Introduction To Thin Film Optical Filters

Welcome to a guide on thin film interference filters. Here, we will explore the fundamental principles guiding their design and application. We will compare absorption filters and thin film interference filters, delving into their mechanisms and practical implications.

Absorption filters, such as colored glass and solar eclipse glasses, absorb light and convert its energy into heat. On the other hand, thin film interference filters manipulate light through reflection, using optical interference phenomena based on the wave nature of light.

We will dive deeper into the mechanics of thin film interference, examining its workings layer by layer, from single films to complex stacks. You'll discover how these filters selectively manipulate light wavelengths, creating precise optical responses for various applications.