Title :
Terahertz metamaterials fabrication from narrowband to broadband
Author :
Pan, Z.Y. ; Zhang, P. ; Ng, B. ; Hong, M.H.
Author_Institution :
Data Storage Inst., Agency for Sci., Technol. & Res., Singapore, Singapore
Abstract :
Split ring resonator (SRR) structures based terahertz (THz) metamaterials with different gap dimensions are fabricated on polyethylene naphthalate (PEN) films by parallel laser micro-lens array (MLA) lithography and lift-off process. The narrowband resonance is achieved in single layer SRR samples. A series of single layer SRR samples are fabricated with different gap sizes to obtain successive narrowband THz resonances over a wide THz range. For broadband design, these single layer SRR samples are stacked to form a multilayer structure. The multilayer SRR is experimentally demonstrated with a much broader bandwidth of 0.221 THz and enhanced resonance up to 2.14 times as compared to the single layer SRR.
Keywords :
metamaterials; microlenses; photolithography; resonators; terahertz materials; MLA lithography; SRR structures; broadband design; gap dimensions; lift-off process; multilayer SRR; multilayer structure; narrowband THz resonances; narrowband resonance; parallel laser microlens array; polyethylene naphthalate films; single layer SRR samples; split ring resonator; terahertz metamaterials fabrication; wide THz range; Broadband antennas; Broadband communication; Magnetic materials; Metamaterials; Narrowband; Nonhomogeneous media; Periodic structures; Broadband Spectrum; Narrowband Spectrum; Terahertz Metamaterial;
Conference_Titel :
Antennas and Propagation (APCAP), 2012 IEEE Asia-Pacific Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-0666-9
DOI :
10.1109/APCAP.2012.6333151
