Results 31 to 40 of about 18,247 (195)

Near-Field Observation of the Photonic Spin Hall Effect

open access: yesNano Letters, 2023
The photonic spin Hall effect, referring to the spatial separation of photons with opposite spins due to spin-orbit interactions, has enabled potential for various spin-sensitive applications and devices. Here, using scattering-type near-field scanning optical microscopy, we observe spin-orbit interactions introduced by a subwavelength semiring antenna
Martin Thomaschewski   +6 more
openaire   +3 more sources

Robust optical delay lines via topological protection [PDF]

open access: yes, 2011
Phenomena associated with topological properties of physical systems are naturally robust against perturbations. This robustness is exemplified by quantized conductance and edge state transport in the quantum Hall and quantum spin Hall effects.
A Kitaev   +52 more
core   +2 more sources

Spin-orbit interaction of light induced by transverse spin angular momentum engineering [PDF]

open access: yes, 2017
We report the first demonstration of a direct interaction between the extraordinary transverse spin angular momentum in evanescent waves and the intrinsic orbital angular momentum in optical vortex beams.
Chen, Yujie   +4 more
core   +6 more sources

Advances in Synthetic Gauge Fields for Light Through Dynamic Modulation [PDF]

open access: yes, 2018
Photons are weak particles that do not directly couple to magnetic fields. However, it is possible to generate a photonic gauge field by breaking reciprocity such that the phase of light depends on its direction of propagation.
Hey, Daniel, Li, Enbang
core   +3 more sources

Efficient metallic spintronic emitters of ultrabroadband terahertz radiation

open access: yes, 2016
Terahertz electromagnetic radiation is extremely useful for numerous applications such as imaging and spectroscopy. Therefore, it is highly desirable to have an efficient table-top emitter covering the 1-to-30-THz window whilst being driven by a low-cost,
Beaurepaire, E.   +20 more
core   +1 more source

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

open access: yesAdvanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu   +5 more
wiley   +1 more source

Photonic Analogue of Two-dimensional Topological Insulators and Helical One-Way Edge Transport in Bi-Anisotropic Metamaterials

open access: yes, 2012
Recent progress in understanding the topological properties of condensed matter has led to the discovery of time-reversal invariant topological insulators.
AA Zharov   +54 more
core   +1 more source

Unveiling the photonic spin Hall effect with asymmetric spin-dependent splitting

open access: yesOptics Express, 2016
The photonic spin Hall effect (SHE) manifests itself as the spin-dependent splitting of light beam. Usually, it shows a symmetric spin-dependent splitting, i.e., the left- and right-handed circularly polarized components are equally separated in position and intensity for linear polarization incidence.
Xinxing, Zhou, Xiaohui, Ling
openaire   +2 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

open access: yesAdvanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades   +7 more
wiley   +1 more source

Experimental Realization of a Reflections-Free Compact Delay Line Based on a Photonic Topological Insulator

open access: yes, 2016
Electromagnetic (EM) waves propagating through an inhomogeneous medium inevitably scatter whenever electromagnetic properties of the medium change on the scale of a single wavelength.
Anlage, Steven   +4 more
core   +2 more sources

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