We have demonstrated both interference and diffraction of a pseudo-double slit using two glass plates with a width and a length of about 5 cm and a thickness of about 5 mm. The plates are attached at the upper and lower ends with Scotch tape of about 0.1 to 0.3 mm between the plates. By adjusting the angle between the two plates, we are able to demonstrate a single-slit diffraction pattern or a double-slit interference pattern. Also we can simulate a changing separation between slits by changing the angle between the plates.
We have demonstrated both interference and diffraction of a pseudo-double slit using two glass plates with a width and a length of about 5 cm and a thickness of about 5 mm. The plates are attached at the upper and lower ends with Scotch tape of about 0.1 to 0.3 mm between the plates. By adjusting the angle between the two plates, we are able to demonstrate a single-slit diffraction pattern or a double-slit interference pattern. Also we can simulate a changing separation between slits by changing the angle between the plates.
The interference and the diffraction are two basic phenomena in physical optics. We have shown the phenomenon that, in the experiment of two slits with the certain angle between two slits, the partial interference pattern is embedded in the two diffraction patterns, namely, there is the partial interference + diffraction hybrid patterns. angle 2 slits Patterns angle 2 slits Patterns 00 30 60 120 180 240 300 360 420 450 In this article, we show that the nature and the characteristics of the patterns depend not only on the distance from the diaphragm, but also on the angle between two slits. Namely, when the angle between two slits varies from 00 to 450, the pattern varies from the interference pattern to the hybrid patterns (i.e., the partial interference pattern embedded in diffraction patterns) to the diffraction patterns. Challenge is to interpret consistently the hybrid patterns.
The interference and the diffraction are two basic phenomena in physical optics. It has been shown that: in the experiment of a double slit, the patterns depend on the shape of the double slit, e.g., a non-parallel double slit produces the hybrid pattern, the interference pattern embedded in the diffraction pattern; a curved double slit produces Point-Symmetry-Interference-Patterns. In Section 2, we show the pattern evolution of a curved-double slit experiment: near the curved double slit, the pattern is Pre-Particle pattern (at L = 10 mm), then evolve sequentially to Particle pattern (at L = 60 mm), to Transition pattern-1
The interference and the diffraction are two basic phenomena in physical optics. We have shown the phenomenon that, in the experiment of two slits with the certain angle between two slits, the partial interference pattern is embedded in the two diffraction patterns, namely, there is the partial interference + diffraction hybrid patterns. angle 2 slits Patterns angle 2 slits Patterns 00 30 60 120 180 240 300 360 420 450 In this article, we show that the nature and the characteristics of the patterns depend not only on the distance from the diaphragm, but also on the angle between two slits. Namely, when the angle between two slits varies from 00 to 450, the pattern varies from the interference pattern to the hybrid patterns (i.e., the partial interference pattern embedded in diffraction patterns) to the diffraction patterns. Challenge is to interpret consistently the hybrid patterns.
The interference and the diffraction are two basic phenomena in physical optics. It has been shown that: in the experiment of a double slit, the patterns depend on the shape of the double slit, e.g., a non-parallel double slit produces the hybrid pattern, the interference pattern embedded in the diffraction pattern; a curved double slit producing Two-Curved-Interference-Patterns of Point-Symmetry. In this paper, we show for the first time the pattern evolution of a curved double slit experiment: near the curved double slit, the pattern is Pre-Particle pattern (at L = 10 mm), then evolve sequentially to Particle pattern (at L = 60 mm), to Transition pattern-1 (at L = 130 mm), to One-curved-interference-pattern (at L = 200 mm), to Transition pattern-2 (at L = 400 mm), and finally, to Two-curved-interference-pattern (at L = 900 mm) which has the point symmetry. We interpret One-curved-interference-pattern (at L = 200 mm) in Section 3. It is challenge to interpret Two-curved-interference-pattern (at L = 900 mm) which have the point symmetry, and to interpret pattern evolution.
Young’s double slit experiment was called as "a phenomenon […] has in it the heart of quantum mechanics. In reality, it contains the only mystery. We cannot make the mystery go away by ‘explaining’ how it works". To study the mystery, we perform the non-crossing-slit-experiments and crossing-slit experiments and show phenomena: (1) in the same double slit or cross double slit experiments, the non-interference patterns gradually evolve to the interference patterns; (2) in the same single slit or cross single slit experiments, the non-diffraction patterns gradually evolve to the diffraction patterns; (3) in the same two-non-parallel-slits experiment, the non-wave patterns gradually evolve to the hybrid pattern (i.e., interference-pattern-embedded-in-diffraction-pattern); (4) in the same curved-double slit experiments, the non-interference patterns evolve to Seashell-shape interference patterns. The above phenomena show new mysteries that are more mysterious than that of the double slit experiments: it is challenge to consistently explain how they work. Those novel phenomena indicate that the standard theories of the double slit are incomplete. Novel experiments bring the search for the new theory of physical/quantum optics.
Young’s double slit experiment was called as "a phenomenon […] has in it the heart of quantum mechanics. In reality, it contains the only mystery. We cannot make the mystery go away by ‘explaining’ how it works". To study the mystery, we perform the non-crossing-slit-experiments and crossing-slit experiments and show phenomena: (1) in the same double slit or cross double slit experiments, the non-interference patterns gradually evolve to the interference patterns; (2) in the same single slit or cross single slit experiments, the non-diffraction patterns gradually evolve to the diffraction patterns; (3) in the same two-non-parallel-slits experiment, the non-wave patterns gradually evolve to the hybrid pattern (i.e., interference-pattern-embedded-in-diffraction-pattern); (4) in the same curved-double slit experiments, the non-interference patterns evolve to Seashell-shape interference patterns. The above phenomena show new mysteries that are more mysterious than that of the double slit experiments: it is challenge to consistently explain how they work. Those novel phenomena indicate that the standard theories of the double slit are incomplete. Novel experiments bring the search for the new theory of physical/quantum optics.