Vibroacoustic Metastructure Lab

2025-12-15

VAMS Lab has initiated a collaborative research project with LG Electronics on high-power ultrasonic transducers. We look forward to making great progress together. Let's make it success, Team !!!

2025-12-12

We participated in KSME Fall 2025 Conference (for the first time!) presenting the following works:

Hoseok: Miniaturized Piezoelectric Composite Resonator Designs with Mode-Coupling Suppression for Side-Firing Ultrasonic Transmission 

Sungmin: Photopolymer-Based Head Mass Tonpilz Transducer Designs for Seamless Metastructure Integration

Jinwook: 3D Acoustic Hologram System: Design and Applications

Great job to everyone involved. Well done, team!

2025-12-4

Hoseok and Sungmin received Best Presentation Awards at the Acoustical Society of Korea 2025 Fall Meeting in Yeosu. Congratulations!!

2025-11-28

VAMS Lab team presented our works in Autumn Annual Conference of Korean Society of Noise and Vibration Engineering (KSNVE)! Good job folks!
Hoseok: Mode-Coupling Suppression in Miniaturized Resonators using 1-3 Piezocomposite

Sungmin: High-Power Ultrasonic Tonpilz Transducer with Photopolymer-Based Head Mass for Metastructure Application

Juwon: Characterization of Metastructured Waveguides Using Acoustic Field Measurements with a 40 kHz Commercial Ultrasonic Sensor

Haesu: Acoustic Characterization of 3D-Printed Polymers for Acoustic Hologram Applications

Sanghun: Comparison of Acoustic Characteristics of Sound Transducers with Different Radiation Geometries Using an Angular Spectrum Method

Seunghyeon: Analysis of Radiation Characteristics According to the Ring Width, Spacing, and Size of an Annular Array Transducer

Dongheon: Design of an Acoustic Diode for the Backing Layer in Sub-1-MHz Ultrasonic Pulse Transducers

2025-11-21

Haseeb has successfully defended his Master’s thesis, “Hybrid Numerical and Artificial Intelligence Frameworks for High-Fidelity Acoustic Hologram Reconstruction.” Congratulations, Haseeb Khan (M.S.)!

2025-11-20

Hoseok and Sungmin presented our research at the Fall 2025 Meeting of the Acoustical Society of Korea in Yeosu. Hoseok presented the poster “Effect of Lens Material Properties on Acoustic Hologram Patterns and Multifocal Focusing Efficiency,” and Sungmin presented his work, “Design of Miniaturized Piezoelectric Tonpilz Transducers Using 3D-Printed Photopolymer Components.” Great work, both of you!  

2025-11-18

Jinwook was invited to Chonnam National University (CNU) in Yeosu to deliver a seminar titled “Spatiotemporally Controlled Ultrasonic Energy Delivery Techniques for High-Precision Ultrasound Therapies.”

2025-11-13

Professor Xiaoning Jiang (Dean F. Duncan Distinguished Professor, NC State University) visited VAMS Lab and Kyungpook National University. He delivered an invited talk titled “Wearable Ultrasound Transducers for Blood Pressure Sensing, Assistive Robots, and Neural Stimulation,” and enjoyed his time in Korea reconnecting with his former students—now faculty members in Korea 😁 Thank you, Dr. Jiang!

2025-11-7

VAMS Lab participated in the 11th Annual Symposium of the Korean Society for Therapeutic Ultrasound (KSTU), held at the Global Plaza of Kyungpook National University. Haseeb presented our work titled “Synergistic Cavitation Dynamics of Microbubble–Nanodroplet Mixtures under Therapeutic Ultrasound,” and Jinwook also presented his recently published research, receiving the Outstanding Paper Award. Hoseok, Sungmin, Juwon, Haesu, Wooseong, and Jonghun contributed to the conference as staff members—great job, everyone!

2025-9-26

Double Awards!! 🎉🎉

Seongmo, Daehyuk, Changwon, and Doyeob won double awards at 2025 Creative Capstone Design Competition with the projects: 1) Caster-Angle-Controllable Adaptive Mini UGV and 2) Nd-Based Cost-Efficient Active Suspension Design. Congratulations x2 !! 

2025-9-17

Haseeb and Jinwook attended the 2025 IEEE International Ultrasonics Symposium (IUS2025) in Utrecht, Netherlands. Haseeb presented his work "High-Fidelity and Real-Time Acoustic Holography Using Physics-Guided Hybrid Neural Architectures" at the ultrasonic transducer lecture session. Great job, Haseeb! 

Jinwook served as the session co-chair for TMU: Piezoelectric Micromachined Ultrasonic Transducers: Novel Materials & Structures Session.

2025-9-15

VAMS Lab initiated a new 1-year, NRF-funded research project, "Development of Acoustic Hologram-Based 3D Multifocal Ultrasonic Energy Delivery Platforms for Non-Contact Control of Implantable Actuators. " We look forward to making great progress together in therapeutic ultrasound! 

2025-9-12

A new Undergraduate Research Assistant, Wooseong  joined the team! Welcome to VAMS Lab!

2025-8-4

Seonguk joined the team as an Undergraduate Research Assistant! Welcome on board!

2025-7-7

Haseeb presented his work "Small Data-Driven Machine Learning Approach for Rapid Acoustic Hologram Design" at the 31st International Congress on Sound and Vibration (ICSV31) in Incheon. Well done, Haseeb!

2025-6-16

The team presented their research at the 16th International Conference on Ultrasound Engineering for Biomedical Applications (IC-UEBA 2025). Haseeb showcased his work titled "Wavelength Dependency in Pressure Field Reconstruction Using Acoustic Holograms," while Jinwook presented "Enhancing Ultrasound Cavitation Through Microbubble–Nanodroplet Integration."

2025-5-22

Jinwook presented the acoustic hologram work with the title “Analysis of Spatial Resolution with Frequency Variation in Acoustic Field Control Using Acoustic Holograms” at Korean Society for Noise and Vibration Engineering (KSNVE) Conference. 

2025-5-8

Jinwook was invited to present at the 56th Annual Congress of the Korean Society of Ultrasound in Medicine (KSUM 2025), where he delivered a talk titled “Customized Ultrasonic Devices and Techniques for Cavitation-Assisted Sonothrombolysis.”

2025-2-28

Congratulations to the undergraduate authors, Jonghun, Nagwon, Minjun, and Gyumin! Their paper with the design competition winning topic, "Development of an Injury Prevention System for Nail Guns Using Commercial RF Position Sensors," has been accepted in the Korean Society of Mechanical Engineering (KSME). The article is set to be published in September 2025. Well done, folks!

2024-12-30

Jonghun (이종훈) joined the team as an Undergraduate Research Assistant! Welcome to the team!

2024-11-23

Jinwook had an invited talk with the title "Cavitation-Enhanced Sonothrombolysis Techniques for Venous Thromboembolism," at the 10th Annual Symposium of The Korean Society for Therapeutic Ultrasound (KSTU).

2024-09-13

Seunghyeon (이승현) joined the team as an Undergraduate Research Assistant! Welcome to the team!

2024-08-20

Dongheon (조동헌) and Doyoon (김도윤) joined the team as an Undergraduate Research Assistant! Welcome on board, guys! 

2024-08-05

Seok (최석) joined the team as an Undergraduate Research Assistant! Welcome to the team! 

2024-07-29

A new Research Assistant, Haseeb and a Undergraduate Research Assistant, Jaehee (서재희) joined the team, welcome on board guys! 

2024-07-11

New Undergraduate Research Assistants, Junwon (강주원) and Hoseok (강호석), joined the team! Welcome on board, guys! 

2024-07-08

Jinwoo (김진우), Sanghun (여상훈), and Sangyun (이상윤) joined the team as an Undergraduate Research Assistant! Welcome on board, folks! 

2024-06-20

New paper online! https://doi.org/10.1016/j.eng.2024.03.021 

2024-06-12 

We will present our works, "Acoustic Metastructure-Lensed Multi-Focal Sonicator Designs for High-Throughput Therapeutic Ultrasound Testing in Vitro" and "Multiphysics Simulation of Acoustic Hologram-Lensed Piezoelectric Ultrasound Transducers" at IEEE UFFC Joint Symposium held in Taipei, Taiwan, Sep. 22-26, 2024.