Biophotonics Fundamentals

This lecture introduces the interdisciplinary field of biophotonics, which combines photonics and biology to study the interaction between light and biological matter. By integrating lasers, photonics, nanotechnology, and biotechnology, biophotonics offers promising applications in disease detection, treatment, and light-guided therapies. The lecture covers the nature of light, including its wave-particle duality, properties, generation, and speed measurement. It also explores concepts like Snell's Law, the history of measuring the speed of light, and the principles of geometrical optics. Additionally, it delves into the electromagnetic nature of light, wavelength, frequency, the electromagnetic spectrum, and human vision. The lecture concludes with discussions on color perception, additive and subtractive color mixing, and the behavior of light waves when interacting with objects.