What are the Advantages of Using Evanescent Waves?
1. High Sensitivity: Evanescent waves are highly sensitive to changes occurring at the interface, making them ideal for detecting minute changes in surface chemistry.
2. Non-Invasive: Since evanescent waves do not propagate into the bulk of the medium, they provide a non-invasive means to study surface phenomena without significantly perturbing the system.
3. Spatial Resolution: The exponential decay of evanescent waves provides excellent spatial resolution, allowing for the investigation of surface processes at the nanometer scale.
