MERL - Mitsubishi Electric Research Laboratories

Chungwei Lin

Chungwei Lin
Chungwei's Quick Links

  • Biography

    Before joining MERL as a visiting member research staff, Chungwei was a postdoctoral researcher in the Physics Department of the University of Texas at Austin. He has worked on transition metal oxides including manganites and titanates. His particular interest is the use of doping/interface to control optical, thermal, and transport properties. In addition to oxides, he has worked on the theory of self-assembly, configuration interaction quantum impurity solvers, and the theory of photoemission spectroscopy.

  • Recent News & Events

    •  TALK    [MERL Seminar Series 2023] Prof. Mark Ku presents talk titled A beginner’s guide to quantum sensing illustrated with nitrogen vacancy centers in diamond
      Date & Time: Wednesday, May 17, 2023; 1:00 PM
      Speaker: Mark Ku, The University of Delaware
      MERL Host: Chungwei Lin
      Research Areas: Applied Physics, Computational Sensing
      Abstract
      • Quantum technology holds potential for revolutionizing how information is processed, transmitted, and acquired. While quantum computation and quantum communication have been among the well-known examples of quantum technology, it is increasingly recognized that quantum sensing is the application with the most potential for immediate wide-spread practical utilization. In this talk, I will provide an overview of the field of quantum sensing with nitrogen vacancy (NV) centers in diamond as a specific example. I will introduce the physical system of NV and describe some basic quantum sensing protocols. Then, I will present some state-of-the-art and examples where quantum sensors such as NV can accomplish what traditional sensors cannot. Lastly, I will discuss potential future directions in the area of NV quantum sensing.
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    •  NEWS    The Ab Initio paper selected as "HOT Physical Chemistry Chemical Physics article" and is made free to access the end of July 2019
      Date: June 12, 2019
      Where: Physical Chemistry Chemical Physics – Published 22 Feb 2019
      MERL Contact: Chungwei Lin
      Research Areas: Applied Physics, Multi-Physical Modeling
      Brief
      • The journal "Physical Chemistry Chemical Physics (PCCP)" selects a few well-received articles highlighted as HOT by the handling editor or referees. The following paper "Band Alignment in Quantum Wells from Automatically Tuned DFT+U" with MERL authors Grigory Kolesov, Chungwei Lin, Andrew Knyazev, Keisuke Kojima, Joseph Katz has been selected as a 2019 HOT Physical Chemistry Chemical Physics article, and is made free to access until the end of July 2019. This paper provides a semi-empirical methodology to compute the lattice and electronic structures of systems composed of 400+ atoms. The efficiency of this method allows for realistic simulations of interfaces between semiconductors, which is nearly impossible using the existing methods due to the extremely large degrees of freedom involved. The formalism is tested against a few established band alignments and then applied to determine the band gaps of quantum wells; the agreement is within the experimental uncertainty.
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  • Internships with Chungwei

    • EA2094: Imaging of nano-particle

      MERL is looking for interns for the project of magnetic particle imaging (https://www.mitsubishielectric.com/news/2023/pdf/0907-a.pdf). We expect the intern to (1) build a model that describes the magnetic particle imaging system; (2) implement a few existing reconstruction algorithms and identify their relative strengths; (3) (ideally) develop/identify the algorithm specific for the system, and/or suggest the measurement schemes for image reconstruction. Candidates are expected to have basic understanding of electromagnetic theory and solid skill of coding (Python and/or C++ and/or matlab). Students from physics, mathematics, electrical engineering or related fields are encouraged to apply.

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  • MERL Publications

    •  Lin, C., Ma, Y., Sels, D., "Asymptotic behavior of continuous weak measurement and its application to real-time parameter estimation", arXiv, November 2023.
      BibTeX arXiv
      • @article{Lin2023nov,
      • author = {Lin, Chungwei and Ma, Yanting and Sels, Dries},
      • title = {Asymptotic behavior of continuous weak measurement and its application to real-time parameter estimation},
      • journal = {arXiv},
      • year = 2023,
      • month = nov,
      • url = {https://arxiv.org/abs/2311.02066}
      • }
    •  Wang, Y., Lin, C., Fang, H., Takegami, T., "Reliability-based Sizing of Electric Propulsion System for Turboelectric Aircraft", IEEE Industrial Electronics Society (IECON), October 2023.
      BibTeX TR2023-129 PDF
      • @inproceedings{Wang2023oct,
      • author = {Wang, Yebin and Lin, Chungwei and Fang, Huazhen and Takegami, Tomoki},
      • title = {Reliability-based Sizing of Electric Propulsion System for Turboelectric Aircraft},
      • booktitle = {IEEE Industrial Electronics Society (IECON)},
      • year = 2023,
      • month = oct,
      • url = {https://www.merl.com/publications/TR2023-129}
      • }
    •  Lin, C., "Analytical Parametrization for Magnetization of Gadolinium based on Scaling Hypothesis", Physica A, DOI: 10.1016/​j.physa.2023.128686, Vol. 617, pp. 128686, April 2023.
      BibTeX TR2023-015 PDF
      • @article{Lin2023apr,
      • author = {Lin, Chungwei},
      • title = {Analytical Parametrization for Magnetization of Gadolinium based on Scaling Hypothesis},
      • journal = {Physica A},
      • year = 2023,
      • volume = 617,
      • pages = 128686,
      • month = apr,
      • doi = {10.1016/j.physa.2023.128686},
      • issn = {0378-4371},
      • url = {https://www.merl.com/publications/TR2023-015}
      • }
    •  Lin, C., "Magnetic Cooling with Thin Peltier Modules as Thermal Switches", Journal of Magnetism and Magnetic Materials, DOI: 10.1016/​j.jmmm.2023.170482, Vol. 570, pp. 170482, February 2023.
      BibTeX TR2023-006 PDF
      • @article{Lin2023feb,
      • author = {Lin, Chungwei},
      • title = {Magnetic Cooling with Thin Peltier Modules as Thermal Switches},
      • journal = {Journal of Magnetism and Magnetic Materials},
      • year = 2023,
      • volume = 570,
      • pages = 170482,
      • month = feb,
      • doi = {10.1016/j.jmmm.2023.170482},
      • issn = {0304-8853},
      • url = {https://www.merl.com/publications/TR2023-006}
      • }
    •  Wang, B., Lin, C., Inoue, H., Kanemaru, M., "Topological Data Analysis for Electric Motor Eccentricity Fault Detection", Annual Conference of the IEEE Industrial Electronics Society (IECON), DOI: 10.1109/​IECON49645.2022.9968912, October 2022, pp. 1-6.
      BibTeX TR2022-130 PDF
      • @inproceedings{Wang2022oct2,
      • author = {Wang, Bingnan and Lin, Chungwei and Inoue, Hiroshi and Kanemaru, Makoto},
      • title = {Topological Data Analysis for Electric Motor Eccentricity Fault Detection},
      • booktitle = {Annual Conference of the IEEE Industrial Electronics Society (IECON)},
      • year = 2022,
      • pages = {1--6},
      • month = oct,
      • doi = {10.1109/IECON49645.2022.9968912},
      • url = {https://www.merl.com/publications/TR2022-130}
      • }
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  • MERL Issued Patents

    • Title: "MAGNETIC PARTICLE IMAGING SYSTEM AND MAGNETIC PARTICLE IMAGING METHOD"
      Inventors: YAMAUCHI, Kazuki; Lin, Chungwei
      Patent No.: 11,733,324
      Issue Date: Aug 22, 2023
    • Title: "System and Method for Detecting a Fault of an Operation of a Synchronous Motor"
      Inventors: Lin, Chungwei; Wang, Bingnan; Nabi, Saleh
      Patent No.: 11,683,000
      Issue Date: Jun 20, 2023
    • Title: "Multi-Layer Axial and Radial flux Vernier Permanent Magnet Motor"
      Inventors: Zhou, Lei; Wang, Bingnan; Lin, Chungwei; Liu, Dehong; Wang, Yebin; Teo, Koon Hoo
      Patent No.: 11,502,564
      Issue Date: Nov 15, 2022
    • Title: "Method for Static Eccentricity Fault Detection of Induction Motors"
      Inventors: Zhou, Lei; Wang, Bingnan; Lin, Chungwei
      Patent No.: 11,411,521
      Issue Date: Aug 9, 2022
    • Title: "System and Method for Estimating Temperature and Heat Loss in Electric Motors"
      Inventors: Wang, Bingnan; Wang, Yebin; Ma, Tong; Lin, Chungwei; Komatsu, Taiga
      Patent No.: 11,293,986
      Issue Date: Apr 5, 2022
    • Title: "Method for Estimating Bearing Fault Severity for Induction Motors"
      Inventors: Wang, Bingnan; Zhang, Shen; Kanemaru, Makoto; Lin, Chungwei; Liu, Dehong; Teo, Koon Hoo
      Patent No.: 11,099,101
      Issue Date: Aug 24, 2021
    • Title: "Reference-Free Nonlinearity Correction for FMCW-Based Sensing Systems"
      Inventors: Wang, Pu; Millar, David; Lin, Chungwei; Parsons, Kieran; Orlik, Philip V.
      Patent No.: 10,969,465
      Issue Date: Apr 6, 2021
    • Title: "Virtual Inductors Using Ferroelectric Capacitance and the Fabrication Method Thereof"
      Inventors: Teo, Koon Hoo; Shen, Pin Chun; Lin, Chungwei
      Patent No.: 10,892,728
      Issue Date: Jan 12, 2021
    • Title: "Negative Electroluminescent Cooling Device"
      Inventors: Lin, Chungwei; Wang, Bingnan; Teo, Koon Hoo
      Patent No.: 10,840,163
      Issue Date: Nov 17, 2020
    • Title: "Optical Ring circuit with electrical filter"
      Inventors: Kojima, Keisuke; Teng, Min; Koike-Akino, Toshiaki; Lin, Chungwei; Parsons, Kieran; Gotoda, Mitsunobu; Akiyama, Koichi
      Patent No.: 10,838,282
      Issue Date: Nov 17, 2020
    • Title: "Low Power 2D Memory Transistor for Flexible Electronics and the Fabrication Methods Thereof"
      Inventors: Teo, Koon Hoo; Shen, Pin Chun; Lin, Chungwei
      Patent No.: 10,833,102
      Issue Date: Nov 10, 2020
    • Title: "Thermal Emitter for Energy Conversion Technical Field"
      Inventors: Wang, Bingnan; Lin, Chungwei; Wang, Jianjian; Teo, Koon Hoo
      Patent No.: 10,797,633
      Issue Date: Oct 6, 2020
    • Title: "Near-Field Based Thermoradiative Device"
      Inventors: Wang, Bingnan; Lin, Chungwei; Teo, Koon Hoo
      Patent No.: 10,658,968
      Issue Date: May 19, 2020
    • Title: "Thermophotovoltaic Energy Converter"
      Inventors: Lin, Chungwei; Wang, Bingnan; Teo, Koon Hoo
      Patent No.: 10,497,821
      Issue Date: Dec 3, 2019
    • Title: "Semiconductor Device with Multi-Function P-Type Diamond Gate"
      Inventors: Teo, Koon Hoo; Tang, Chenjie; Lin, Chungwei
      Patent No.: 9,780,181
      Issue Date: Oct 3, 2017
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