Abstract In this paper, by the transparent-component-decimation (TCD) method we obtain three kinds of new basic-components (BCs) through simplifying and decomposing the BCs of three-component Thue--Morse (3CTM) sequence. Based on these new BCs we propose a type of basic-structural-units (BSUs) and investigate the optical transmission of the one-dimensional (1D) superlattices composed of these BSUs. It is found that if the substrates of the 1D BSU superlattices are certain, the optical transmission at the central wavelength (CW) will be determined completely by the number and the type of BSUs and has nothing to do with the marshalling sequence. In particular, if the substrates are identical, the numbers of different types of BSUs are all the same and the middle two elements of BSUs constitute a cycle, then no matter whether the system is periodic, or quasiperiodic, or aperiodic, or unordered, or even random, it will be transparent at the CW. The conclusion is confirmed by the numerical results. Similar to the even layers of neighbourhood identical elements in TCD method, such a kind of optical BSU subsystem can also be decimated from the chain in the process of transmission investigation. There would be a potential application in the designing of some interesting optical devices.
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 10974061), and the Program for Innovative Research Team of the Higher Education in Guangdong, China (Grant No. 06CXTD005).
Cite this article:
Zhang Guo-Gang(张国刚) and Yang Xiang-Bo(杨湘波) Optical transmission through basic-structural-unit superlattices 2010 Chin. Phys. B 19 097808
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