Results 31 to 40 of about 289,380 (345)

Classical and quantum anisotropic Heisenberg antiferromagnets [PDF]

open access: yes, 2009
We study classical and quantum Heisenberg antiferromagnets with exchange anisotropy of XXZ-type and crystal field single-ion terms of quadratic and cubic form in a field.
Bannasch, G.   +5 more
core   +4 more sources

Achromatic diffractive liquid-crystal optics for virtual reality displays

open access: yesLight: Science & Applications, 2023
Diffractive liquid-crystal optics is a promising optical element for virtual reality (VR) and mixed reality as it provides an ultrathin formfactor and lightweight for human factors and ergonomics.
Zhenyi Luo   +4 more
doaj   +1 more source

Effect of Ordering on Spinodal Decomposition of Liquid-Crystal/Polymer Mixtures

open access: yes, 1998
Partially phase-separated liquid-crystal/polymer dispersions display highly fibrillar domain morphologies that are dramatically different from the typical structures found in isotropic mixtures.
A. Onuki   +25 more
core   +1 more source

7.2% efficient polycrystalline silicon photoelectrode [PDF]

open access: yes, 1984
After etching, n-type cast polycrystalline silicon photoanodes immersed in a solution of methanol and a substituted ferrocene reagent exhibit photoelectrode efficiencies of 7.2%±0.7% under simulated AM2 illumination.
Cogan, George W.   +3 more
core   +1 more source

High-efficiency terahertz third harmonic generation from quasi-bound states in the continuum in permittivity-asymmetric hybrid metasurface

open access: yesEPJ Applied Metamaterials
Optical resonators with high quality (Q) factors are highly desirable in meta-optic and nanophotonic fields. Recently, bound states in the continuum (BIC) have emerged as a pivotal solution to enhance the Q factors of optical resonators to theoretically ...
Sun Guangcheng   +10 more
doaj   +1 more source

Synthesis of Perovskite Nanocrystals and Their Photon-Emission Application in Conjunction With Liquid Crystals

open access: yesFrontiers in Chemistry, 2020
Perovskite nanocrystals have attracted worldwide attention due to their outstanding optical versatility, high photoluminescence quantum yields, and facile synthesis.
Weixi Lin   +13 more
doaj   +1 more source

Generation of Generalized-Gauss Laser Beams via a Spatial Light Modulator [PDF]

open access: yes, 2018
Generalized-Gauss laser beams can be described as a continuous transition between the well-known Hermite-Gauss (HG) and Laguerre-Gauss (LG) laser beams.
Conry Young, Jessica P, Dix, Samantha
core   +3 more sources

IR Sensor Synchronizing Active Shutter Glasses for 3D HDTV with Flexible Liquid Crystal Lenses

open access: yesSensors, 2013
IR sensor synchronizing active shutter glasses for three-dimensional high definition television (3D HDTV) were developed using a flexible liquid crystal (FLC) lens. The FLC lens was made on a polycarbonate (PC) substrate using conventional liquid crystal
Jeong In Han
doaj   +1 more source

Optical correlation by use of partial phase-only modulation with VGA liquid-crystal displays [PDF]

open access: yes, 2012
The development of liquid-crystal panels for use in commercial equipment has been aimed at improving the pixel resolution and the display efficiency. These improvements have led to a reduction in the thickness of such devices, among other outcomes, that ...
Carnicer González, Arturo   +4 more
core   +2 more sources

Multifunctional zinc-ion capacitors for energy storage

open access: yesCommunications Materials
Zinc-ion capacitors are promising energy storage systems due to their high theoretical capacity, environmental friendliness, and cost effectiveness. Recently, to broaden application scenarios, multifunctional zinc-ion capacitors have been designed and ...
Pu Guo   +7 more
doaj   +1 more source

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