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KETI Develops 2D Image-Based Light Scattering Signal Analysis Technology

Google 우선 소스Published2017.07.06 09:57
Overcoming the limitations of conventional 1D photodetectors
Nanoparticle size analyzers currently on sale at half price through technology transfer


The Korea Electronics Technology Institute (KETI) announced that it has developed a 2D image-based light scattering signal analysis technology that can be used for nanoparticle analysis and other applications using a general-purpose light source and a digital camera.

Light scattering signal analysis technology is a core source technology that utilizes light scattering phenomena to measure nanoparticle size, optical material properties, inspect display devices, and characterize cells and biomaterials.

Previously, a point-based measurement method was used to detect light scattering signals generated by irradiating a laser at a specific angle using a one-dimensional photodetector. This was because it was difficult to physically interpret two-dimensional light scattering signals extracted at the plane level, and there were limitations in improving the signal-to-noise ratio (S/N ratio).
Conceptual diagram of existing and developed light scattering measuring devices

The source technology developed by Dr. Bumjin Yoon's research team at the KETI Display Materials & Components Research Center is based on the principle of measuring light scattering signals in two-dimensional real space using a digital camera and analyzing them using two-dimensional Fourier analysis techniques. It allows for the intuitive verification of changes in a sample through images and can overcome various limitations of one-dimensional analysis techniques that utilize inverse space.

This source technology was transferred to OnePosys with the support of the 'Nano Convergence 2020 Project Group,' jointly supported by the Ministry of Science, ICT and Future Planning and the Ministry of Trade, Industry and Energy, and has been on the market since the third quarter of last year at approximately half the price of existing nano-particle size analyzers.
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