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Birefringence of small apertures for shaping ultrashort pulses
Birefringence of small apertures ultrashort pulses Optics
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2012/4/27
For ultrashort pulses having different states of polarization, the experienced time delay when passing through small apertures is different. In the case of a small slit (or a circular aperture), we re...
Birefringence induced polarization-independent and nearly all-angle transparency through a metallic film
Birefringence polarization-independent all-angle
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2011/9/5
We propose an birefringence route to perfect electromagnetic (EM) wave tunneling through a metallic film which relies on homogeneous birefringent coatings with moderate and positive parameters only. E...
Cosmological Birefringence: an Astrophysical test of Fundamental Physics
Cosmological Birefringence Astrophysical test Fundamental Physics
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2010/12/21
We review the methods used to test for the existence of cosmological birefringence, i.e. a rotation of the plane of linear polarization for electromagnetic radiation traveling over cosmological distan...
Birefringence lens effects of atom ensemble enhanced by electromagnetically induced transparency
Birefringence lens effects of atom electromagnetically induced transparency
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2010/4/12
We study the optic control for birefringence of a polarized light by an atomic ensemble with a tripod configuration, which is mediated by the electromagnetically induced transparency with a spatially ...
Change of Birefringence in Dye-Doped Nematic Liquid Crystals Under Laser Illumination
Dye-doped liquid crystals Transmittance Birefringence Molecular reorientation
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2010/4/13
Birefringence property of E7 nematic liquid crystal is investigated via voltage dependent transmittance spectrums. Measurements are performed at wavelength 632.8 nm, which is the absorbance peak of ou...