Abstract
The development of temperature-sensitive tunable metamaterials based on GST particles is one of the hot topics. These metamaterials have rich resonance properties and can be used in communication, optical control, coding, and other fields. However, it is still elusive how to achieve the tunability of metamaterials based on GST particles while maintaining the original resonance performance. In this paper, a tunable Terahertz (THz) metamaterial based on GST particles is verified and measured, which can maintain the original resonances with temperature increasing. Two absorption peaks (P1: 86% at 1.98 THz, P2: 51% at 5.88 THz) and a valley (V1) are achieved by this metamaterial at room temperature. The P1, P2, and V1 of the samples are temperature-sensitive, which are shifted to lower frequencies with temperature increasing. The maximum FOM value is 7651, and the maximum S value is 2190. Moreover, the resonance position of the P2 is always covered by the V1 with the temperature increasing. Therefore, this proposed temperature-sensitive tunable metamaterial realizes the absorption window conversion between P2 peak (or “ON”) and V1 valley (or “OFF”). This proposed metamaterial can be applied to crystallinity sensing.
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.