Results 71 to 80 of about 117,799 (311)

Optical signatures of lattice strain in chemically doped colloidal quantum wells

open access: yesNature Communications
Lattice strain plays a vital role in tailoring the optoelectronic performance of colloidal nanocrystals (NCs) with exotic geometries. Although optical identifications of lattice strain in irregular-shaped NCs or hetero-structured NCs have been well ...
Junhong Yu   +2 more
doaj   +1 more source

Vortex solitons in moiré optical lattices

open access: yesOptics Letters, 2023
We show that optical moiré lattices enable the existence of vortex solitons of different types in self-focusing Kerr media. We address the properties of such states both in lattices having commensurate and incommensurate geometries (i.e., constructed with Pythagorean and non-Pythagorean twist angles, respectively), in the different regimes that occur ...
Sergey K. Ivanov   +3 more
openaire   +3 more sources

Topological orbital superfluid with chiral d-wave order in a rotating optical lattice

open access: yesNew Journal of Physics, 2017
Topological superfluid is an exotic state of quantum matter that possesses a nodeless superfluid gap in the bulk and Andreev edge modes at the boundary of a finite system.
Ningning Hao, Huaiming Guo, Ping Zhang
doaj   +1 more source

Dielectric Meta-lattices with Tunable Reflectivity

open access: yesJournal of Mathematical and Fundamental Sciences, 2022
We report a study on the reflective performance of a dielectric meta-lattice formed by a one-dimensional periodic arrangement of silicon nanotubes. It was found that switching from transparent state to reflective state can be done by simply varying one ...
Suhandoko Dwi Isro   +2 more
doaj   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat   +7 more
wiley   +1 more source

Perfect Off-Axis Optical Vortex Lattice

open access: yesPhotonics
Optical vortex lattices (OVLs) with diverse modes show potential for a wide range of applications, such as high-capacity optical communications, optical tweezers, and optical measurements.
Yuping Tai   +5 more
doaj   +1 more source

Composite boson signature in the interference pattern of atomic dimer condensates

open access: yesNew Journal of Physics, 2019
We predict the existence of high frequency modes in the interference pattern of two condensates made of fermionic-atom dimers. These modes, which result from fermion exchanges between condensates, constitute a striking signature of the dimer composite ...
Shiue-Yuan Shiau   +2 more
doaj   +1 more source

Soliton Eigenvalue Control in Optical Lattices [PDF]

open access: yesPhysical Review Letters, 2004
We address the dynamics of higher-order solitons in optical lattices, and predict their self-splitting into the set of their single-soliton constituents. The splitting is induced by the potential introduced by the lattice, together with the imprinting of a phase tilt onto the initial multisoliton states.
Kartashov, Yaroslav V.   +6 more
openaire   +5 more sources

Towards Defect Phase Diagrams: From Research Data Management to Automated Workflows

open access: yesAdvanced Engineering Materials, EarlyView.
A research data management infrastructure is presented for the systematic integration of heterogeneous experimental and simulation data required for defect phase diagrams. The approach combines openBIS with a companion application for large‐object storage, automated metadata extraction, provenance tracking and federated data access, thereby supporting ...
Khalil Rejiba   +5 more
wiley   +1 more source

Recent Advances Concerning the 87Sr Optical Lattice Clock at the National Time Service Center

open access: yesApplied Sciences, 2018
We review recent experimental progress concerning the 87Sr optical lattice clock at the National Time Service Center in China. Hertz-level spectroscopy of the 87Sr clock transition for the optical lattice clock was performed, and closed-loop operation of
Yebing Wang   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy