Results 141 to 150 of about 20,871 (297)

Broadband high birefringence and polarizing hollow core antiresonant fibers

, 2016
We systematically study different approaches to introduce high birefringence and high polarization extinction ratio in hollow core antiresonant fibers.
Abokhamis Mousavi, Seyed Mohammad, Sandoghchi, Seyed Reza, Richardson, David J., Poletti, Francesco   +3 more
core   +1 more source

Raman Bands of Malto‐ and Isomalto‐Oligosaccharides as Models for Starch

Journal of Raman Spectroscopy, EarlyView.
The present study measured Raman spectra of malto‐ and isomalto‐oligosaccharides with various degree of polymerization as models for starch. The data suggest that malto‐oligosaccharides with degree of polymerization ≥ 5 exhibit Raman bands similar to those of starch.
Shusaku Nakajima, Takuma Genkawa
wiley   +1 more source

High-speed, solid state, interferometric interrogator and multiplexer for fiber Bragg grating sensors

, 2011
We report on the design and prototyping of a robust high-speed interferometric multiplexer and interrogator for fiber Bragg grating sensors. The scheme is based on the combination of active WDM channel switching and passive, instantaneous interferometry,
Niewczas, Pawel, P. Orr, Orr, Philip, P. Niewczas   +3 more
core   +1 more source

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

Limnology 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, Robert F. Whitehead, Alison R. Taylor   +2 more
wiley   +1 more source

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

Laser &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, Katsiaryna Pantsialeyeva, Alexei Tolstik, Veranika Stanevich, Daminika Dashkevich, Anatoli Murauski, Alexander Muravsky, Alina Karabchevsky   +7 more
wiley   +1 more source

Toward Large‐Scale Photonic Chips Using Low‐Anisotropy Thin‐Film Lithium‐Tantalate

Advanced Science
Photonic manipulation of large‐capacity data with the advantages of high speed and low power consumption is a promising solution for explosive growth demands in the era of post‐Moore. A well‐developed lithium‐niobate‐on‐insulator (LNOI) platform has been
Fei Huang, Xiaowan Shen, Siyuan Wang, Haochen Xu, Hongxuan Liu, Zexu Wang, He Gao, Xinmin Yao, Hengzhen Cao, Bin Chen, Xijie Wang, Jizhi Zhang, Zhile Wu, Mingyu Zhu, Hongzhi Xiong, Weike Zhao, Huan Li, Zejie Yu, Liu Liu, Yaocheng Shi, Daoxin Dai   +20 more
doaj   +1 more source

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

Laser &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, Anne Friedrich, Jens Ulrich Thomas, Andreas Koglbauer, Dominique de Ligny   +4 more
wiley   +1 more source

Frontiers of Bright CEP‐Stable Broadband Infrared Sources

Laser &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)

Laser &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, Ruihuan Duan, Zheng Liu, Ranjan Singh   +3 more
wiley   +1 more source

Low‐Hysteresis Cellulose‐Based Hydrogels for Strain Detecting

Macromolecular 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