Peng, H. 2025. Double-slit, Comprehensive-Double-Slit and Irregular-Double-Slit Experiments Showing That Light is Photons and It is Photons That Produce both Non-Interference Patterns and Interference Patterns in Same Experiment : PhotoWave Phenomena and Optics-Butterfly-Effect. European Journal of Applied Sciences. 13, 04 (Aug. 2025), 243–270. DOI:https://doi.org/10.14738/aivp.1304.19225.