2023/06/20 by Jean-Felix Milette, Milette, Jean-Felix, Aidan Karmali +1
Engineering · #Electrowetting and Microfluidic Technologies #FOS: Physical sciences #Optics (physics.optics) #Semiconductor Lasers and Optical Devices #Surface Roughness and Optical Measurements
paper · pdf · doi:10.48550/arxiv.2306.11684
openalex publication_date 2023/06/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We verify the use of an evaporating sessile water droplet as a source of dynamic interference fringes in a Fizeau-like interferometer. Experimentally-obtained interference patterns are compared with those produced by a geometrical optics-based computational model to demonstrate the potential for classical optical theory to enhance the analysis of interfacial energetics. A detailed description of the process taken to optimize fringe visibility is presented, and a comparison is made between various droplet substrates. Silicon-based substrates appear to be superior than glass-based substrates in their ability to image a clear dynamic interference pattern.