eng Science and Education Publishing International Journal of Physics 2333-4576 2020-04-27 8 2 39 41 10.12691/ijp-8-2-1 IJP2020821 article Hui Peng Corresponding author: davidpeng1749@gmail.com Young¡¯s double-slit experiment had been performed over 200 years ago. Two- dimension cross-double-slit has been proposed recently. We report observations of two-dimension-cross-interference patterns created by two-dimension cross-double-slit apparatuses. http://pubs.sciepub.com/ijp/8/2/1/ijp-8-2-1.pdf double-slit experiment cross-double-slit experiment optics quantum mechanics