Method for Optimizing the Response Bandwidth of Terahertz Detectors with Blocking Impurities

A terahertz detector and response bandwidth technology, which is applied in the direction of using electrical radiation detectors for photometry, etc., can solve the problems of high time and economic cost, and achieve the effect of optimizing the response bandwidth and reducing the cost of research and development.

Active Publication Date: 2018-08-17
NO 50 RES INST OF CHINA ELECTRONICS TECH GRP
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Problems solved by technology

In practical applications, the optimal response bandwidth of the detector depends on the emission spectrum of the target to be measured. Therefore, in order to obtain the optimal response bandwidth, the existing technology is to use the BIB detector for multiple test strips, and the time and economic cost are equal. higher

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  • Method for Optimizing the Response Bandwidth of Terahertz Detectors with Blocking Impurities
  • Method for Optimizing the Response Bandwidth of Terahertz Detectors with Blocking Impurities
  • Method for Optimizing the Response Bandwidth of Terahertz Detectors with Blocking Impurities

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Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0032] According to the method for optimizing the response bandwidth of a blocking impurity band (BIB) terahertz detector provided by the present invention, the method obtains the function formula of the detector response bandwidth with respect to different absorbing layer thicknesses through numerical simulation and data fitting. The optimal thickness of the absorbing layer was determined according to the obtained function of the detector response bandwidth with respect to different absorbing layer thic...

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Abstract

The invention provides a method for optimizing blocked impurity band terahertz detector response bandwidth. The method comprises the steps that firstly a function expression of detector response bandwidth about different absorption layer thickness is obtained through numerical simulation and data fitting, and then the optimal absorption layer thickness is extracted according to the function expression and the designed optimal response bandwidth so that the detector response bandwidth is enabled to be optimal by a blocked impurity band detector manufactured according to the thickness. The advantages of the method are that the corresponding optimal absorption layer thickness can be extracted for the blocked impurity band detector obtained by different material systems and different process conditions, and the designed and manufactured detector response bandwidth has the optimal value so that repeated testing for optimizing the response bandwidth can be avoided, and the research and development period can be greatly shortened and the research and development cost can be reduced.

Description

technical field [0001] The invention relates to semiconductor photodetector technology, in particular to a method for optimizing the response bandwidth of a terahertz detector blocking an impurity band. Background technique [0002] Terahertz radiation refers to electromagnetic waves with a frequency in the range of 0.3-10THz. It is located between microwave and infrared in the electromagnetic spectrum, and has the characteristics of strong penetration, good safety, high resolution and excellent orientation. As the current mainstream terahertz technology, terahertz imaging and spectroscopy technology has irreplaceable application value in the fields of human security inspection, non-destructive flaw detection, material identification, atmospheric monitoring, astronomical observation and so on. The key to the application of terahertz technology lies in whether the performance of its core detector meets the application requirements. Therefore, the development of high-performan...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J1/42
CPCG01J1/42
Inventor 王晓东陈雨璐王兵兵张传胜侯丽伟潘鸣
Owner NO 50 RES INST OF CHINA ELECTRONICS TECH GRP
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