From Superconducting to Semiconducting YBCO Thin Film Bolometers: Sensitivity and Crosstalk Investigations for Future THz Imagers

被引：10
作者：
Jagtap, Vishal S. [1 ,2 ,3 ,4 ]
Scheuring, Alexander [1 ]
Longhin, Mattia [1 ,2 ,3 ,4 ]
Kreisler, Alain J. [1 ,2 ,3 ,4 ]
Degardin, Annick F. [1 ,2 ,3 ,4 ]
机构：
[1] SUPELEC LGEP, F-91190 Gif Sur Yvette, France
[2] CNRS, UMR 8507, F-91190 Gif Sur Yvette, France
[3] Univ Paris 06, UPMC, F-91190 Gif Sur Yvette, France
[4] Univ Paris 11, F-91190 Gif Sur Yvette, France
来源：
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2009年 / 19卷 / 03期
关键词：
Bolometer arrays; semiconducting YBCO; superconducting YBCO; thermal modeling; THz antennas;
D O I：
10.1109/TASC.2009.2019285
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
YBa2Cu3O6+x compounds are well known to exhibit superconducting properties for x > 0.5 and semiconducting properties for lower oxygen content. Superconducting YBCO was obtained commercially; the semiconducting material was deposited by sputtering close to room temperature (100 degrees C, typically). In order to migrate from superconducting to uncooled semiconducting far-infrared bolometer technologies, we have compared the performance of 2 x 2 pixel arrays. Pixels were in the shape of meanders, embedded in an area of about 1 mm(2) Pixel detectivity and thermal crosstalk were studied in the 1 Hz to 100 kHz modulation frequency range by using a 850 nm solid state laser. Specific THz antenna concepts were also considered.
引用
收藏
页码：287 / 292
页数：6
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