This book contains detailed descriptions and associated discussions regarding different generation, detection and signal processing techniques for the electrical and optical signals within the THz frequency spectrum (0.3-10 THz). It includes detailed reviews of some recently developed electronic and photonic devices for generating and detecting THz waves, potential materials for implementing THz passive circuits, some newly developed systems and methods associated with THz wireless communication, THz antennas and some cutting-edge techniques associated with the THz signal and image processing. The book especially focuses on the recent advancements and several research issues related to THz sources, detectors and THz signal and image processing techniques; it also discusses theoretical, experimental, established and validated empirical works on these topics. The book caters to a very wide range of readers from basic science to technological experts as well as students.

This book contains detailed descriptions and associated discussions regarding different generation, detection and signal processing techniques for the electrical and optical signals within the THz frequency spectrum (0.3–10 THz). It includes detailed reviews of some recently developed electronic and photonic devices for generating and detecting THz waves, potential materials for implementing THz passive circuits, some newly developed systems and methods associated with THz wireless communication, THz antennas and some cutting-edge techniques associated with the THz signal and image processing. The book especially focuses on the recent advancements and several research issues related to THz sources, detectors and THz signal and image processing techniques; it also discusses theoretical, experimental, established and validated empirical works on these topics. The book caters to a very wide range of readers from basic science to technological experts as well as students.

Introduction to Generation, Detection and Processing of Terahertz Signals.- Investigating Absorption Cross-Section and Oscillator Strength for Double Quantum Well with Pöschl-Teller Potential.- Channel Characterization and CE-OFDM Modulation for Terahertz System.- Investigation on Antennas for Terahertz Applications.- All Optical Encryption and Decryption Circuit.- Gallium Oxide Based IMPATT Sources for THz Applications.- All Optical XOR gate using Quantum Dot Semiconductor Optical Amplifier based Terahertz Optical Asymmetric Demultiplexer (TOAD).- Generation, Detection and Analysis of Sub-Terahertz Over The Air (OTA) Test Bed for 6G Mobile Communication Use Cases.- THz Image Processing and Its Applications.- A DC Analysis of Single Gate TFET using in as Channel Material.- Cutting-Edge Technologies for Terahertz Wave Generation: A Brief History from the Inception till the Present State-of-the-Art.