Results 101 to 110 of about 21,925,565 (312)

3D Printing of Highly Dense and Translucent Zirconia Parts for Dental Applications: Effect of Filament Overlapping

Advanced Materials Technologies, EarlyView.
This study formulated a 5Y‐PSZ zirconia paste for extrusion‐based additive manufacturing via direct ink writing, producing dense ceramic structures for dental applications. A colloidal approach with 47 vol% nanometric powder and tailored additives optimized rheology and printability.
Juliana de Freitas Gouveia Silva, Manuel Fellipe Rodrigues Pais Alves, Ana Carolina da Silva, Tiago Moreira Bastos Campos, Renata Marques De Melo, Susana Maria Henriques Olhero   +5 more
wiley   +1 more source

Evanescent-wave and open-air chiral sensing via signal-reversing cavity-enhanced polarimetry

, 2014
Sensing chirality is of fundamental importance to many fields, including analytical and biological chemistry, pharmacology, and fundamental physics. Recent developments have extended optical chiral sensing using microwaves, fs pulses, superchiral light ...
Bougas, Lykourgos, Katsoprinakis, Georgios E., Loppinet, Benoit, Rakitzis, T. Peter, Sofikitis, Dimitris, Spiliotis, Alexandros K.   +5 more
core   +1 more source

Terahertz Chiral Metamaterials Enabling Broadband Polarization Conversion Using Polarization Guiding Effect

Advanced Materials Technologies, EarlyView.
A broadband terahertz polarization rotator consisting of twistingly stacked silicon–air metagratings is designed based on the polarization guiding effect and experimentally shown to achieve 90° linear polarization rotation for both TE and TM incidences.
Yun‐Seok Choi, Tae Gwan Park, Antoinette J. Taylor, Hou‐Tong Chen, Abul K. Azad   +4 more
wiley   +1 more source

Two-Layer Polarization-Maintaining Solid-Core Photonic Crystal Fiber

IEEE Photonics Journal, 2018
In this study, a two-layer polarization-maintaining solid-core photonic crystal fiber (SC-PCF) is proposed. The cladding has two large holes both in the first and second layers for high birefringence and confinement loss reduction, respectively.
Ningfang Song, Fuyu Gao, Xiaobin Xu, Zhihao Zhang   +3 more
doaj   +1 more source

Group-Birefringence-Dispersion Measurements for Polarization-Maintaining Fibers Using a Kerr Phase-Interrogator

Applied Sciences, 2020
A method which utilizes a Kerr phase-interrogator to measure the group birefringence dispersion (GBD) of a polarization-maintaining fiber (PMF) is systematically studied in this paper.
Yang Lu
doaj   +1 more source

Probing vacuum birefringence by phase-contrast Fourier imaging under fields of high-intensity lasers

, 2011
In vacuum high-intensity lasers can cause photon-photon interaction via the process of virtual vacuum polarization which may be measured by the phase velocity shift of photons across intense fields.
A. Piazza Di, A. Yariv, A.E. Siegman, A.N. Luiten, B. King, B. Marx, B. Tollis De, B. Tollis De, C. Amsler, D. Habs, E. Zavattini, G.M. Shore, G.V. Dunne, J. Schwinger, J.M. Maldacena, J.W. Goodman, K. Homma, N.B. Narozhny, N.B. Narozhnyi, N.B. Norozhny, O. Aharony, R. Karplus, R. Schützhold, T. Heinzl, T. Tajima, V. Weisskopf, V.I. Ritus, V.N. Baier, W. Dittrich, W. Heisenberg   +29 more
core   +1 more source

A new structure of photonic crystal fiber with high sensitivity, high nonlinearity, high birefringence and low confinement loss for liquid analyte sensing applications

, 2017
This paper proposes the design and optimization of microstructure optical fiber for liquid sensing applications. A number of propagation characteristics have been compared between two formations of hexagonal cladding of our proposed PCF structure.
Md. Faizul Huq Arif, Md. Jaminul Haque Biddut   +1 more
semanticscholar   +1 more source

Wideband and continuously-tunable fractional photonic Hilbert transformer based on a single high-birefringence planar Bragg grating.

Optics Express, 2018
We propose and experimentally demonstrate wideband and continuously tunable fractional-order photonic Hilbert transformers (FrHT). These are realized by a single apodized planar Bragg grating within a high-birefringence planar substrate.
Zijing Zhang, C. Sima, Bolan Liu, B. Cai, Yuan Gao, Minming Zhang, L. Shen, Yu Yu, Meng Huang, Z. Lian, M. T. Posner, J. Gates, Peter J. Smith, Deming Liu   +13 more
semanticscholar   +1 more source

Phototunable Polarization Volume Gratings Driven by Chiral Hydrazone Switches

Advanced Optical Materials, EarlyView.
Chiral hydrazone photoswitches incorporated into polarization volume gratings enable light‐driven, reversible modulation of optical properties. UV and blue light irradiation reversibly alter the hydrazone isomer ratio, leading to tunable diffraction efficiency and spectral response across the visible spectrum.
Artem Boichuk, Lauri Uosukainen, Indu Bala, Ivan Aprahamian, Arri Priimagi   +4 more
wiley   +1 more source

Molecular Appendix Adjusted Architectural Propagations of Red‐Light Controlled Macroscopic Photoactuating Performances

Advanced Robotics Research, EarlyView.
Amphiphilic chloroazobenzenes, bearing different amino acids as end groups alanine, phenylalanine, and valine, exhibit excellent photoisomerizations. Varying structures of three amino acid groups participate in supramolecular formations and therefore photoinduced morphological transformations via adjusting intermolecular interactions. These interaction
Shuangshuang Meng, Ming‐Hin Chau, Takashi Kajitani, Franco King‐Chi Leung   +3 more
wiley   +1 more source