Results 81 to 90 of about 176,774 (326)

A Terahertz Molecular Switch [PDF]

open access: yesPhysical Review Letters, 2003
4 pages, 5 figures. To appear in Phys.
Orellana P, Claro Huneeus, Francisco
openaire   +8 more sources

Viscoelasticity‐Induced Controllable Periodic Meso‐Textures of Liquid Crystal Polymers in Additive Manufacturing

open access: yesAdvanced Functional Materials, EarlyView.
Viscoelasticity‐driven instabilities are harnessed to create tunable, periodic textures in 3D‐printed liquid crystalline polymers. This study illustrates how processing parameters control these spontaneous meso‐scale patterns. These unique structural architectures unlock new possibilities for functional devices, ranging from photonic components to ...
Miaomiao Zou   +17 more
wiley   +1 more source

Nonlinear terahertz devices utilizing semiconducting plasmonic metamaterials

open access: yes, 2015
The development of responsive metamaterials has enabled the realization of compact tunable photonic devices capable of manipulating the amplitude, polarization, wave vector, and frequency of light. Integration of semiconductors into the active regions of
Averitt, Richard D.   +8 more
core   +1 more source

Spintronic terahertz emitters with integrated metallic terahertz cavities

open access: yesNanophotonics
Abstract Spintronic terahertz emitters (STEs), based on optical excitation of nanometer thick ferromagnetic/heavy metal (FM/HM) heterojunctions, have become important sources for the generation of terahertz (THz) pulses. However, the efficiency of the optical-to-THz conversion remains limited.
Mičica, Martin   +13 more
openaire   +5 more sources

Observation of Relativistic Domain Wall Motion in Amorphous Ferrimagnets

open access: yesAdvanced Functional Materials, EarlyView.
Domain walls in ferrimagnets and antiferromagnets move as relativistic sine‐Gordon solitons, with the spin‐wave velocity setting their speed limit. Such relativistic domain‐wall motion is demonstrated in amorphous GdFeCo near angular momentum compensation, where current‐driven walls reach 90% of the 2 kms−1 spin‐wave speed, enabling ultrafast, device ...
Pietro Diona   +3 more
wiley   +1 more source

Fermi volume evolution and crystal field excitations in heavy-fermion compounds probed by time-domain terahertz spectroscopy

open access: yes, 2019
We measure the quasiparticle weight in the heavy-fermion compound CeCu$_{6-x}$Au$_{x}$ ($x=0,\ 0.1$) by time-resolved THz spectroscopy for temperatures from 2 up to 300\,K.
Fiebig, Manfred   +6 more
core   +1 more source

Black Phosphorus Terahertz Photodetectors [PDF]

open access: yesAdvanced Materials, 2015
The discovery of graphene and the related fascinating capabilities have triggered an unprecedented interest in inorganic two-dimensional (2D) materials. Despite the impressive impact in a variety of photonic applications, the absence of energy gap has hampered its broader applicability in many optoelectronic devices.
Viti L   +6 more
openaire   +4 more sources

Rational Design of Printable Carbon Nanotube Transparent Conductive Films via Data‐Driven and Mechanistic Insights

open access: yesAdvanced Functional Materials, EarlyView.
A machine learning and simulation‐guided strategy is demonstrated for gentle, non‐sonication dispersion of carbon nanotubes, preserving structural integrity and performance. This approach enables transparent conductive films with low sheet resistance, high transmittance, and sub‐20 µm printability.
Ying Zhou   +7 more
wiley   +1 more source

Fluence and polarisation dependence of GaAs based Lateral Photo-Dember terahertz emitters

open access: yes, 2014
We characterise THz output of lateral photo-Dember (LPD) emitters based on semi-insulating (SI), unannealed and annealed low temperature grown (LTG) GaAs.
Apostolopoulos, V.   +6 more
core   +1 more source

Imprinting the complex dielectric permittivity of liquids into the spintronic terahertz emission [PDF]

open access: hybrid, 2021
Vasileios Balos   +4 more
openalex   +1 more source

Home - About - Disclaimer - Privacy