Publications

Journal articles, conference papers, and workshop presentations.

* Equal contribution.

2026

  1. Illustration of geometry sensitivity in an inverse-designed photonic splitter
    APL Engineering Physics Editor’s Pick

    Interpretable geometry sensitivity for inverse design of integrated photonics

    Junho Park*, Taehan Kim*, Mohammad Ali, and Di Liang
    APL Engineering Physics, 2026

    Integrated Gradients maps pixel-level geometry sensitivity in inverse-designed photonic devices, with experiments confirming that identified hotspots are more vulnerable to fabrication perturbations.

    DOI Paper
  2. Learned generative prior and sample silicon splitter layouts from the paper’s workflow figure
    IEEE Photonics Conference Oral

    A Generative Prior-Guided Faster Inverse Design Framework for High-Quality Integrated Photonics

    Junho Park*, Taehan Kim*, Mohammad Ali, SooHyuk Cho, and Di Liang
    In IEEE Photonics Conference (IPC), 2026

    Generative priors improve performance, manufacturability, and optimization speed in fabricated silicon power splitters.

    Conference PDF
  3. OPA-cleaned wavelength demultiplexer with red boxes identifying trimmed peripheral regions
    IEEE Photonics Conference Oral

    Solver-Native Adjoint Attribution for Trimming Inverse-Designed Photonic Layouts

    Junho Park*, Taehan Kim*, and Di Liang
    In IEEE Photonics Conference (IPC), 2026

    Solver-native attribution identifies low-impact silicon for trimming while preserving simulated optical performance.

    Conference PDF
  4. Learned generative prior and sample silicon splitter layouts, illustrated in the related IPC paper
    ICML · AI for Physics Poster

    Generative Priors Accelerate Inverse Design for Regularized, High Performance Integrated Photonics

    Taehan Kim, Junho Park, Mohammad Ali, SooHyuk Cho, and Di Liang
    In ICML Workshop on AI for Physics, 2026
    Paper
  5. CLEO Poster

    Interpretable Inverse Design of Integrated Photonic Components via Pixel-Level Sensitivity

    Junho Park*, Taehan Kim*, and Di Liang
    In Conference on Lasers and Electro-Optics (CLEO), 2026
    DOI Paper
  6. Scanning electron micrograph of a bottom-up-grown III-nitride photonic circuit with a grating-coupler inset
    CLEO

    Etch-Free Integrated III-Nitride Photonics via Bottom-Up Selective-Area Growth

    Minming He, Junho Park, Yifu Guo, Omar Alkhazragi, Jiangnan Liu, Liangqing Cui, Theodore Norris, Zetian Mi, and Di Liang
    In Conference on Lasers and Electro-Optics (CLEO), 2026

    Bottom-up selective-area growth creates GaN waveguides, microring resonators, and grating couplers with crystallographic sidewalls, avoiding plasma damage from conventional device etching.

    DOI Paper PDF

2025

  1. AAAI Workshop

    Towards Explainable Inverse Design for Photonics via Integrated Gradients

    Junho Park*, Taehan Kim*, and Sangdae Nam
    arXiv preprint arXiv:2510.22176, 2025
    Paper PDF

2024

  1. ACS Catalysis

    Importance of Site Diversity and Connectivity in Electrochemical CO Reduction on Cu

    Chansol Kim, Nitish Govindarajan, Sydney Hemenway, Junho Park, Anya Zoraster, Calton J Kong, Rajiv Ramanujam Prabhakar, Joel B Varley, Hee-Tae Jung, Christopher Hahn, and others
    ACS Catalysis, 2024
    Paper

2023

  1. Schematic of a multicolored light-emitting array for compressive spectroscopy

    Cropped from Fig. 1A, Wang et al., Science Advances (2023). CC BY-NC 4.0.

    Science Advances

    Highly multicolored light-emitting arrays for compressive spectroscopy

    Vivian Wang, Shiekh Zia Uddin, Junho Park, and Ali Javey
    Science Advances, 2023

    A chip with 49 individually addressable emission colors enables compact spectroscopy and spectral imaging through compressive reconstruction without diffractive optics.

    Paper

2021

  1. IEEE ICACI Oral

    Generating high-resolution climate change projections using super-resolution convolutional LSTM neural networks

    Christopher Chou, Junho Park, and Eric Chou
    In 2021 13th International Conference on Advanced Computational Intelligence (ICACI), 2021
    Paper
  2. IEEE IAEAC Oral

    Predicting stock closing price after COVID-19 based on sentiment analysis and LSTM

    Christopher Chou, Junho Park, and Eric Chou
    In 2021 IEEE 5th Advanced Information Technology, Electronic and Automation Control Conference (IAEAC), 2021
    Paper
  3. IEEE ICMIMT Oral

    An In-depth Study of Optimization of Glass-Epoxy Unidirectional Fiber-Reinforced Laminated Composites Under Mechanical Loading

    Junho Park and Christopher Chou
    In 2021 IEEE 12th International Conference on Mechanical and Intelligent Manufacturing Technologies (ICMIMT), 2021
    Paper

2020

  1. IEEE IEMENTech Best Paper Award

    Accuracy Analysis of Classical Lamination Theory and Finite Element Method for Fiber Reinforced Composites under Thermomechanical Loading

    Junho Park and Behnam Ahmadikia
    In 2020 4th International Conference on Electronics, Materials Engineering & Nano-Technology (IEMENTech), 2020
    Paper
  2. IEEE IREC Oral

    Investigation on Addition of Neodymium Magnets in Hydrometallurgical Citric Acid Leaching of Rare Metals from Spent Lithium-ion Cells

    Junho Park
    In 2020 11th International Renewable Energy Congress (IREC), 2020
    Paper