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Proceedings Paper

2D materials for nanophotonic devices
Author(s): Renjing Xu; Jiong Yang; Shuang Zhang; Jiajie Pei; Yuerui Lu
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Paper Abstract

Two-dimensional (2D) materials have become very important building blocks for electronic, photonic, and phononic devices. The 2D material family has four key members, including the metallic graphene, transition metal dichalcogenide (TMD) layered semiconductors, semiconducting black phosphorous, and the insulating h-BN. Owing to the strong quantum confinements and defect-free surfaces, these atomically thin layers have offered us perfect platforms to investigate the interactions among photons, electrons and phonons. The unique interactions in these 2D materials are very important for both scientific research and application engineering. In this talk, I would like to briefly summarize and highlight the key findings, opportunities and challenges in this field. Next, I will introduce/highlight our recent achievements. We demonstrated atomically thin micro-lens and gratings using 2D MoS2, which is the thinnest optical component around the world. These devices are based on our discovery that the elastic light-matter interactions in highindex 2D materials is very strong. Also, I would like to introduce a new two-dimensional material phosphorene. Phosphorene has strongly anisotropic optical response, which creates 1D excitons in a 2D system. The strong confinement in phosphorene also enables the ultra-high trion (charged exciton) binding energies, which have been successfully measured in our experiments. Finally, I will briefly talk about the potential applications of 2D materials in energy harvesting.

Paper Details

Date Published: 22 December 2015
PDF: 7 pages
Proc. SPIE 9668, Micro+Nano Materials, Devices, and Systems, 966834 (22 December 2015); doi: 10.1117/12.2207750
Show Author Affiliations
Renjing Xu, The Australian National Univ. (Australia)
Jiong Yang, The Australian National Univ. (Australia)
Shuang Zhang, The Australian National Univ. (Australia)
Jiajie Pei, The Australian National Univ. (Australia)
Yuerui Lu, The Australian National Univ. (Australia)


Published in SPIE Proceedings Vol. 9668:
Micro+Nano Materials, Devices, and Systems
Benjamin J. Eggleton; Stefano Palomba, Editor(s)

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