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Developing ultrathin light emitters and metalenses based on Van der Waals materials
Author(s): Chang-Hua Liu; Jiajiu Zheng; Shane Colburn; Genevieve Clark; Taylor Fryett; Yueyang Chen; Xiaodong Xu; Arka Majumdar
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Paper Abstract

The recent advent of van der Waals (vdW) crystals are considered as a new class of material for optoelectronics or photonics applications, as they have a wide range of optical band gap energies and electrical transport properties. Furthermore, due to the nature of vdW interactions, these vdW materials can be transferred onto different substrates, making them a promising candidate for integrated photonics applications. Here, we will exploit these unique properties and describe how to realize ultrathin and integrable light sources, based on photonic crystal cavities integrated van der Waals light emitters. Our demonstrated device can be operated at room temperature with fast modulation speed and enhanced emission intensity. Additionally, we will show ultrathin (~0.14 λ) van der Waals metalenses, which not only can exhibit near diffraction-limited focusing and imaging, but also can be transferred onto flexible substrates to show strain- induced tunable focusing.

Paper Details

Date Published: 27 February 2019
PDF: 6 pages
Proc. SPIE 10920, 2D Photonic Materials and Devices II, 1092005 (27 February 2019); doi: 10.1117/12.2508713
Show Author Affiliations
Chang-Hua Liu, National Tsing Hua Univ. (Taiwan)
Univ. of Washington (United States)
Jiajiu Zheng, Univ. of Washington (United States)
Shane Colburn, Univ. of Washington (United States)
Genevieve Clark, Univ. of Washington (United States)
Taylor Fryett, Univ. of Washington (United States)
Yueyang Chen, Univ. of Washington (United States)
Xiaodong Xu, Univ. of Washington (United States)
Arka Majumdar, Univ. of Washington (United States)

Published in SPIE Proceedings Vol. 10920:
2D Photonic Materials and Devices II
Arka Majumdar; Carlos M. Torres Jr.; Hui Deng, Editor(s)

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