Interference of Waves

XU Hao-han

The interference of light wave is usually studied under the condition of taking the light wave as a kind of continuous wave. In fact, an atom produces a train of waves and deferent atoms produce deferent waves. Based on this,an analysis is made on the interference of light wave and the formulas of light interference are obtained.

Narciso N. Garcia, Arthur C. Damask

Tiberiu S. Tudor

The interference of two or more waves give rise, at intensity level, to another wave phenomenon, a second-order wave structure. The interference of different frequency waves is the frame in which this fact becomes most evident. A theoretical treatment of the interference of two homogeneous plane waves of different frequencies is given. The notion of amplitude wave is introduced. Ordinary interference and beating are discussed as special cases, in the frame of this general theory. Some experimental illustrations are given.

Hui Peng

Young’s double slit experiments revived the wave theory of light. The standard interpretation is that the light behaves as waves before and after passing through the double slit, and the superposition of waves produces the interference pattern. Feynman called the double slit experiment the only mystery in quantum mechanics. In this article, we experimentally show the novel universal phenomena: (1) within macro-distance from the diaphragm, the light rays behave as photons and produce non-interference patterns; while near the screen, the photons produce interference patterns; (2) The non-interference patterns evolve to the interference patterns gradually in the same classical wave experiment; (3) the light is photons before and after passing through the double slit; (4) The convex lens stops the further evolution. The experiments: (1) challenge the wave theories of the light; (2) violate both Bohr’s complementarity principle and wave particle duality; (3) provide profound phenomena for developing optics and for studying the nature of light; (4) suggest that a complete theory should be able to consistently interpret all phenomena, including the non-interference pattern, the interference pattern, and the evolution from the non-interference to the interference pattern in the wave experiment; (5) show a new mystery that photons, as particles, distribute as waves.

Thomas D. Rossing, Christopher J. Chiaverina