2,633 research outputs found
Enhancement of the transverse non-reciprocal magneto-optical effect
The origin and properties of the transverse non-reciprocal magneto-optical
(nMO) effect were studied. The transverse nMO effect occurs in the case when
light propagates perpendicularly to the magnetic field. It was demonstrated
that light can experience the transverse nMO effect only when it propagates in
the vicinity of a boundary between two materials and the optical field at least
in one material is evanescent. The transverse nMO effect is pronounced in the
cases of surface plasmons and waveguiding modes. The magnitude of the
transverse nMO effect is comparable to or greater than the magnitude of the
longitudinal nMO effect. In the case of surface plasmons propagating at a
boundary between the transition metal and the dielectric it is possible to
magnify the transverse nMO effect and the magneto-optical figure-of-merit may
increase from a few percents to above 100%. The scalar dispersion relation,
which describes the transverse MO effect in cases of waveguide modes and
surface plasmons propagating in a multilayer MO slab, was derived
Influence of heat treatment on magnetic properties of Cu-Sn-Co-based materials produced by powder metallurgy
In the foundation of this work is the issue for production of non-magnetic materials with
predetermined weak magnetic properties. Preferable solution is to dope these materials with
ferromagnetic impurities in low concentrations. One of the efficient ways to obtain such materials is
the use of powder metallurgy which gives an opportunity to produce complex powder compositions
with variety of components in precisely specified concentrations
CAROTID CHEMODECTOMA: DIFFERENTIAL DIAGNOSIS ACCORDING TO ULTRASOUND DATA
Carotid chemodectoma (“chemodectoma caroticum”, a carotid glomus tumor) is a benign slow-growing, vascularized tumor that is one of the most common paragangliomas of the head and neck. The ultrasound examination of 18 000 patients referred for various reasons revealed 2 cases of carotid chemodectoma verified by angiography. The paper gives the current ideas of the rate, etiology, pathomorphology, and clinical manifestations of chemodectoma, as well as its major ultrasound differential diagnostic criteria
Intramolecular charge transfer with 1-tert-butyl-6-cyano-1,2,3,4-tetrahydroquinoline (NTC6) and other aminobenzonitriles. A comparison of experimental vapor phase spectra and crystal structures with calculations.
Issues in determining alpha_s from hadronic tau decay and electroproduction data
We discuss some key issues associated with duality-violating and
non-perturbative OPE contributions to the theoretical representations of light
quark current-current two-point functions and relevant to precision
determinations of alpha_s from hadronic tau decay and electroproduction
cross-section data. We demonstrate that analyses with an explicit
representation of duality-violating effects are required to bring theoretical
errors in such extractions under control, motivating the accompanying paper in
these proceedings, which presents the results of such an analysis.Comment: 5 pages, 4 figures. Prepared for the Proceedings of the International
Workshop on e+e- collisions from Phi to Psi (PHIPSI11), Sep. 19-22, 2011,
BINP, Novosibirsk, Russi
Evidence of phi --> pi0 pi0 gamma and phi --> pi0 eta gamma decays in SND experiment at VEPP-2M
Preliminary results on the study of e+e- --> phi(1020) --> pi0 pi0 gamma, eta
pi0 gamma processes from SND experiment at VEPP-2M collider in Novosibirsk are
presented. Branching ratios of rare radiative phi --> pi0 pi0 gamma and phi -->
pi0 eta gamma decays are measured:
B(phi --> pi0 pi0 gamma ) = (1.1 +- 0.2) * 10^-4
(invariant mass (pi0 pi0) < 800 MeV),
B(phi --> eta pi0 gamma ) = (1.3 +- 0.5) * 10^-4.Comment: Talk at the HADRON97 conference, BNL, Aug 24-30 1997; LaTeX, 4 pages,
4 eps figure
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