Jiwan Kim

Postdoctoral Researcher, WAVE LAB @ KAIST

Ph.D. in Mechanical Engineering

I am a postdoctoral researcher at Wave Lab (KAIST), specializing in acoustic wave control technologies based on metamaterials for applications in future mobility systems (e.g., EVs and UAM), AI data-center power infrastructure (e.g., next-generation power transformers), advanced cooling and ventilation systems, and high-end electronics.

My research has focused on harnessing the potential of acoustic metamaterials to develop lightweight or deep-subwavelength structures capable of controlling various types of waves, including (but not limited to) sound, ultrasonic, and elastic waves.

You can explore the core of my research through my academic publications,
and see the full scope of my work—including projects, patents, and other achievements—in my CV.

✉️ jiwan.kim@kaist.ac.kr | Google Scholar | CV | LinkedIn

Research Interests

Deep Sub-Wavelength Acoustic Metasurfaces for Sound Absorption
- Near-perfect and broadband sound absorption in deep sub-wavelength thicknesses
- Nonplanar designs accounting for locally varying incidence angles along curved surfaces
- Mechanically tunable structures using asymmetric adjustable apertures for adaptive sound absorption
Lightweight Acoustic Metamaterials for Sound Insulation
- Lightweight meta-panels inducing negative effective material properties for low-frequency broadband sound insulation
- Computationally efficient theoretical frameworks for ultra-thin and ultra-lightweight designs
Complex-Valued Impedance Tailoring for Noise Reduction in Open Structures
- Complex-valued impedance tiles for noise suppression through structural openings while preserving heat and airflow exchange
Ventilated Acoustic Metamaterials for Noise Control under Flow Conditions
- Metaliners for noise insulation in ducts with non-uniform cross sections, maintaining high insertion loss across varying flow speeds

Education

Ph.D. in Mechanical Engineering
Korea Advanced Institute of Science and Technology (KAIST)
Mar. 2020 – Feb. 2025
Advisor: Prof. Wonju Jeon
M.S. in Mechanical Engineering
Korea Advanced Institute of Science and Technology (KAIST)
Mar. 2018 – Feb. 2020
Advisor: Prof. Wonju Jeon
B.S. in Mechanical Engineering
Korea Advanced Institute of Science and Technology (KAIST)
Mar. 2013 – Feb. 2018

Experience

Postdoctoral Researcher | Wave Lab, KAIST
Mar. 2025 – Present
Advisor: Prof. Wonju Jeon
Postdoctoral Researcher | InnoCORE POSEIDON Center, KAIST
May. 2026 – Present
Advisor: Prof. Joon Sang Kang

Research Support

InnoCORE Postdoctoral Fellowship, KAIST
May. 2026 – Present
Funding support for postdoctoral research at InnoCORE POSEIDON Center
Jang Young Sil Fellow Program, KAIST
May. 2025 – Apr. 2026
Funding support for postdoctoral research at KAIST

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