Optimized polarization-independent Chand-Bali nano-antenna for thermal IR energy harvesting
- Resource Type
- article
- Authors
- Ahmed Y. Elsharabasy; Mohamed H. Bakr; M. Jamal Deen
- Source
- Scientific Reports, Vol 13, Iss 1, Pp 1-11 (2023)
- Subject
- Medicine
Science
- Language
- English
- ISSN
- 2045-2322
Abstract A novel, polarization-independent, wide-angle reception Chand-Bali nano-antenna is proposed. An adjoint-based optimization algorithm is used to create the same resonance at both linear polarizations of the incident radiation. The nano-antenna optimal parameters reveal that two hot spots with a strong field enhancement are created. These hot-spots could be integrated with metal–insulator–metal (MIM) diodes to form a rectenna for infrared (IR) energy harvesting. The metallic resonators allow for selecting several materials to facilitate the fabrication of the nano-antenna and the MIM diode. The Chand-Bali-based IR rectennas are investigated and simulations demonstrate an improvement of more than one order of magnitude in efficiency compared to ones using traditional nano-antennas.