Professor Sang-shin Lee from the Department of Electronic Engineering and his integrated master's and doctoral program student, Ju Suh, received the Best Paper Award at the 31st Conference on Optoelectronics and Optical Communications (COOC 2024), held from May 29 for three days.

At the conference, Student Ju Suh presented a paper titled “Wide Angle-Tolerant Retroreflector Based on All-Dielectric Metasurface in Visible Light,” showcasing a retroreflector structure with a wide-angle tolerance using a dielectric metasurface. The research was recognized for its potential and was conducted under the Ministry of Education-supported Science and Engineering Research Center program.

Retroreflectors are essential passive components in wireless optical communication systems that allow signals to be transmitted with low power. Traditional retroreflector structures are often unsuitable due to their relatively large weight and volume. To address this issue, the research proposed a lightweight, ultra-thin flat retroreflector structure using a metasurface, which operates efficiently at a wide incidence angle (±20°) in the visible light range (532 nm).

Professor Sang-shin Lee, who heads the "Nano Device Application Research Center," has published over 180 papers in leading SCI journals on topics including optical communication devices, nano-optical devices, and optical sensors. He is also actively researching key technologies related to the Fourth Industrial Revolution, such as silicon photonics-based LiDAR sensor modules for autonomous driving and wireless optical communication devices.

Kwangwoon University’s student Ju Suh (right) from Professor Sang-shin Lee’s research team receiving the Best Paper Award at the 31st Conference on Optoelectronics and Optical Communications.