Journal
MATERIALS TODAY
Volume 50, Issue -, Pages 499-515Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mattod.2021.06.014
Keywords
Metasurface; Infrared; Polarization; Poincare sphere
Categories
Funding
- National Research Foundation, Prime Minister's Office, Singapore, under its Competitive Research Program (CRP award) [NRFCRP 22-2019-0006]
- Advanced Research and Technology Innovation Centre (ARTIC) [R-261-518-004-720]
- National Natural Science Foundation of China [61974144, 61865006, 11564014, 12004258]
- Guangdong Province Key Research and Development Plan [2020B010174003]
- National Taipei University of TechnologyShenzhen University Joint Research Program [2021009]
- Science and Technology Foundation of Shenzhen [JSGG20191129114216474]
- Natural Science Foundation of Hunan Province [2019JJ50481]
- Education Department of Hunan Province [18B324]
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Infrared metasurfaces are revolutionary tools for manipulating electromagnetic waves, with potential applications in military and civilian fields. These surfaces can steer electromagnetic waves within subwavelength scale with full degrees of freedom, allowing for the development of various planar meta-devices.
Infrared metasurface, especially that having a working range covering wavelengths from 0.75 to 25 mu m, has been exploited as a revolutionary tool to manipulate the properties of electromagnetic waves owing to its potential applications in military and civilian fields. It owns the capacity to steer electromagnetic waves within subwavelength scale, with full degrees of freedom such as phase, amplitude and polarization, allowing the development of a number of planar meta-devices including the metalens, hologram, wave-plate and polarimeter. In particular, polarization, which determines the interaction of electromagnetic waves with matter, is important in almost every area of science. However, conventional materials for infrared polarization control inevitably introduce extra optical components and bulky configurations, hindering future miniaturization and integration. Moreover, compared with their short wavelength counterparts, polarization nanodevices in the infrared band and especially those in the long-wavelength infrared region have been far less explored due to the loss of material and immature fabrication techniques. Here, we review recent progress in the development of infrared metasurfaces in terms of generating, manipulating and detecting the polarization on standard and higher-order Poincare spheres. The principles, typical strategies and emerging applications of these processes are introduced. We also discuss the challenges and outlook of future developments in this emerging field.
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