Clifford Shull used the neutron type of this concept to explore the structure of ice, and one model of this concept uses Rayleigh-Sommerfeld integrals. Used to explain an opal's play-of-color, the Laue (LOUW-uh) patterns produced by this effect on X-rays helped determine the shape of DNA. An Airy disk results when this principle occurs for a circular aperture, and Fresnel numbers less than one are indicative of its Fraunhofer (FROUN-hoh-fer) type. Generating interference patterns in Young's double-slit experiment, name 
Clifford Shull used the neutron type of this concept to explore the structure of ice, and one model of this concept uses Rayleigh-Sommerfeld integrals. Used to explain an opal's play-of-color, the Laue (LOUW-uh) patterns produced by this effect on X-rays helped determine the shape of DNA. An Airy disk results when this principle occurs for a circular aperture, and Fresnel numbers less than one are indicative of its Fraunhofer (FROUN-hoh-fer) type. Generating interference patterns in Young's double-slit experiment, name this principle, the bending or spreading of waves around an obstacle.
Clifford Shull used the neutron type of this concept to explore the structure of ice, and one model of this concept uses Rayleigh-Sommerfeld integrals.