TY - GEN
T1 - Effect of thin-film interference on resonance spectra of distorted metamaterials
AU - Chiang, Wei Fan
AU - Huang, Chia Yi
AU - Lee, Chia Rong
N1 - Funding Information:
The authors would like to thank the Ministry of Science and Technology of Taiwan for financially research under Contract No. MOST 104-2112-M-029 -004 -MY3.
Publisher Copyright:
© 2018 SPIE.
PY - 2018
Y1 - 2018
N2 - This study investigated a polyethylene terephthalate (PET) substrate and the effect of indium tin oxide (ITO) thin-film interference on the electromagnetic resonance of distorted metamaterials. The photoresist was developed on a PET substrate and swollen using isopropyl alcohol. The SRRs had various total lengths, gaps, and line widths. In addition, each of these three dimensions varied greatly and thus the distorted SRRs exhibited a broadband resonance spectrum. An ITO thin film was coated on the back of the PET substrate with a distorted metamaterials sample, and the terahertz spectrum was measured. The experimental results revealed that the ITO thin film can flatten the spectrum of the SRR sample. To determine the underlying reason, we varied the sheet resistance of the ITO film and observed the differences among the corresponding spectra. The flattened spectrum of the ITO films enhanced the thin-film interference effect of the PET substrate; consequently, the distorted metamaterials exhibited a flattened spectrum. These distorted metamaterials can be applied in terahertz imaging, terahertz communication systems, and optoelectronic integrated circuits.
AB - This study investigated a polyethylene terephthalate (PET) substrate and the effect of indium tin oxide (ITO) thin-film interference on the electromagnetic resonance of distorted metamaterials. The photoresist was developed on a PET substrate and swollen using isopropyl alcohol. The SRRs had various total lengths, gaps, and line widths. In addition, each of these three dimensions varied greatly and thus the distorted SRRs exhibited a broadband resonance spectrum. An ITO thin film was coated on the back of the PET substrate with a distorted metamaterials sample, and the terahertz spectrum was measured. The experimental results revealed that the ITO thin film can flatten the spectrum of the SRR sample. To determine the underlying reason, we varied the sheet resistance of the ITO film and observed the differences among the corresponding spectra. The flattened spectrum of the ITO films enhanced the thin-film interference effect of the PET substrate; consequently, the distorted metamaterials exhibited a flattened spectrum. These distorted metamaterials can be applied in terahertz imaging, terahertz communication systems, and optoelectronic integrated circuits.
UR - http://www.scopus.com/inward/record.url?scp=85048885470&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85048885470&partnerID=8YFLogxK
U2 - 10.1117/12.2288902
DO - 10.1117/12.2288902
M3 - Conference contribution
AN - SCOPUS:85048885470
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XI
A2 - Sadwick, Laurence P.
A2 - Yang, Tianxin
PB - SPIE
T2 - 2017 Conference on Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XI
Y2 - 29 January 2018 through 1 February 2018
ER -