November 25 at 13:30 - 15:00, 2021 (JST)
Prof. Ryosuke Oketani (Assistant Professor, Physical Chemistry, Department of Chemistry, Faculty of Sciences, Kyushu University)
via Zoom

Optical microscopy is one of the sophisticated techniques to manipulate light based on well-established theories, as well as a powerful tool to observe living micro-organisms. The developments are still ongoing to overcome their limitations in observation. Recently, the invention of several super-resolution techniques has overcome the limit in spatial resolution caused by the wave nature of light.
In this presentation, I discuss the theories behind optical microscopy. My talk starts with basic wave optics to explain how a lens forms and magnifies an image in a conventional microscope. Then, I introduce laser scanning microscopy as an alternative form to the microscope. At last, as a recent development, I discuss several super-resolution techniques, which utilize interesting theory to improve spatial resolution.

*If you would like to participate, please contact Hidetoshi Taya.

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