Detectivity of YBCO transition edge bolometer: modulation frequency, bias current and absorber effects
نویسندگان
چکیده
منابع مشابه
Noise characteristics and detectivity of YBa2Cu3O7 superconducting bolometers: Bias current, frequency, and temperature dependence
Meander line patterned infrared detectors, with values of resistance Ronset at the onset temperature Tc onset of 3–5 kV, were fabricated from YBa2Cu3O72x superconducting material on MgO and SrTiO3 crystalline substrates. Noise voltages from the samples were measured versus bias current, radiation modulation frequency, and temperature, in both the normal and superconducting states. Four major ty...
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Studies of astrophysical emission in the far-infrared and submillimeter will increasingly require large arrays of detectors containing hundreds to thousands of elements. The last few years have seen the increasing from one to a few tens of bolometers on ground-based telescopes. A further jump of this magnitude, to a thousand bolometers, requires a fundamental redesign of the technology of makin...
متن کاملTemperature dependence of the phase of the response of YBCO edge-transition bolometers: effects of superconductivity transition and thermal parameters
The variation of the phase of the response of YBCO edge-transition bolometers on crystalline MgO substrate is found to be dependent on the normal–superconducting transition. The phase of the response for T < Tc increased at low modulation frequencies where the thermal diffusion length into the sample substrate from the top absorbing YBCO film is longer than the substrate thickness. The substrat...
متن کاملThe superconducting transition width and illumination wavelength dependence of the response of MgO substrate YBCO transition edge bolometers
Dependence of the phase and magnitude of the response of MgO substrate YBa2Cu3O7 d (YBCO) transition edge bolometers to the near infrared radiation on the superconducting transition width is presented in this work. The bolometers were made of YBCO thin films of 200 nm thickness that were grown on single crystal MgO (100) substrates by DC inverted cylindrical magnetron sputtering. We have measur...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2008
ISSN: 1742-6596
DOI: 10.1088/1742-6596/97/1/012009