A Highly Sensitive Detector for Radiation in the Terahertz Region

A Highly Sensitive Detector for Radiation in the Terahertz Region
复制标题

太赫兹区域辐射的高灵敏度探测器

DOI:
10.1109/tim.2007.891146
复制
发表时间:
2007
影响因子:
5.6
通讯作者:
S. Komiyama
S. Komiyama
中科院分区:
工程技术2区
文献类型:
--
作者:
P. Kleinschmidt;S. Giblin;V. Antonov;H. Hashiba;L. Kulik;A. Tzalenchuk;S. Komiyama

文献摘要

参考文献

被引文献

相似文献

在本文中,我们报告了一种太赫兹区域光子探测器的开发进展,该探测器由一个横向量子点(QD)组成,该量子点在半导体异质结构中通过台面图案和三个负偏置金属门来定义,并且在台面顶部有一个单电子晶体管(SET),因此与量子点电容耦合。我们使用SET作为敏感电荷探测器,研究了量子点作为施加到栅极的电位的函数的行为,并确定了器件的偏置区域,在该区域对入射太赫兹辐射敏感。量子点将入射光子转换为电荷激发,这可以被SET检测到,导致每个吸收光子产生10 8个电子的信号。基于暗计数率和量子效率的估计,探测器应该能够在太赫兹区域进行低功耗测量,其噪声等效功率约为10-19 W/Hz1/2,比商用热辐射计的灵敏度高出两个数量级
In this paper, we report progress in the development of a detector for photons in the terahertz region consisting of a lateral quantum dot (QD), defined in a semiconductor heterostructure by mesa patterning and three negatively biased metallic gates, and a single-electron transistor (SET) on top of the mesa and, hence, capacitively coupled to the QD. We study the behavior of the QD as a function of the potential applied to the gates using the SET as a sensitive charge detector and identify the bias region of the device, where it is sensitive to incident terahertz radiation. The QD converts incident photons into charge excitations, which can be detected by the SET, resulting in a signal of the order 10 8 electrons for each absorbed photon. Based on the dark count rate and an estimate of the quantum efficiency, the detector should enable low-power measurements in the terahertz region with noise-equivalent power ~10-19 W/Hz1/2 exceeding the sensitivity of commercially available bolometers by two orders of magnitude
DOI: 10.1063/1.1482787
发表时间: 2002-06-03
影响因子: 4
作者:
Astafiev, O;Komiyama, S;Hirakawa, K
通讯作者: Hirakawa, K
适用于亚毫米波长范围的高灵敏度探测器
DOI: --
发表时间: 2004
期刊: Appl. Phys. Lett. 85
影响因子: --
作者:
小宮山進;K.Ikushima;H.Sakuma;S.Komiyama;S.Komyama;H.Sakuma;S.Komiyama;K.Ikushima;生嶋健司;Z.An;小宮山進;S.Komiyama;K.Ikushima;生嶋健司;S.Komiyama;K.Ikushima;S.Komiyama;K.Ikushima;小宮山 進;K.Ikushima;H.Hashiba
通讯作者: H.Hashiba