Abstract

We propose four types of metamaterial absorbers (MAs) to have tunable absorption resonance and polarization-dependent/independent, single-band, and dual-band switch characterizations. By tailoring four types of MAs with different heights between top and bottom metal layers, absorption resonance can be modified at a 5.92 μm wavelength, and the absorption intensity can be attenuated gradually. These characteristics of MA devices can be potentially used in a variable optical attenuator (VOA). By changing the distance between the top unit cells of four devices, the resonances can be tuned in the range of a 1.74 μm wavelength with an exponential relationship. All absorption intensities can be maintained over 90%. Furthermore, MA devices also possess single-band and dual-band switch characterizations by controlling the polarization angle of incident light, which helps the MA to have the potential in a multifunctional switch. By comparing the range of switch ratios, it can be spanned 1.76 for dual-band switch function. This Letter provides a strategy to open an avenue for VOA, absorber, detector, sensor, and switch applications in the IR wavelength range.

© 2018 Optical Society of America

Full Article  |  PDF Article
More Like This
Reconfigurable and tunable terahertz wrench-shape metamaterial performing programmable characteristic

Zefeng Xu, Zhicheng Lin, Shaojun Cheng, and Yu-Sheng Lin
Opt. Lett. 44(16) 3944-3947 (2019)

Infrared metamaterial absorber by using chalcogenide glass material with a cyclic ring-disk structure

Zefeng Xu, Ruijia Xu, Jun Sha, Bin Zhang, Yanlin Tong, and Yu-Sheng Lin
OSA Continuum 1(2) 573-580 (2018)

Reconfigurable room temperature metamaterial infrared emitter

Xinyu Liu and Willie J. Padilla
Optica 4(4) 430-433 (2017)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription