Development of Random Laser... Selected as Scientist of the Month for May

[Asia Economy Reporter Junho Hwang] Professor Hyunsoo Jeon of the Department of Physics and Astronomy at Seoul National University, who developed technology to control light at the 10 to 100 nanometer scale, was selected as the Scientist of the Month for May by the Ministry of Science and ICT on the 6th.

The Ministry of Science and ICT and the National Research Foundation of Korea stated that they highly evaluated Professor Jeon's achievement in elucidating the properties of disordered optical modes and developing random laser control technology, which is attracting attention as the next-generation laser, thereby expanding the horizon of nano-optics.

Random lasers are next-generation lasers that utilize the resonant modes of light (Anderson localization) spontaneously manifested inside disordered optical structures. Anderson localization refers to the phenomenon where, when light is incident on very fine powder, it undergoes severe scattering, yet small resonances at the wavelength scale of light occur even within such disorder.

Through experiments using a disordered photonic crystal platform that he directly designed and fabricated, Professor Jeon systematically demonstrated that Anderson localization can occur in disordered photonic systems and that its essence is the photonic band-tail mode.

Using this, he developed a laser (random laser) capable of controlling light at the nanometer scale. This laser is expected to create various functions as it transcends the structural simplicity of conventional lasers.

Professor Jeon said, "This achievement is the result of a full-cycle exploration from basic research on disordered optical media to the application potential of photonic device development," adding, "It deepens the physical understanding of disordered photonic structures and anticipates the emergence of extraordinary photonic devices that were previously impossible."

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