نتایج جستجو برای: circularly polarized
تعداد نتایج: 37671 فیلتر نتایج به سال:
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...
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...
We propose to investigate the possibility of Compton backscattering low energy laser pulses off the spent electron and positron beams at the International Linear Collider. The hot backscattered photons would then scatter off fixed targets for a rich variety of physics studies in a scheme dubbed BACKGAMMON, for BACKscattered GAMMas On Nucleons. The first objective would be to operate a heavy qua...
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