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KAIST Aerospace Department Hosts Spectroscopy Technical Interchange Meeting (TIM)

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조회 275회 작성일 25-11-03 22:10

KAIST Aerospace Engineering – Space Testing and Payload Sensor Lab| November 3, 2025


The Department of Aerospace Engineering at KAIST hosted the Spectroscopy Technical Interchange Meeting (TIM) on November 3, 2025, uniting experts from KAIST (Korea), the University of Exeter (UK), and NASA (US). The event was organized by Professor Hyun Jung Kim, Principal Investigator of Space Testing and Payload Sensor Laboratory.

The hybrid meeting, held both at KAIST and online via Zoom, aimed to share research progress, address technical challenges, and strengthen international collaboration in next-generation spectroscopy


Invited Presentations

Dr. Calum Williams from the University of Exeter (UK) joined online to deliver his presentation titled “Colour by Design: Micro- and Nanostructured Photonics.”
Dr. Calum Williams is a Lecturer in the Department of Physics and a member of the Centre for Metamaterials Research and Innovation (CMRI). His research explores micro- and nanostructured photonic materials designed to revolutionize spectroscopic systems by reducing size, cost, and complexity while enhancing performance. His talk highlighted innovations in multicolour plasmonic holograms, multispectral filter arrays for biomedical imaging, and mid-infrared metamaterial filters for remote sensing applications.
Dr. Sang H. Choi, NASA Langley Research Center Scientist Emeritus and Distinguished Adjunct Professor at KAIST, delivered an in-person talk titled “Micro-Spectrometer for Space Applications.”
Dr. Choi is globally recognized for his pioneering contributions to advanced electronic and energetic materials, quantum and nano technologies, and space instrumentation. Over his 45-year career at NASA Langley Research Center, he has led groundbreaking projects in areas such as plasma switches, solar-pumped lasers, solar thermal rockets, quantum logic gates, nano-energetic propellants, bionano batteries, neural probes, and innovative spectroscopy devices.

He has produced 184 inventions, obtained 72 U.S. patents, and published over 230 technical papers. His scientific excellence has earned him 72 NASA awards, including the NASA Exceptional Service Medal (2021) and induction into the NASA Inventors Hall of Fame (2020). Dr. Choi has also received Nano50 Awards (2006–2008), the R&D 100 Award (2009), and the SOLAR Award (2010) for his pioneering innovations in bionano and aerospace technologies.

In his presentation, Dr. Choi introduced a Fresnel-based micro-spectrometer concept using circular ring gratings smaller than 1 mm in diameter, achieving over 200-fold optical path miniaturization. This novel design enables high-resolution spectral analysis for space, biomedical, and environmental sensing applications, opening new pathways for miniaturized spectroscopy.

Prof. Hyun Jung Kim  emphasized the importance of further collaborative research between KAIST and the University of Exeter, focusing on tunable miniaturized mid-infrared metasurface spectroscopy for space applications. 
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