Fabrication of terahertz metamaterials by laser printing.
A laser printing technique was used to fabricate split-ring resonators (SRRs) on Si substrates for terahertz (THz) metamaterials and their resonance behavior evaluated by THz time-domain spectroscopy. The laser-printed Ag SRRs exhibited sharp edge definition and excellent thickness uniformity, which resulted in an electromagnetic response similar to that from identical Au SRR structures prepared by conventional photolithography. These results demonstrate that laser printing is a practical alternative to conventional photolithography for fabricating metamaterial structures at terahertz frequencies, since it allows their design to be easily modified and optimized.
Naval Research Laboratory, 4555 Overlook Avenue, SW, Washington, DC 20375, USA. heungsoo.kim@nrl.navy.mil
Heungsoo
H
Kim
Joseph S
JS
Melinger
Ani
A
Khachatrian
Nicholas A
NA
Charipar
Raymond C Y
RC
Auyeung
Alberto
A
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