This book highlights the fundamentals and practical methods of metamaterials-based optical and radio frequency sensing. Combined with engineering practices, the book illustrates in detail wide frequency electromagnetic signal cloaking and the detection behavior of metasurfaces, including the structure of metasurfaces, electric-controlled behaviors, layout design and fabrication methods, and related experiment results. This book is expected to inspire the research and development of new optical and radio frequency detectors. It is suitable for researchers and engineers working on semiconductor devices, applied optics, and wide frequency signal detection. It is also a good reference for students in these areas.

Jun Luo is Associate Professor of Huazhong Agricultural University and Postdoctoral of Huazhong University of Science and Technology. His research is in the area of ultra-wide spectrum signal detection, imaging system, and image processing. He has published more than 30 academic papers and 20 invention patents.

Dong Wei received Ph.D. degree in control science and engineering from Huazhong University of Science and Technology. His research interests include optical imaging system and detector. He has published more than 10 papers in international journals and academic conferences.

Xinyu Zhang is Professor of Huazhong University of Technology. His research interests include micro/nano-optics and photoelectric technology, imaging detection technology, optical and RF detection, and optical image processing. He has published more than 50 academic papers in international journals in recent years.

Ideas of Optical Frequency-RF Signal Detection.- Fundamentals of Terahertz Detectors.- Metamaterial Detection Methods.- Numerical Simulation of Metamaterials.- 5 Design and Fabrication of Metamaterial Devices.- Modeling of Infrared Long-Wave Detection for Metamaterials.- Metamaterial Signal Sensing Based on Continuous Terahertz Waves.- Signal Sensing of Electrically Controlled Metamaterials Based on Terahertz Time-Domain Spectra (THz-TDS).- Induction and Detection of Optical Frequency Infrared.- Induction and Detection of RF Millimeter Wave Signals.- Subwavelength Stealth Technology of Metamaterials.- Optical Frequency-RF Integrated Detection Architecture Based on Metamaterials.- References.