Willie J. Padilla is a Full Professor in the Department of ECE at Duke University with Physics M.S. and Ph.D. degrees from the University of California San Diego. He was a Director’s Postdoctoral Fellow at Los Alamos National Laboratory. In 2007 he received a Young Investigator Award from the Office of Naval Research, and Presidential Early Career Award for Scientists and Engineers in 2011. In 2012 he was elected a Fellow of the Optical Society of America, and Kavli Frontiers of Science Fellow in 2013. Dr. Padilla was elevated to Senior Member of the SPIE in 2018, and is a Fellow of the American Physical Society. Professor Padilla is a Web of Science Highly Cited Researcher in the field of Physics in 2018 and 2019, has more than 200 peer-reviewed journal articles, 2 book chapters, and 7 issued patents. He heads a group working in the area of artificially structured systems including metamaterials with a focus on machine learning, computational imaging, spectroscopy, and energy.Kebin Fan is an Associate Professor in the School of Electronic Science and Engineering at Nanjing University, China. He received a Ph.D. degree in mechanical engineering from Boston University in 2012. He was a Post-Doctoral Researcher and then a Research Scientist with the Boston College and Duke University from 2012–2018. He was a Research Assistant Professor in the Department of ECE at Duke University before joining Nanjing University in 2020. He has published more than 50 peer-reviewed papers and 3 issued patents. His research interests include terahertz and infrared metamaterial devices, energy harvesting, imaging, and micro-nanofabrication techniques.

• Preface.- Symbols.- Introduction.- Theory of Perfect Absorbers.- Metamaterial Perfect Absorbers and Performance.- Fabrication of Metamaterial Perfect Absorbers.- Dynamic Metamaterial Absorbers.- Applications.- Authors' Biographies.

Willie J. Padilla is a Full Professor in the Department of ECE at Duke University with Physics M.S. and Ph.D. degrees from the University of California San Diego. He was a Director’s Postdoctoral Fellow at Los Alamos National Laboratory. In 2007 he received a Young Investigator Award from the Office of Naval Research, and Presidential Early Career Award for Scientists and Engineers in 2011. In 2012 he was elected a Fellow of the Optical Society of America, and Kavli Frontiers of Science Fellow in 2013. Dr. Padilla was elevated to Senior Member of the SPIE in 2018, and is a Fellow of the American Physical Society. Professor Padilla is a Web of Science Highly Cited Researcher in the field of Physics in 2018 and 2019, has more than 200 peer-reviewed journal articles, 2 book chapters, and 7 issued patents. He heads a group working in the area of artificially structured systems including metamaterials with a focus on machine learning, computational imaging, spectroscopy, and energy.Kebin Fan is an Associate Professor in the School of Electronic Science and Engineering at Nanjing University, China. He received a Ph.D. degree in mechanical engineering from Boston University in 2012. He was a Post-Doctoral Researcher and then a Research Scientist with the Boston College and Duke University from 2012–2018. He was a Research Assistant Professor in the Department of ECE at Duke University before joining Nanjing University in 2020. He has published more than 50 peer-reviewed papers and 3 issued patents. His research interests include terahertz and infrared metamaterial devices, energy harvesting, imaging, and micro-nanofabrication techniques.

• Preface.- Symbols.- Introduction.- Theory of Perfect Absorbers.- Metamaterial Perfect Absorbers and Performance.- Fabrication of Metamaterial Perfect Absorbers.- Dynamic Metamaterial Absorbers.- Applications.- Authors' Biographies.

Willie J. Padilla is a Full Professor in the Department of ECE at Duke University with Physics M.S. and Ph.D. degrees from the University of California San Diego. He was a Director’s Postdoctoral Fellow at Los Alamos National Laboratory. In 2007 he received a Young Investigator Award from the Office of Naval Research, and Presidential Early Career Award for Scientists and Engineers in 2011. In 2012 he was elected a Fellow of the Optical Society of America, and Kavli Frontiers of Science Fellow in 2013. Dr. Padilla was elevated to Senior Member of the SPIE in 2018, and is a Fellow of the American Physical Society. Professor Padilla is a Web of Science Highly Cited Researcher in the field of Physics in 2018 and 2019, has more than 200 peer-reviewed journal articles, 2 book chapters, and 7 issued patents. He heads a group working in the area of artificially structured systems including metamaterials with a focus on machine learning, computational imaging, spectroscopy, and energy.Kebin Fan is an Associate Professor in the School of Electronic Science and Engineering at Nanjing University, China. He received a Ph.D. degree in mechanical engineering from Boston University in 2012. He was a Post-Doctoral Researcher and then a Research Scientist with the Boston College and Duke University from 2012–2018. He was a Research Assistant Professor in the Department of ECE at Duke University before joining Nanjing University in 2020. He has published more than 50 peer-reviewed papers and 3 issued patents. His research interests include terahertz and infrared metamaterial devices, energy harvesting, imaging, and micro-nanofabrication techniques.

• Preface.- Symbols.- Introduction.- Theory of Perfect Absorbers.- Metamaterial Perfect Absorbers and Performance.- Fabrication of Metamaterial Perfect Absorbers.- Dynamic Metamaterial Absorbers.- Applications.- Authors' Biographies.