2018 Fiscal Year Research-status Report
Acute nose-on-a-chip based on mid-infrared graphene-on-silicon hybrid photonic-plasmonic waveguides
| Project/Area Number |
18K13798
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| Research Institution | The University of Tokyo |
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Principal Investigator |
CHENG Zhenzhou 東京大学, 大学院理学系研究科(理学部), 助教 (50772092)
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| Project Period (FY) |
2018-04-01 – 2021-03-31
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| Keywords | mid-infrared / silicon photonics / graphene photonics / germanium photonics |
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| Outline of Annual Research Achievements |
I have experimentally demonstrated a mid-infrared germanium nanocavity with a Q factor of 18,000, the highest-to-date of reported nanocavities across mid-infrared germanium-based integration platforms. This work is published in Photonics Research and listed as one of the top downloads in September 2018. Based on this result, I also has given two invited talks and four oral presentations in international conferences.
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| Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
In Phase I of the project, I have developed a novel mid-infrared germanium photonics integrated circuits for sensing applications. During this phase, all fabrication processes of mid-infrared photonic devices have been developed and optimized. Now, I am working on the fabrication of graphene-silicon photonic-plasmonic hybrid integrated circuits. Moreover, I have purchased all the necessary components in Phase I and am building up a setup for gas sensing applications. The budget is enough for my experiments.
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| Strategy for Future Research Activity |
In Phase II of the project, I am planning to carry out my study in two aspects:
(1)Work on the graphene-silicon photonic-plasmonic hybrid integrated circuits.
I plan to demonstrate the proposed graphene-silicon photonic-plasmonic hybrid integrated circuits. Localized surface plasmonic resonance in graphene will be excited and measured via in-plane light-matter interactions.
(2)Work on an experimental setup for gas sensing applications.
I plan to finish the experimental setup for gas sensing applications. On-chip absorption spectroscopy could be measured based on this setup.
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[Presentation] Mid-infrared high-Q germanium resonators2018
Author(s)
Zhenzhou Cheng, T. Xiao, Z. Zhao, W. Zhou, C. Chang, S. Set, M. Takenaka, H. K. Tsang and K. Goda
Organizer
Photonics West, San Francisco, USA, 2019
Int'l Joint Research
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[Presentation] Mid-infrared high-Q germanium photonic crystal cavity2018
Author(s)
Zhenzhou Cheng, T. Xiao, Z. Zhao, W. Zhou, C. Chang, S. Set, M. Takenaka, H. K. Tsang and K. Goda
Organizer
The 79th The Japanese Society of Applied Physics (JSAP) Autumn Meeting, Nagoya, Japan, 2018
