Epsilon-near-zero-slot waveguides and their applications in ultrafast laser beam steering

Kaifeng Shi; Wangshi Zhao; Zhaolin Lu

doi:10.1117/12.2041945

7 March 2014 Epsilon-near-zero-slot waveguides and their applications in ultrafast laser beam steering

Kaifeng Shi, Wangshi Zhao, Zhaolin Lu

Proceedings Volume 8980, Physics and Simulation of Optoelectronic Devices XXII; 89800L (2014) https://doi.org/10.1117/12.2041945
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

Recent research on epsilon-near-zero (or index-near-zero) materials has revealed their promising applications in optoelectronics. We explore a novel waveguide structure, namely “epsilon-near-zero-slot waveguide”, by utilizing transparent conducting oxides as the active medium, which can be tuned between epsilon-near-zero and epsilon-farfrom- zero by accumulation carriers, resulting in sharp effective index change. We propose laser beam steering by taking advantage of this epsilon-near-zero-slot waveguide structure. With about 60°steering angle being achieved, this waveguide structure has the advantages of ultra high speed and compact dimension, as well as easy fabrication.

Citation Download Citation

Kaifeng Shi, Wangshi Zhao, and Zhaolin Lu "Epsilon-near-zero-slot waveguides and their applications in ultrafast laser beam steering", Proc. SPIE 8980, Physics and Simulation of Optoelectronic Devices XXII, 89800L (7 March 2014); https://doi.org/10.1117/12.2041945

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