The N-slit interferometer: an extended configuration

Abstract

An N-slit interferometer is demonstrated with an intra-interferometric propagation path of up to 35 m. The configuration of the N-slit interferometer was extended to its maximum as allowed by the available grating, laser wavelength, and dimensions of the digital detector. Interferometric computations, based on the application of Dirac’s notation, were successfully used to predict the structure and divergence of the propagating interferograms. The high sensitivity of the interferometric signal to intra-path perturbations renders this instrument particularly suitable for detecting and registering clear air turbulence, and variations in the refractive index, in the propagation path.

Interpretational Issues in Quantum Mechanics

“…At D 1 the superposition of the diffraction signal over the interferometric distribution is beautifully predicted as illustrated in Figure 20.9. Previously, it was demonstrated that insertion of a conventional thin and highly transparent beam splitter into the intra-interferometric path led, as expected (see Chapter 11), immediately to a catastrophic collapse of the interferometric character or signal (Duarte, 2002(Duarte, , 2005Duarte et al, 2010). Furthermore, at D 3 , the silk fiber produces almost no disturbance when placed between slits and tends to only very slightly modify the whole interferometric distribution when positioned at the center of one of the slits (Figure 20.11).…”

Schrödinger’s Equation

“…This question can be answered empirically. Further, the effect of severe clear-air turbulence detected at D 〈x|j〉 = 7.235 m, for the c (N = 4) character, is shown in Figure 11.17 (Duarte et al, 2010). Now, by contrast we consider Figure 11.16 where the distortions due to mild clear-air turbulence detected at D 〈x|j〉 = 7.235 m, for the c (N = 4) character, are illustrated (Duarte, 2009).…”

“…The overall ruled area is 50 mm × 50 mm (Duarte et al, 2010). For instance, one of the gratings utilized has 570 μm slits separated by 570 μm isles, and the other grating has 1000 μm slits separated by 1000 μm isles.…”

“…Albeit its initial propagation distance in the laboratory was only 15 cm, it was envisioned as an interferometric tool ideally suited for propagation in the vacuum, or outer space (Duarte, 2002). Subsequently, NSLI experiments have also been conducted over hundreds of meters, in the field, via open atmosphere (Duarte et al, 2010(Duarte et al, , 2011.…”

N-slit interferometer for secure free-space optical communications: 527 m intra interferometric path length

“…Recently, we reported on an N-slit interferometer with an intra interferometric path length of 35 m [1].…”