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14 March 2018 Chalcogenide glass-on-2D-materials photonics (Conference Presentation)
Hongtao Lin, Yi Song, Yizhong Huang, Derek Kita, Skylar Deckoff-Jones, Kaiqi Wang, Lan Li, Junying Li, Hanyu Zheng, Zhengqian Luo, Spencer Novak, Anupama Yadav, Chung-Che Huang, Haozhe Wang, Ren-Jye Shiue, Dirk Englund, Tian Gu, Daniel Hewak, Kathleen Richardson, Jing Kong, Juejun Hu
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Proceedings Volume 10537, Silicon Photonics XIII; 105370W (2018) https://doi.org/10.1117/12.2287588
Event: SPIE OPTO, 2018, San Francisco, California, United States
Abstract
Two-dimensional (2-D) materials are of tremendous interest to silicon photonics given their singular optical characteristics spanning light emission, modulation, saturable absorption, and nonlinear optics. To harness their optical properties, these atomically thin materials are usually attached onto prefabricated devices via a transfer process. Here we present a new route for 2-D material integration with silicon photonics. Central to this approach is the use of chalcogenide glass, a multifunctional material which can be directly deposited and patterned on a wide variety of 2-D materials and can simultaneously function as the light guiding medium, a gate dielectric, and a passivation layer for 2-D materials. Besides achieving improved fabrication yield and throughput compared to the traditional transfer process, our technique also enables unconventional multilayer device geometries optimally designed for enhancing light-matter interactions in the 2-D layers. Capitalizing on this facile integration method, we demonstrate a series of high-performance glass-on-graphene devices including ultra-broadband on-chip polarizers, energy-efficient thermo-optic switches, as well as mid-infrared (mid-IR) waveguide-integrated photodetectors and modulators based on graphene and black phosphorus.
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Hongtao Lin, Yi Song, Yizhong Huang, Derek Kita, Skylar Deckoff-Jones, Kaiqi Wang, Lan Li, Junying Li, Hanyu Zheng, Zhengqian Luo, Spencer Novak, Anupama Yadav, Chung-Che Huang, Haozhe Wang, Ren-Jye Shiue, Dirk Englund, Tian Gu, Daniel Hewak, Kathleen Richardson, Jing Kong, and Juejun Hu "Chalcogenide glass-on-2D-materials photonics (Conference Presentation)", Proc. SPIE 10537, Silicon Photonics XIII, 105370W (14 March 2018); https://doi.org/10.1117/12.2287588
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KEYWORDS
Mid-IR
Chalcogenide glass
Graphene
Phosphorus
Photonics
Silicon
Silicon photonics
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