Authors: V.V. Demjanov
More than hundred years the opinion persists
that Michelson interferometer can not detect aether wind by
effects of first order with respect to the ratio υ/c. Below there will be shown
that the degenerations of the interfer-ometer's sensitivity to effects of first order can be lifted
changing the traditional configurations of the device. My experiment demonstrated that a two-media
device operating at effects of first order can reliably measure the shift of the interference fringe
(and thus the speed of "aether wind"), and much more successfully than by Michelson interferometer
operating at effects of second order. Unlike in the traditional approach, in the interferometer of
first order light rays (after splitting at semi-transparent plate) propagate in both orthogonal arms
to rebounding mirrors in a one optical medium (with the dielectric permittivity
ε1), and return after reflection to a plate re-uniting them for
interference via another medium (with the dielectric permittivity ε2).
The shift of interference fringe is reliably registered (in rotation of the interferometer by
90o) even at gas light carrying pairs with arm's length up to 1 m. With this
the fringe shift appears to be proportional to υ/c and difference
The experimental findings have been interpreted basing on classical scheme of ray optics by two methods: 1) with the Fresnel model of dragging light by moving optical medium neglecting terms quadratic in υ/c (including the Lorentz contraction of the longitudinal to v arm as quadratic with respect to υ/c), 2) with the classical theory of the frequency dispersion of moving dielectric media, supplemented by the accounting classical and relativistic Doppler effects describing translatory motion (with velocity v) of particles of interferometer light carriers in aether. From observations of the fringe shift on the interferometer of first order with respect to υ/c there was found (at the latitude of Obninsk) the change of the horizontal projection of the Earth's velocity relative to luminiferous aether in the limits 140<υ<480 km/s depending on the local time of the day and night.
Comments: 11 pages
[v1] 24 Jul 2010
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