thermopile and single stage junctions on Zirconia substrates. The critical temperature of the YBCO films was found to be 85 K.The thermal and optical response of the junctions were studied using a He-Ne Laser of 10 mW power. In the two-stage thermopile(T-sT) configuration, in thermal response, a signal of 20 pV was observed for the junction near the critical temperature, corresponding to a temperature difference of a fraction of a degree. In the single stage geometry (S-sG) no significant thermal voltages were found near Tc but photothermionic transitions were observed.

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“…There have already been reports on the modulation frequency dependence of the response of the bolometers based on the classical bolometer modelling for strong and weak thermal coupling conditions [13,19,21]. Dwir et al investigate both small area and large area bolometers' response magnitudes under modulation frequencies up to 50 kHz and wavelength range of λ ∼ 600-4500 nm, and also report wavelength independent performance for both types of devices [19].…”

Section: Introductionmentioning

confidence: 99%

Effects of the superconductivity transition on the response of YBCO edge transition bolometers

Bozbey

Fardmanesh

Askerzade

et al. 2003

Supercond. Sci. Technol.

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Dependence of the phase and magnitude of the response of Y-Ba-Cu-O edge transition bolometers on the superconducting transition is studied. The responses of both large and small area devices were investigated and several anomalies are observed. The response of small area LaAlO 3 devices considerably differed from that expected based on the dR/dT curve. This discrepancy is observed to be strongly dependent on the superconducting transition. Both the phase and magnitude/(dR/dT) of the response of the devices showed abrupt changes for below the T c-onset when measured versus temperature, while the phase variation also showed strong dependence on the modulation frequency. We present the analysis and propose mechanisms responsible for the modulation frequency dependence of the response characteristics versus temperature, within the superconductivity transition region of the devices.

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Theory and implementation of economical YBaCuO bolometers at 10.6 μm wavelength

Cited by 5 publications

References 1 publication

Recent progress in high-temperature superconductor bolometric detectors: from the mid-infrared to the far-infrared (THz) range

Recent progress in high-temperature superconductor bolometric detectors: from the mid-infrared to the far-infrared (THz) range

Optical and thermal response of thick YBCO-Bismuth junctions

Effects of the superconductivity transition on the response of YBCO edge transition bolometers

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