Angle of incidence of minimum reflectance of a dielectric-conductor interface for incident unpolarized or circularly polarized light

2014 ◽  
Vol 53 (33) ◽  
pp. 7885 ◽  
Author(s):  
R. M. A. Azzam ◽  
A. Alsamman
Keyword(s):  
Polarized Light ◽  
Angle Of Incidence ◽  
Circularly Polarized Light ◽  
Circularly Polarized

scholarly journals Analysis of ellipsometric parameters in the reflection of circularly polarized light from a thin anisotropic plate

2021 ◽  
Vol 2094 (2) ◽  
pp. 022071
Author(s):  
V V Yatsyshen
Keyword(s):  
Anisotropic Plate ◽  
Plate Boundary ◽  
Polarized Light ◽  
High Sensitivity ◽  
Incident Radiation ◽  
Angle Of Incidence ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Left Handed ◽  
Reflected Light

Abstract The article presents the results of the analysis of the angular spectra of the ellipsometric parameters of the reflected wave when a circularly polarized light wave is incident on an anisotropic plate. The given dependences show a very high sensitivity of the ellipsometric parameters of the reflected light on the angle of incidence and the angle between the optical axis and the normal to the plate boundary. The energy reflection spectra themselves show much less variability when these parameters change. It should be especially emphasized the nature of the change in the ellipsometric angle Δ, which is responsible for the type of elliptical polarization - when Δ> 0, the polarization is left-handed, and when Δ <0, it is right-handed. It is shown that a thin anisotropic plate at certain angles can serve as a polarization converter of the incident radiation. The ellipsometry parameter ρ characterizes the degree of compression of the ellipse - when ρ = 1, the ellipse is transformed into a circle, and the light is circularly polarized in this case. Thus, a thin anisotropic plate can not only convert left-handed polarization to right-handed, but it can also control the very shape of the polarization ellipse. Such a plate can be used in conjunction with a layered medium, for example, a one-dimensional photonic crystal, to control the polarization of the incident circularly polarized light.

Differential polarization imaging of sickled cells

1988 ◽  
Vol 46 ◽  
pp. 62-63
Author(s):  
Marcos F. Maestre
Keyword(s):  
Optical Properties ◽  
Theoretical Approach ◽  
Polarized Light ◽  
Polarization Microscopy ◽  
Spectroscopic Techniques ◽  
Polarization Imaging ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Microscopic Scale ◽  
Chiral Structures

Recently we have developed a form of polarization microscopy that forms images using optical properties that have previously been limited to macroscopic samples. This has given us a new window into the distribution of structure on a microscopic scale. We have coined the name differential polarization microscopy to identify the images obtained that are due to certain polarization dependent effects. Differential polarization microscopy has its origins in various spectroscopic techniques that have been used to study longer range structures in solution as well as solids. The differential scattering of circularly polarized light has been shown to be dependent on the long range chiral order, both theoretically and experimentally. The same theoretical approach was used to show that images due to differential scattering of circularly polarized light will give images dependent on chiral structures. With large helices (greater than the wavelength of light) the pitch and radius of the helix could be measured directly from these images.

Blue Circularly Polarized Luminescent Amorphous Molecules with Single-handed Propeller Chirality Induced by Circularly Polarized Light Irradiation

2021 ◽  
Author(s):  
Zhaoming Zhang ◽  
Takunori Harada ◽  
Adriana Pietropaolo ◽  
Yuting Wang ◽  
Yue Wang ◽  
...  
Keyword(s):  
Polarized Light ◽  
Light Irradiation ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Trigonal Symmetry ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence

Preferred-handed propeller conformation was induced by circularly polarized light irradiation to three amorphous molecules with trigonal symmetry, and the molecules with induced chirality efficiently exhibited blue circularly polarized luminescence. In...

Direct Detection of Circularly Polarized Light Using Chiral Copper Chloride–Carbon Nanotube Heterostructures

ACS Nano ◽  
2021 ◽  
Author(s):  
Ji Hao ◽  
Haipeng Lu ◽  
Lingling Mao ◽  
Xihan Chen ◽  
Matthew C. Beard ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Direct Detection ◽  
Copper Chloride ◽  
Polarized Light ◽  
Circularly Polarized Light ◽  
Circularly Polarized

scholarly journals Lanthanide with PyBox ligands: a simple route to circularly polarized light emitters

ChemPhotoChem ◽  
2021 ◽  
Author(s):  
Lorenzo Arrico ◽  
Costanza Benetti ◽  
Lorenzo Di Bari
Keyword(s):  
Polarized Light ◽  
Light Emitters ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Simple Route

Omnidirectional narrow optical filters for circularly polarized light in a nanocomposite structurally chiral medium

2018 ◽  
Vol 57 (12) ◽  
pp. 3119 ◽  
Author(s):  
Carlos G. Avendaño ◽  
Laura O. Palomares
Keyword(s):  
Polarized Light ◽  
Optical Filters ◽  
Chiral Medium ◽  
Circularly Polarized Light ◽  
Circularly Polarized

scholarly journals Probing Excitation Delocalization in Supramolecular Chiral Stacks by Means of Circularly Polarized Light:  Experiment and Modeling [J. Am. Chem. Soc.2007,129, 7044−7054].

2007 ◽  
Vol 129 (51) ◽  
pp. 16278-16278 ◽  
Author(s):  
Frank C. Spano ◽  
Stefan C. J. Meskers ◽  
Emanuelle Hennebicq ◽  
David Beljonne
Keyword(s):  
Polarized Light ◽  
Circularly Polarized Light ◽  
Circularly Polarized

scholarly journals Design and Realization of a Compact Efficient Beam Combiner, Based on Liquid Crystal Pancharatnam–Berry Phase Gratings

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 220
Author(s):  
Boxuan Gao ◽  
Jeroen Beeckman ◽  
Kristiaan Neyts
Keyword(s):  
Liquid Crystal ◽  
Berry Phase ◽  
Polarized Light ◽  
Laser Beams ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Beam Combiner ◽  
High Diffraction Efficiency ◽  
High Diffraction ◽  
Crystal Mixture

We demonstrate a laser beam combiner based on four photo-patterned Pancharatnam–Berry (PB) phase gratings, which is compact and has high diffraction efficiency for incident circularly polarized light. The nematic liquid crystal mixture E7 is used as anisotropic material, and the thickness of the layer is controlled by spacers. The beam combiner can bring two parallel laser beams closer to each other while remaining parallel. This work shows the potential to realize components based on flat optical LC devices.

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