We propose to measure the spin-dependent total cross section for circularly polarized photons absorbed on longitudinally polarized protons and neutrons in the photon energy range 2.5 < k < 5.5 GeV. This will be the first measurement of the difference between leftand right-handed polarized photoproduction above the resonance region. These data are needed to learn about the high energy convergenc...

We present a vector theory of four-wave mixing and use it to study the polarization-dependent nature of fourwave mixing and the conditions under which the gain of a dual-pump fiber-optic parametric amplifier becomes polarization independent. We find that in the absence of selfand cross-phase modulations, any pair of orthogonally polarized pumps can provide polarization-independent gain, but thi...

This paper presents the effect on circular polarization of multilayer circular annular ring patch (CARP). A CARP have been fabricated on FR4 substrate of dielectric constant 4.2 and thickness 1.52mm. Experimental resonant frequency impedance bandwidth and Axial ratio of simple CARP, covered CARP, spaced dielectric CARP and CARP with two superstrates have been measured and simulated using full w...

Traditionally, Atomic Beam Sources (ABSs) are used to produce targets of nuclear polarized Hydrogen (H) or Deuterium (D) for experiments using storage rings. Laser-Driven Sources (LDSs) o er a factor of 20-30 gain in the target thickness (however, with lower polarization) and may produce a higher overall gure of merit. The LDS is based on the technique of spin-exchange optical pumping where alk...

A polarized maser is assumed to operate in an anisotropic medium with natural modes polarized differently to the maser. It is shown that when the spatial growth rate and the generalized Faraday rotation rate are comparable, the polarization of the growing radiation is different from those of the maser and medium. In particular, for a lineary polarized maser operating in a medium with linearly p...

Novel chiral Er complexes based on both enantiomers of extended iPrPyBox (2,6-Bis[4-isopropyl-4,5-dihydrooxazol-2-yl)]pyridine) show strong near-infrared circularly polarized luminescence (CPL) within the 1400 to 1600 nm spectral region under 450 irradiation. CPL activity in this region, despite being particularly rare, would open way potential applications domain, e.g., fiber-optic telecommuni...

A new shaped circularly polarized dielectric resonator antenna (CP DRA) is studied with branch-line coupler and log-periodic balun for the GPS application. Since the coupler and balun are located under the DRA, it does not increase the footprint of the antenna, as a result the system is very compact. Two configurations are considered in this paper. In the first configuration, an external 50Ω lo...