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2019 Fiscal Year Research-status Report

Acute nose-on-a-chip based on mid-infrared graphene-on-silicon hybrid photonic-plasmonic waveguides

Research Project

Project/Area Number 18K13798
Research InstitutionThe University of Tokyo

Principal Investigator

CHENG Zhenzhou  東京大学, 大学院理学系研究科(理学部), 客員共同研究員 (50772092)

Project Period (FY) 2018-04-01 – 2021-03-31
Keywordsoptical gas sensors / silicon photonics / graphene
Outline of Annual Research Achievements

Based on our previous demonstrated chip-integrated mid-infrared high-Q resonator, in this fiscal year, I further studied a method to characterize gas mid-infrared microring resonator with a monochromatic laser for sensing applications. The method is expected to overcome the limitation of bulk and complex instruments for measuring mid-infrared microring resonators, furthermore paves the way for studying monochromatically chip-integrated cavities and their applications. The work is published in Journal of the Optical Society of America B. Also I designed an on-chip waveguide-edge integrated polarizer and a spatial mode filter based on graphene-on-silicon waveguides. These studies could help improve on-chip gas sensing systems and bring us more degrees of freedom to design on-chip gas sensors by optimizing polarization states and spatial mode distribution in waveguides. These studies have been published in Applied Physics Express and Optics Express, respectively. Moreover, under the support of the project, I carried out biomolecular sensing by using Raman spectroscopy. My labmates and I together developed a novel material for enhancing Raman signal and demonstrated some applications in chemical and protein sensing. This work is currently reviewed by Nature Photonics. Based on the above results, I have given three invited talks and presented one oral speech at international conferences.

Current Status of Research Progress
Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

In Phase II of the project, I have developed a new method to characterize mid-infrared photonic devices and designed some on-chip passive photonic devices for sensing applications. Now I am working on the development of the gas sensing setup which could be used for testing on-chip photonic devices under various gas environments. The design of the whole setup has been finished and some instruments are under fabrication. The budget is enough for my experiments.

Strategy for Future Research Activity

In Phase III of the project, I am planning to carry out my study in two aspects:
1.Work on the graphene-on-silicon photonic-plasmonic hybrid integrated circuits. I plan to fabricate the designed graphene-on-silicon photonic-plasmonic hybrid integrated circuits. Localized surface plasmonic resonance in graphene nanoribbons integrated on the silicon waveguides can be excited and measured via the in-plane configuration.
2.Work on gas sensing study. After finishing the experimental setup and graphene-on-silicon devices, I plan to carry out an on-chip optical gas sensing study and explore possible new mechanisms in graphene-silicon photonic-plasmonic hybrid sensors.

  • Research Products

    (7 results)

All 2020 2019

All Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (4 results) (of which Int'l Joint Research: 4 results,  Invited: 4 results)

  • [Journal Article] Characterization method of a mid-infrared graphene-on-silicon microring with a monochromatic laser2020

    • Author(s)
      Senmiao Han, Weicheng Chen, Haofeng Hu, Zhenzhou Cheng, and Tiegen Liu
    • Journal Title

      Journal of the Optical Society of America B

      Volume: Vol. 37, Issue 6 Pages: 1683-1688

    • DOI

      10.1364/JOSAB.391452

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Waveguide-integrated graphene spatial mode filters for on-chip mode-division multiplexing2019

    • Author(s)
      Z. Xing, C. Li, Y. Han, H. Hu, Z. Cheng, J. Wang and T. Liu
    • Journal Title

      Optics Express

      Volume: vol. 27, no.14 Pages: 19188-19195

    • DOI

      10.1364/OE.27.019188

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Design of on-chip polarizers based on graphene-on-silicon nanowires2019

    • Author(s)
      Z. Xing, C. Li, Y. Han, H. Hu, Z. Cheng and T. Liu
    • Journal Title

      Applied Physics Express

      Volume: vol. 12, no.7 Pages: -

    • DOI

      10.7567/1882-0786/ab235a

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Novel germanium platform for mid-infrared integrated optics2019

    • Author(s)
      Z. Cheng
    • Organizer
      Optoelectronics Global Conference (OGC), Shenzhen, China
    • Int'l Joint Research / Invited
  • [Presentation] Mid-infrared germanium photonics2019

    • Author(s)
      Z. Cheng
    • Organizer
      The 12th International Photonics and OptoElectronics Meetings (POEM 2019), Wuhan, China
    • Int'l Joint Research / Invited
  • [Presentation] Mid-infrared on-chip devices based on SOI and GOI technology2019

    • Author(s)
      Z. Cheng
    • Organizer
      The 18th International Conference on Optical Communications and Networks (ICOCN2019), Huangshan, China
    • Int'l Joint Research / Invited
  • [Presentation] Mid-infrared suspended membrane photonic integrated circuits2019

    • Author(s)
      Z. Cheng
    • Organizer
      Photonics & Electromagnetics Research Symposium (PIERS), Rome, Italy
    • Int'l Joint Research / Invited

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Published: 2021-01-27  

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