Results 121 to 130 of about 66,228 (297)

Engineering of orbital angular momentum supermodes in coupled optical waveguides [PDF]

, 2017
In this work we demonstrate the existence of orbital angular momentum (OAM) bright and dark supermodes in a three-evanescently coupled cylindrical waveguides system.
Turpin Avilés, Alejandro, Pelegrí Andres, Gerard, Ahufinger, V., G. Pelegrí, Mompart Penina, Jordi, J. Mompart, Polo Gomez, Juan, Turpin, A., J. Polo, A. Turpin, Mompart, J., Polo, J., Ahufinger, Verònica, Pelegrí, G., V. Ahufinger   +14 more
core   +1 more source

Tailoring Li‐ion Storage and Transport in Two‐Dimensional Conjugated Metal‐Organic Frameworks via Precise Nitrogen Incorporation

Advanced Functional Materials, EarlyView.
Two nitrogen‐doped 2D conjugated metal‐organic frameworks (2D c‐MOFs, namely Cu‐Nx‐OHBA, x = 2 or 4) are synthesized, featuring precise nitrogen incorporation via rational ligand design. The Cu‐Nx‐OHBA 2D c‐MOFs are largely tailorable by varying skeletal nitrogen density, with respect to electrical conductivity, Li‐storage capacitance, and Li‐transport
Xiangyu Li, Shaoze Shi, Fucai Cui, Rashid Iqbal, Pengyu Wang, Tianrui Wu, Jingcheng Hao, Renhao Dong   +7 more
wiley   +1 more source

Description of two new species of Hisonotus Eigenmann & Eigenmann, 1889 (Ostariophysi, Loricariidae) from the rio Paraná-Paraguay basin, Brazil

ZooKeys, 2014
Two new species of Hisonotus are described from the rio Paraná-Paraguay basin in Brazil. The most remarkable features of the new species are the odontodes forming longitudinally aligned rows (one odontode after the other, but not necessarily ...
Fábio Roxo, Cláudio Zawadzki, Waldo Troy   +2 more
doaj   +1 more source

Unraveling the Electronic Structure of Silicon Vacancy Centers in 4H‐SiC

Advanced Functional Materials, EarlyView.
The electronic structure of the silicon vacancy in 4H‐SiC is probed via transient absorption spectroscopy, uncovering previously inaccessible excited states of the quartet and doublet spin channels, including the V2' transition. In combination with theoretical analysis, a comprehensive picture of the electronic structure is established.
Ali Tayefeh Younesi, Minh Tuan Luu, Christopher Linderälv, Vytautas Žalandauskas, Marianne Etzelmüller Bathen, Nguyen Tien Son, Takeshi Ohshima, Gergő Thiering, Lukas Razinkovas, Ronald Ulbricht   +9 more
wiley   +1 more source

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf, Hiba Shahulhameed, Bhabani Sankar Swain, Shengzhong (Frank) Liu, Adel Najar   +4 more
wiley   +1 more source

Planet formation and disc dynamics in stellar clusters and misaligned binary systems

, 2009
PhDIn this thesis I investigate the formation and dynamics of planets and protoplanetary discs, subject to external gravitational perturbations.
Fragner, Moritz Matthias
core  

Semi-analytical Model for the Dynamical Evolution of Planetary Systems via Giant Impacts

The Astrophysical Journal
In the standard model of terrestrial planet formation, planets are formed through giant impacts of planetary embryos after the dispersal of the protoplanetary gas disk.
Tadahiro Kimura, Haruka Hoshino, Eiichiro Kokubo, Yuji Matsumoto, Masahiro Ikoma   +4 more
doaj   +1 more source

Synthesis, structure, DFT study and molecular docking inspection of spirobi[hexahydropyrimidine]-diones derivative

Chemical Physics Impact
It has been established that three-component condensation of benzaldehyde, acetone and urea catalyzed H2SO4 leads to the formation of spirobi[hexahidropyrimidine]-dione derivatives.
Malahat Kurbanova, Suraj N. Mali, Fidan Gurbanova, Haya Yasin, Shailesh S. Gurav, Chin-Hung Lai   +5 more
doaj   +1 more source

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

Unusual Structure-Energy Correlations in Intramolecular Diels–Alder Reaction Transition States

, 2014
Detailed analysis of calculated data from an experimental/computational study of intramolecular furan Diels–Alder reactions has led to the unusual discovery that the mean contraction of the newly forming C-C σ-bonds from the transition state to the ...
Robert L. Rae, Paterson, Martin; id_orcid, Żurek, Justyna, Justyna Żurek, Justyna M. Żurek, Rae, Robert, Robert Rae, Paterson, Martin J., Martin J. Paterson, Martin Paterson, Magnus Bebbington, Bebbington, Magnus, Żurek, Justyna M., Magnus W. P. Bebbington, Rae, Robert L.   +14 more
core   +1 more source