10/23(목) 전문가초청특강은 부산대학교의 이길주 교수님을 모시고 진행합니다.

관심있는 분들의 많은 참석 부탁드립니다.

ㅁ주제:  Next-generation Photonics and Optoelectronics for Future Applications

ㅁ일시: 10/23(목) 16:00

ㅁ장소: 제2종합연구동 83188호

ㅁ약력: 

ㅁ초록:

This presentation will provide a comprehensive overview of cutting-edge research in photonics and optoelectronics, aiming to address critical challenges in artificial intelligence, energy efficiency, high-performance computing, and hardware security through innovative, physics-based solutions. Our work spans four key domains, demonstrating a unified approach to creating the foundational hardware for the intelligent, efficient, and secure technologies of the future.
First, we draw inspiration from nature to develop advanced imaging systems for physical AI, such as robotics and autonomous vehicles. This includes a novel cuttlefish-eye-inspired camera that uses a W-shaped pupil and polarization-sensitive sensors to manage uneven illumination, significantly improving object detection confidence for safer navigation. Beyond vision, we address the critical energy challenges posed by these advanced systems through research into passive radiative cooling. We present highly durable, non-flammable ceramic-based materials that achieve sub-ambient cooling. This technology is extended to multifunctional coatings for vehicles that both provide passive cooling and enhance LiDAR retro-reflection for improved safety.
To overcome the fundamental data transmission limits known as the "interconnect wall" in modern AI data centers, our work focuses on developing key enabling technologies for advanced optical interconnects. A significant focus is on heterogeneous integration; we employ transfer printing techniques to precisely place high-performance III-V optoelectronic components, such as photodiodes, onto silicon-based photonic platforms. Furthermore, we are developing novel inverse-designed meta-grating couplers. These advanced components are crucial for efficiently coupling light between different layers of a photonic circuit or between the chip and optical fibers, paving the way for more complex systems. These foundational technologies are not only vital for the future of high-performance computing but also enable novel applications such as highly sensitive, on-chip biosensors.
Finally, as computational systems grow in complexity, securing them at the hardware level is paramount. We address post-quantum security threats using Physical Unclonable Functions (PUFs). Conventional optical PUFs often generate keys of a fixed length, which is inadequate for diverse IoT environments. Our PUF system creates a flexible, multi-level cryptographic key space by modulating optical parameters, allowing a single device to generate keys of varying lengths to establish a hierarchical security framework.