Keywords and Phrases
Absorber; Electromagnetic; Emitter; Metamaterials; Nanophotonics
"Electromagnetic absorbers and emitters have been attracting interest in lots of fields, which are significantly revitalized because of the novel properties brought by the development of the metamaterials, the artificially designed materials. Metamaterials broadens the approaches to design the electromagnetic absorbers and emitters, making it possible to obtain the perfect absorption or emission at the wavelengths covering a wide range. Metamaterial absorbers and emitters are promising for various applications, including solar thermal-photovoltaics and thermal-photovoltaics for energy harvesting, chemical and biomedical sensors, nanoscale imaging and color printing. This work focuses on three aspects (materials, structures and design methods) to improve the experiment realizations of visible and infrared absorbers and emitters. Firstly, this work investigates simple structures based on aluminum and tungsten materials for the metamaterial absorber and emitter, which results in the realization of the all-metal visible color printing with square resonators and wavelength selective mid-infrared absorber (emitter) with cross resonators, respectively. Secondly, we explore the thermal emission properties of the quasi-periodic metal-dielectric multilayer metamaterials, which show the ability of engineering emissivity by different lattice structures. Finally, this work demonstrates the use of micro-genetic algorithm to realize efficient design and optimization for broadband metasurface absorbers, as well as wavelength-selective metasurfaces with giant circular dichroism. This work is believed to facilitate the development and application of metamaterial absorbers and emitters"--Abstract, page iv.
Mechanical and Aerospace Engineering
Ph. D. in Mechanical Engineering
United States. Office of Naval Research
National Science Foundation (U.S.)
Center for Nanoscale Materials
United States. Department of Energy. Office of Basic Energy Sciences
Intelligent Systems Center
Missouri University of Science and Technology
Journal article titles appearing in thesis/dissertation
- All-metal structural color printing based on aluminum plasmonic metasurfaces
- Wavelength-selective mid-infrared metamaterial absorbers with multiple tungsten cross resonators
- Engineering the thermal emission via quasi-periodic metal-dielectric multilayer stacks
- Broadband infrared binary-pattern metasurface absorbers with micro genetic algorithm optimization
- Strong circular dichroism in plasmonic metasurfaces optimized by micro genetic algorithm
xiii, 142 pages
© 2019 Zhigang Li, All rights reserved.
Dissertation - Open Access
Electronic OCLC #
Li, Zhigang, "Wavelength-selective metamaterial absorber and emitter" (2019). Doctoral Dissertations. 2891.