Title :
YBCO mid-infrared bolometer arrays
Author :
Delerue, J. ; Gaugue, A. ; Testé, P. ; Caristan, E. ; Klisnick, G. ; Redon, M. ; Kreisler, A.
Author_Institution :
LGEP-Supelec, Gif sur Yvette, France
fDate :
6/1/2003 12:00:00 AM
Abstract :
A 2×2 array of YBa2Cu3O7-δ (YBaCuO) transition edge bolometers has been fabricated on an MgO substrate. The bolometers are of the meander type with line width and line spacing of 40 μm. The meander length of a single bolometer is 12.5 mm, covering an area of 1 mm×1 mm. The voltage responsivity of each pixel, at 10 μm wavelength, has been studied as a function of modulation frequency. The array exhibits a uniform response and an electrical noise equivalent power (NEP) of 4.2 ×10-12 W/√Hz or an optical NEP of 1 ×10-9 W/√Hz. Thermal crosstalk between adjacent pixels has been also studied and first imaging results are presented.
Keywords :
barium compounds; bolometers; crosstalk; high-temperature superconductors; infrared detectors; infrared imaging; superconducting arrays; superconducting device noise; superconducting photodetectors; yttrium compounds; MgO; MgO substrate; YBCO mid-infrared bolometer array; YBa2Cu3O7; electrical noise equivalent power; high-Tc superconductor; meander line; thermal crosstalk; thermal imaging; transition edge bolometer; voltage responsivity; Bolometers; Frequency modulation; Optical arrays; Optical crosstalk; Optical imaging; Optical modulation; Optical noise; Pixel; Voltage; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2003.813674
