Автор: Mingbo Niu
Издательство: ITexLi
Год: 2023
Страниц: 149
Язык: английский
Формат: pdf (true)
Размер: 14.3 MB
This book presents mainstream principles, circuitry architectures, and a development roadmap for intelligent electronic systems. Its content ranges from theoretical basis to materials characteristics, and from featured advances to practical applications.
Intelligent electronics could shape future smart cities and promote initiatives on exploring brand-new integrated circuits, high-effective intelligent reconfigurable surfaces, nondestructive evaluation, terahertz (THz), ITS, 6G, medical and safety imaging, and signal filtering.
The Chapter 1 explores the terahertz (THz) emission from biased semiconductor photoconductive devices. The photoconductive device is an optoelectronic device that is able to emit broadband THz radiation under the optical excitation, by an ultrafast laser, in the existence of a bias field. This chapter explains the basic principle of photoconductive devices with focusing on the main device components, being the photoconductive material and the photoconductive structure. Then, various materials and structures are discussed toward improving the performance of the photoconductive THz emitters. Furthermore, the main limitations and considerations are presented with insight into the different saturation and screening effects due to the bias field and pump fluence. Ultimately, the recent advances and studies of photoconductive THz emitters are presented in terms of material and structure, including the quantum dots, the nanostructure, the use of dielectric materials, and the grating structure on the photoconductive surfaces.
Contents:
1. Broadband Terahertz Emission from Photoconductive Devices
2. Studies of Terahertz Sources and Their Applications
3. Research and Application of PID Controller with Feedforward Filtering Function
4. Traffic State Prediction and Traffic Control Strategy for Intelligent Transportation Systems
5. Vehicle-To-Anything: The Trend of Internet of Vehicles in Future Smart Cities
6. Prediction of Large Scale Spatio-temporal Traffic Flow Data with New Graph Convolution Model
7. Low-Cost Simple Compact and Portable Ground-Penetrating Radar Prototype for Detecting Improvised Explosion Devices
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