Abstract:
When we look through a microscope, it is tempting to think we are seeing the sample exactly as it is. In reality, every microscope image is a measurement. Before light reaches the detector, it is shaped by the light source, lenses, sample itself, and by the detector. Each of these steps leaves its mark on the final image. Understanding them is the key to reading images correctly, and to turning them into reliable information about the specimen. This talk follows the journey of light through a microscope and then shows how two powerful techniques, quantitative phase microscopy and fluorescence microscopy, use this understanding to measure what we cannot see by eye.
Biography:
Vishesh Kumar Dubey is a researcher in optical microscopy and biomedical imaging. He holds a PhD in Optics and Photonics from IIT Delhi and has expertise in quantitative phase imaging, refractive index tomography, fluorescence, and super-resolution microscopy. His research focuses on developing advanced, label-free, and multimodal imaging techniques for biomedical applications.
Cake and coffee/tea is served from 12.00 to 12.15. The talk starts shortly after.