Thin and thick cross shaped metal grids

Bandpass filters made by LIGA for the THZ region: Manufacturing and testing

“…For the quantitative comparison, in Table 1 the measured parameters of the spectra and also the predicted ones are listed. The resonance wavelength is stable and very close to the 2 g value in comparison with the ''thickness peak'', explained as a ''side wall interaction'' and resulting wavelength shift linearly on t [4]. Our bandpass filters have shown good agreement with the predicted spectral parameters including an appearing and shifting of the ''thickness peak'' to a disappearing of the resonance peak.…”

“…Later, produced bandpass filters were characterized [2,3] in detail for filter thicknesses below 30 mm [4], and for wavelengths shorter then 50 mm. After recent progress in research using THz-radiation (0.1y10 THz, l [mm]=300/n[THz]) [5,6] new sources in this energy range and new spectral equipment have been discovered.…”

“…Measured and calculated parameters of the transmittance spectra.Dl/l of the resonance peak Empiric [4]. Experim.Empiric [4].…”

Extraordinary IR Transmission with Metallic Arrays of Subwavelength Holes

“…Moller et al used grids that had apertures of various shapes to first demonstrate enhanced IR transmissions (18). To move Ebbesen's extraordinary transmission effect into the IR (19), we used the finest commercially available metal mesh (Precision Eforming).…”

Dispersion Study of the Infrared Transmission Resonances of Freestanding Ni Microarrays

“…The effect on IR transmission of aperture shape and film thickness of metallic microarrays has also been studied [16][17][18][19]. The IR region has energies that match fundamental molecular vibrations, and IR absorption enhancements of more than 100 times have been reported for molecular surface species using these new phenomena [4,[20][21][22].…”