نتایج جستجو برای: index guiding
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fiber with a cladding index of refraction larger than that f the core is an index antiguiding (IAG) fiber. In such a ber total internal reflection at the core–cladding interace does not take place. Light generated in the core of the ber can leak out into the cladding of an IAG fiber, though t experiences some guiding by grazing angle reflection. here is some loss on each reflection, but if ther...
Fractional flow reserve (FFR) is a well-validated index for assessing the physiologic significance of a coronary stenosis in most clinical conditions encountered in today's catheterisation laboratory. The aim of this paper is to provide a short overview of the theoretical background of the coronary pressure-derived FFR index and its clinical applicability in guiding complex coronary interventio...
We present a new plasma-based method of guiding an electromagnetic pulse. The scheme consists of an inhomogeneous magnetic field and a uniform density plasma, in contrast to existing schemes that rely on transverse plasma density gradients but need not be magnetized. The refractive index of a magnetized plasma depends on the strength and direction of the magnetic field as well as the plasma den...
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