IEEE Photonics Journal 4(5), 1267 – 1272, (2012)
Data Storage Inst., Agency for Sci.,
Technol. & Res. (A*STAR), Singapore, Singapore
ABSTRACT
Hybrid metamaterials comprising split-ring resonator (SRR)
structures with different gap dimensions are fabricated on polyethylene
naphthalate (PEN) films by parallel laser micro-lens array (MLA) lithography
and a liftoff process. The unit cell of hybrid metamaterials consists of four
SRRs with the same SRR core side length but different gap sizes. The
different-gap-size SRRs in each unit cell correspond to different but
successive resonance dips, which are coupled to form a significantly broader
band with enhanced resonance. The hybrid SRRs design is numerically and
experimentally demonstrated, showing a much broader bandwidth to cover all
narrowband induced by each SRR and enhanced resonance as compared with a
uniform SRR design.
.
.....The pitch p of the samples
is defined by the
pitch size of the MLA, which is fixed at 100 m. The sample characterization is
carried out with
a THz time-domain spectroscopy (THz-TDS) system (TPS3000, Teraview Inc.)
in ..Register for free at http://www.teraview.com/info/contact-us.php
To sign up for TeraView's newsletter click here
No comments:
Post a Comment