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Spectra of the real (; filled circles) and imaginary (; empty circles) components of the THz dielectric constant for the heavily-doped free-standing thick film. The lines are to guide the eye.
Observed THz time-domain wave forms transmitted through the heavily doped free-standing film perforated with two-dimensional hole array (solid trace), and in the absence of the sample (dashed trace) for normalization. Inset: photograph of the free-standing -thick film perforated with 2D hole array having -square periodicity and diameter.
Frequency-domain transmission spectra for free-standing films of heavily-doped films with (solid trace) and (dashed trace) periodicity, and an unperforated film (dotted trace).
Frequency-domain transmission spectrum through the free-standing heavily-doped film with periodicity (solid trace) and a stainless steel foil over coated with Ag (dotted trace) having the same periodicity.
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