Evaluation of nano-slot antenna for mid-infrared detectors
Evaluation of nano-slot antenna for mid-infrared detectors
复制标题
DOI：
10.1016/j.infrared.2014.07.001
复制
发表时间：
2014-11-01
影响因子：
3.3
通讯作者：
Shimakage, Hisashi
中科院分区：
文献类型：
--
作者：
Horikawa, Junsei;Kawakami, Akira;Shimakage, Hisashi
为了提高超导红外探测器的响应性能，我们提出了使用光子天线与微探测器结合纳米结构。在本文中，我们报告的评估结果，显示在中红外区域的光子天线的基本特性。该天线由一个纳米缝隙天线和一个放置在天线中心的薄膜负载电阻组成。天线的设计工作在大约几十太赫兹，通过使用电磁模拟器。通过光谱反射特性的测量，在大约50 THz处观察到由天线特性引起的明显反射，并且还观察到高偏振依赖性。模拟结果与实验结果定性一致。天线的有效面积也进行了评估，并发现在54太赫兹约为3.5 μ m（2）。(C)2014爱思唯尔有限公司版权所有。
To improve the response performance of superconducting infrared detectors, we propose using a photonic antenna with a micro-detector in conjunction with a nano-structure. In this paper, we report evaluation results that show the basic characteristics of a photonic antenna in the mid-infrared region. The antenna consists of a nano-slot antenna and a thin-film load resistance placed in the center of the antenna. The antennas were designed for operation at approximately several tens of THz by using an electromagnetic simulator. Through measurements of the spectral reflectance characteristics, clear absorptions caused by the antenna properties were observed at approximately 50 THz, and high polarization dependencies were also observed. The results of the simulation qualitatively agreed with the results of the experiment. The effective area of the antenna was also evaluated and was found to be approximately 3.5 mu m(2) at 54 THz. (C) 2014 Elsevier B.V. All rights reserved.