A broadband terahertz electromagnetic structure for photodetection
A technology of photoelectric detection and electromagnetic structure, which is applied in the field of signal detection and identification in the photoelectric field, can solve the problems of small working bandwidth, unfavorable photoelectric signal detection, and cannot well reflect the working performance of photoelectric devices, and achieves low profile, compact structure and good performance. The effect of electromagnetic radiation gain
Active Publication Date: 2022-06-24
ZHEJIANG LAB
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[0003] The traditional photoelectric detection electromagnetic structure, including bow-tie structure, logarithmic periodic structure, etc., has a small working bandwidth in the terahertz frequency band, which is unfavorable for the detection of photoelectric signals and cannot reflect the working performance of photoelectric devices; at the same time, traditional photoelectric The detection electromagnetic structure is not easy to connect directly with the existing interface
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[0024] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below through the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present invention.
[0025] The broadband terahertz electromagnetic structure for photoelectric detection according to the present invention includes three parts: a base structure A, an electromagnetic energy radiation structure B, and a detector DC power supply structure C. The electromagnetic energy radiation structure B is in the form of a coplanar waveguide, including two parts, a coplanar waveguide 10 and a main radiation structure ...
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The invention discloses a broadband terahertz electromagnetic structure for photoelectric detection, which includes a base structure, an electromagnetic energy radiation structure and a detector DC power supply structure are arranged on the upper surface of the base structure, and the electromagnetic energy radiation structure adopts a coplanar waveguide form, the electromagnetic energy radiation structure includes a coplanar waveguide and a main radiation structure, the coplanar waveguide includes a middle rectangle and two side rectangles, and the main radiation structure is a circular connection structure. To detect the broadband terahertz electromagnetic structure, first design and optimize the broadband electromagnetic energy radiation structure working in the terahertz frequency band, then design and optimize the DC power supply structure of the photodetector, and integrate the DC power supply structure and the electromagnetic energy radiation structure Confused, placed on a medium substrate. By continuously optimizing the structural parameters, a broadband electromagnetic structure working in the terahertz frequency band was finally obtained.
Description
technical field [0001] The invention relates to the field of signal detection and identification in the field of optoelectronics, in particular to a broadband terahertz electromagnetic structure for optoelectronic detection. Background technique [0002] Photoelectric detection technology is one of the key technologies of modern communication technology. With the rapid increase in the demand for communication speed, the transmission rate based on copper medium is far from meeting the requirements of current communication technology. The representative of high-speed signal transmission technology with optical fiber as the main transmission medium With the development direction of future communication technology, the technical trend of "optical advance and copper retreat" is becoming more and more obvious. The photoelectric detection technology is a key part of the optical fiber high-speed signal transmission technology, which plays an important role in the quality detection o...
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IPC IPC(8): H01Q1/38H01Q1/50H01Q1/22
CPCH01Q1/38H01Q1/50H01Q1/22
Inventor 应小俊沈思逸邓庆文尹坤
Owner ZHEJIANG LAB