| Original Articles |
|
|
|
|
Multiband Terahertz Photonic Band Gaps of Subwavelength Planar Fractals |
| ZHAO Guo-Zhong1;TIAN Yan1;SUN Hong-Qi1;ZHANG Cun-Lin1;YANG Guo-Zhen2 |
| 1Department of Physics, Capital Normal University, Beijing 100037
2Institute of Physics, Chinese Academy of Sciences, Beijing 100080 |
|
| Cite this article: |
|
ZHAO Guo-Zhong, TIAN Yan, SUN Hong-Qi et al 2006 Chin. Phys. Lett. 23 1456-1458 |
|
|
|
|
Abstract Optical transmission properties of subwavelength planar fractals in terahertz (THz) frequency regime 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 resonances.
|
| Keywords:
42.25.Bs
42.70.Qs
81.40.Tv
|
|
|
Published: 01 June 2006
|
|
| PACS: |
42.25.Bs
|
(Wave propagation, transmission and absorption)
|
| |
42.70.Qs
|
(Photonic bandgap materials)
|
| |
81.40.Tv
|
(Optical and dielectric properties related to treatment conditions)
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
