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所属单位：[1]南开大学现代光学研究所,天津300071;[2]电子科技大学电子薄膜与集成器件国家重点实验室,四川成都610054

发表刊物：Journal of Optoelectronics·Laser

关键字：terahertz （THz） waves;modulator; VO2 thin film; insulator-metal transition

摘要：Two types of terahertz （THz） modulators consisting of VO2thin film,SiO2su bstrate,and subwavelength metallic hole arrays have been designed and demonstrated.The transmission inten sities of these modulators can be actively tuned by the insulator-metal phase transition of VO2with moderate o ptical pumping.By comparing the two types of structures,it is obvious that the VO2film in metallic phase bene a th the metallic hole arrays can effectively undermine the localized enhancement of THz surface plasmons.By cont rolling the power of the pumping light,the enhanced modulation based on VO2thin film is demonstrated.

文献类型：Journal article (JA)

卷号：25

期号：7

页面范围：1248-1253

ISSN号：1005-0086

是否译文：否

CN号：12-1182/O4