Terahertz temperature-dependent defect mode in a semiconductor-dielectric photonic crystal

Hui Chuan Hung*, Chien Jang Wu, Shoou Jinn Chang


研究成果: 雜誌貢獻期刊論文同行評審

70 引文 斯高帕斯(Scopus)


In this work, terahertz (THz) temperature-dependent properties of defect mode in a defective semiconductor-dielectric photonic crystal (SDPC) are theoretically investigated based on the calculated transmittance spectrum. Two different defective PCs, the symmetric structure of (Si/SiO2) NInSb(SiO2/Si)N and the asymmetric one of (Si/SiO2)NInSb(Si/SiO2)N, will be considered. With a strongly temperature-dependent permittivity in defect layer InSb, the defect mode can be thermally tuned, that is, the defect frequency will be shifted to higher frequency as the temperature increases. With the inherent loss in InSb, the strength of defect mode will be strongly depressed at a higher temperature. We use the condition of impedance match to explain the presence of defect mode. The understanding of properties of defect mode could be of technical use in the terahertz optoelectronic applications.

期刊Journal of Applied Physics
出版狀態已發佈 - 2011 11月 1

ASJC Scopus subject areas

  • 物理與天文學 (全部)


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