Abstract
The broadband absorption effect of stacked metal-dielectric grating structures is studied. Two TE polarization broadband absorbers, which consisted of two or three pairs of vertically cascaded metal-dielectric grating structures, are designed and investigated. The absorbers exhibit near-unity absorbance at multiple adjacent wavelengths and high absorbance over a wide wavelength range. The electric field distributions at multiple adjacent resonant wavelengths are investigated, which can provide a qualitative understanding of such broadband absorption behavior. The mechanism of such broadband absorption effect is attributed to guided mode resonance in different dielectric spacer layers. It is believed that the results may provide useful guidance for the design of TE polarization broadband absorbers.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.