نتایج جستجو برای: element circularly polarized
تعداد نتایج: 240627 فیلتر نتایج به سال:
We provide the first experimental demonstration of the handedness dependent electromagnetically induced transparency (EIT) in chiral metamaterials during the interaction with circularly polarized waves. The observed chiral-sensitive EIT phenomena arise from the coherent excitation of a non-radiative mode in the component split ring resonators (SRRs) produced by the corresponding Born-Kuhn type ...
We generate angularly isolated beams of circularly polarized extreme ultraviolet light through the first implementation of non-collinear high harmonic generation with circularly polarized driving lasers. This non-collinear technique offers numerous advantages over previous methods, including the generation of higher photon energies, the separation of the harmonics from the pump beam, the produc...
We demonstrate that twisting one part of a chiral photonic structure about its helical axis produces a single circularly polarized localized mode that gives rise to an anomalous crossover in propagation. Up to a crossover thickness, this defect results in a peak in transmission and exponential scaling of the linewidth for a circularly polarized wave with the same handedness as structure. Above ...
We have investigated the polarization of attosecond light pulses generated from relativistic few-cycle laser pulse interaction with the surface of overdense plasmas using particle-in-cell simulation. Under suitable conditions, a desired polarization state of the generated attosecond pulse can be achieved by controlling the polarization of the incident laser. In particular, an elliptically polar...
Introduction Circular dichroism (CD) is the most widely used form of chiroptical spectroscopy, spectroscopic techniques that utilize the differential interaction of molecules with left− and right−circularly polarized light. In the absence of a magnetic field, the molecule must be chiral to give rise to a difference in the interaction with the two types of circularly polarized light. The phenome...
The microstrip antenna is one of the best antenna structures, due to its low cost and compact design. In this paper, a coaxial feed circularly polarized square patch antenna is designed using the U-slot. The proposed antenna is suited for the RFID readers in the SHF band. This structure of antenna of FR4 substrate (dielectric constant = 3.5), is capable to cover the range of frequency of 2.4 to...
We present, experimentally and theoretically, a polymer material system that supports optical spatial solitons of circular polarization. We demonstrate one-dimensional circularly polarized dark solitons supported by photoisomerization nonlinearity in a bulk polymer.
In this experiment, we propagate superposed 800 nm and 400 nm circularly polarized driving laser fields and interact the combined field with argon gas—in doing so, we demonstrate strong field ionization from this interaction. We then use velocity map imaging and tomographic reconstruction techniques to look at the resulting photoelectron angular distributions. From this, we discover that if the...
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