Results 141 to 150 of about 9,843 (297)

A compact dual-crystal modulated birefringence-measurement system for microgravity applications

open access: yes, 2018
A compact modulated birefringence-measurement system has been developed for use in microgravity fluid physics applications with non-Newtonian fluids such as polymer solutions.
Shelley Anna (3893335)   +3 more
core   +1 more source

Coccolithophore particulate inorganic and organic carbon ratios: An evaluation of acid decalcification methods

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Accurate direct measurements of coccolithophore particulate inorganic and organic carbon ratios (PIC/POC) are crucial for understanding the physiology and role these microbes play in global ocean carbon flux. Direct measurements of POC are commonly obtained by acid fuming or applying acid directly to filters to dissolve PIC (CaCO3) prior to CN
Madison B. Cox   +2 more
wiley   +1 more source

Pancharatnam–Berry Phase Driven by Electrical Restructuring of Liquid Crystal Polarization Grating Period

open access: yesLaser &Photonics Reviews, EarlyView.
Electrically controlled liquid‐crystal twist diffraction element based on the Pancharatnam–Berry phase enables switchable structural periodicity and simultaneous generation of orthogonal circularly polarized coherent waves for multifunctional planar photonic devices.
Elena Melnikova   +7 more
wiley   +1 more source

Measurement and analysis of the birefringence of photonic crystal fiber with wavelength scanning method

open access: yes, 2007
The birefringence of photonic crystal fiber is measured by wavelength scanning method with the Sagnac loop configuration. Both the accuracy of using the empirical formula B-m alpha lambda(b) in the prediction of modal birefringence, B-m, and the error of
Xie, Z. S.   +3 more
core  

Ultra Short Pulse Laser Welding of Glass to Metal in the Low Fluence Regime

open access: yesLaser &Photonics Reviews, EarlyView.
Ultrashortpulse laser welding enables precise joining of glass and metal with minimal thermal damage. We introduce the TwoThresholds Criteria to identify suitable laser parameters by combining the nonlinearabsorption threshold in glass with the metalmodification fluence threshold.
Lukas Günther   +4 more
wiley   +1 more source

Frontiers of Bright CEP‐Stable Broadband Infrared Sources

open access: yesLaser &Photonics Reviews, EarlyView.
Bright CEP‐stable broadband infrared sources push the limits of ultrafast science by delivering exceptional brightness alongside few‐cycle durations and multi‐octave spectral coverage. This review highlights emerging architectures and nonlinear conversion strategies that scale power while preserving phase stability.
Ugaitz Elu, Jens Biegert
wiley   +1 more source

Giant Phonon‐Enhanced Terahertz Electro‐Optic Response in Ferroelectric van der Waals NbOX2 (X = Br, I)

open access: yesLaser &Photonics Reviews, EarlyView.
Van der Waals ferroelectric NbOX2 thin films exhibit phonon‐resonance enhanced electro‐optic responses, 332 pm/V at 3.1 THz (NbOI2) and 192 pm/V at 3.7 THz (NbOBr2), the highest among vdW materials, and show 4% non‐resonant SHG modulation together with resonant phonon‐enhancement under a 150 kV/cm THz pump.
Baolong Zhang   +3 more
wiley   +1 more source

Low‐Hysteresis Cellulose‐Based Hydrogels for Strain Detecting

open access: yesMacromolecular Rapid Communications, EarlyView.
Low‐hysteresis hydrogel with high cellulose content is prepared. The modified cellulose is prepared through a sequential periodate oxidation and borohydride reduction process. The hydrogel can be used as a strain sensor with a gauge factor of 1.1 in the 0%–300% sensing range.
Xia Sun, Fanghan Luo, Feng Jiang
wiley   +1 more source

Targeting fibrosis in the treatment of lower urinary tract dysfunction

open access: yesThe Journal of Pathology, EarlyView.
Abstract Benign prostatic hyperplasia (BPH) is a widely prevalent age‐associated disease that is the main contributor to lower urinary tract dysfunction (LUTD) in aging men. Although prostate fibrosis has been recognized as a contributor to BPH pathophysiology, there are not any clinically available therapeutics that target this aspect of disease ...
Ajinkya R Limkar   +6 more
wiley   +1 more source

Effects of Cooling Rates on Self‐Reinforced Polyethylene Composites via Multiscale Experimental Characterizations

open access: yesPolymer Composites, EarlyView.
(top) fabrication and multi‐scale characterizations of self‐reinforced polyethylene composites (PE‐SRCs); (bottom) effects of cooling rates on mechanical properties and crystal morphologies of PE‐SRCs. ABSTRACT This study investigates cooling rate effects on self‐reinforced polyethylene composites (PE‐SRCs), focusing on macroscopic thermal and ...
Yelin Ni   +7 more
wiley   +1 more source

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