Experimental investigation of a 220 GHz planar multiple bridges superconducting switch
Experimental investigation of a 220 GHz planar multiple bridges superconducting switch
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220 GHz平面多桥超导开关的实验研究
DOI：
10.1109/ucmmt.2015.7460602
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Leonid Kumini
中科院分区：
文献类型：
--
作者：
B. Tan;G. Yassin;E. Otto;Leonid Kumini
给出了以220 GHz为中心的平面超导开关的初步测量结果。超导开关由三个NbN(NbN)桥组成，放置在背靠背单边直线的狭缝部分，由类似的超导材料制成。利用超导-绝缘体-超导体(SIS)芯片作为直接探测器，测量了亚毫米光源照射下超导开关的传输特性。通过超过桥的临界电流的偏置电流，将NBN桥从超导状态切换到正常状态。在这种结构下，我们在245 GHz测量了~13db的开关动态范围，证明了多桥平面超导开关的成功运行。
We present preliminary measured responses of a planar superconducting on/off switch centred at the 220 GHz. The superconducting switch, comprising three niobium nitride (NbN) bridges, deposited across the slotline section of a back-to-back unilateral linline, made of a similar superconducting material. The transmission characteristics of the superconducting switch illuminated by a sub-millimetre source were measured using a superconductor-insulator-superconductor (SIS) chip as direct detector. The NbN bridges were switched from the super-conducting state to the normal state by a bias current exceeding the critical current of the bridges. With this arrangement, we have measured a switching dynamic range of ~ 13 dB at 245 GHz, demonstrating the successful operation of the multiple NbN bridges planar superconducting on/off switch.
DOI：
10.1117/12.671151
发表时间：
2006
期刊：
--
影响因子：
--
作者：
Grimes P
通讯作者：
Grimes P