Title :
Terahertz transmission of subwavelength planar fractals
Author :
Zhao, Guozhong ; Yang, Guozhen
Author_Institution :
Dept. of Phys., Capital Normal Univ., Beijing, China
Abstract :
Optical transmission properties of subwavelength planar fractals in terahertz (THz) frequency region are studied by means of time-domain spectroscopy. The transmission spectra with multiple pass bands and stop bands are observed. The tunable photonic band gaps are realized by changing the angle between the principle axis of planar fractal and the polarization of THz wave. The possible application of the subwavelength optical component is discussed. We attribute the detected transmittance from subwavelength fractals to localized resonance.
Keywords :
electromagnetic wave polarisation; fractals; light transmission; localised states; photonic band gap; spectra; submillimetre wave spectroscopy; submillimetre waves; THz wave polarization; localized resonance; optical transmission properties; pass bands; photonic band gaps; planar fractal; stop bands; subwavelength optical component; subwavelength planar fractals; terahertz frequency region; time domain spectroscopy; transmission spectra; Electromagnetic scattering; Fractals; Frequency selective surfaces; Optical scattering; Particle scattering; Photonic band gap; Photonic crystals; Physics; Resonance; Spectroscopy;
Conference_Titel :
Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics, 2005. IRMMW-THz 2005. The Joint 30th International Conference on
Print_ISBN :
0-7803-9348-1
DOI :
10.1109/ICIMW.2005.1572460
