Optics --> Diffraction --> Diffraction Around Objects	Scroll Up Main Catalog Sroll Down Main Catalog
Arago's (or Poisson's) Spot O-c2a
The diffraction pattern from a laser beam shining on a small ball has a bright dot in the center of the shadow of the ball. Fishbane Chapter:   39.2 HRW 9th:   36.02 Reese Chapter:   24.5 SJ 3rd Chapter:   27.6 PIRA DCS classification:   6C20.10

---

Physics Lecture Demonstrations at the Department of Physics and Astronomy
The Johns Hopkins University