Flexible terahertz and FarIR polymer‐supported filter | Zendy

Sanphuang Varittha | Zendy; Nahar Niru K. | Zendy

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Flexible terahertz and FarIR polymer‐supported filter

Author(s) -

Sanphuang Varittha,

Nahar Niru K.

Publication year - 2018

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.31414

Subject(s) - terahertz radiation , materials science , band pass filter , microfabrication , fabrication , filter (signal processing) , dielectric , optoelectronics , polyimide , substrate (aquarium) , refractive index , wavelength , optics , electrical engineering , composite material , engineering , physics , medicine , oceanography , alternative medicine , pathology , layer (electronics) , geology

We present the design, fabrication, and measurement of a terahertz (THz) polymer‐supported filter. A periodic structure, frequency selective surfaces (FSS) is employed to provide bandpass characteristic for this filter design with polyimide (PI) film as a substrate. This PI film (13 μm thick) is very thin and thus provides a flexible support to the filter. The average extracted dielectric constant ε r is 3.35 and the average refractive index n s is 1.84. The final filter structure was fabricated using standard microfabrication process. The measured transmission response shows high percentage of transmission (~80%) with the peak at 0.58 THz and sharp roll‐off that covers the broad range of frequency from 0.1 to 1 THz (wavelength of 300 μm‐3000 μm).

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