Results 71 to 80 of about 2,043,473 (299)

Nonlinear optical characterisation of organic chromophores and aspects of molecular aggregation [PDF]

, 2001
The work presented in this thesis describes an investigation into the properties and behaviour of a new class of nonlinear optical organic chromophores.
Hackman, Nancy-Ann
core  

Nonlinear absorption measurements of azaborondipyrromethenedyes by the Z-Scan method

, 2019
International audienceWe studied the effects of bromine substitution on the nonlinear absorption properties of aza-dipyrromethene dyes. Nonlinear absorption is measured at wavelengths of 1200, 1500, and 1700nm.
Hao Jung Chang, van Stryland, Eric, W, Oliver Maury, Chantal, Andraud, Hagan, David, J, Sepehr Benis, Andraud Chantal, Van Stryland, Eric,, Maury, Oliver, David, Sylvain, Chang, Hao-Jung, Sylvain David, Faryadras, Sanaz, Eric W. Van Stryland, David J. Hagan, Benis, Sepehr, Sanaz Faryadras, Hagan, David,, Gerard Berginc, Berginc, Gérard   +19 more
core   +1 more source

Flexural Behavior of 3D‐Printed Porous Bouligand‐Structured Polymers: Influence of Pitch Angle and Porosity

Advanced Engineering Materials, EarlyView.
This study examines how helicoidal architectures with different porosities respond to bending. Adjusting layer angle and spacing in 3D‐printed polymers reveals clear tradeoffs between stiffness, strength, and energy absorption. Experiments and simulations highlight designs that distribute stress effectively, offering pathways for optimizing lightweight
Praveenkumar Subhash Patil, Edward D. McCarthy, Parvez Alam   +2 more
wiley   +1 more source

Dispersion monitoring for high-speed WDM networks via two-photon absorption in a semiconductor microcavity [PDF]

, 2006
Due to the continued demand for bandwidth, network operators have to increase the data rates at which individual wavelengths operate at. As these data rates will exceed 100 Gbit/s in the next 5-10 years, it will be crucial to be able to monitor and ...
Guo, Wei Hua, J. F. Donegan, W. H. Guo, Bradley, L., Folliot, Hervé, Marciniak, Marian, Maguire, P.J., P. J. Maguire, Guo, W.H., A. L. Bradley, Folliot, H., Lynch, M., Barry, Liam P., Bondarczuk, Krzysztof, Lynch, Michael, H. Folliot, Bradley, Ann Louise, O'Dowd, John, Donegan, John Francis, Donegan, J.F., K. Bondarczuk, J. O'Dowd, Bondarczuk, K., L. P. Barry, Maguire, Paul J., M. Lynch, Barry, Liam, P.   +26 more
core   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Optical Properties of the Fresnoite Ba2TiSi2O8 Single Crystal

Crystals, 2017
In this work, using large-sized single crystals of high optical quality, the optical properties of Ba2TiSi2O8 were systematically investigated, including transmission spectra, refractive indices and nonlinear absorption properties. The crystal exhibits a
Chuanying Shen, Huaijin Zhang, Duanliang Wang, Jiyang Wang, Robert I. Boughton   +4 more
doaj   +1 more source

An Explicit Constitutive Reconstruction Framework for Mechanical Characterization of Miniaturized 3D‐Printed Specimens

Advanced Engineering Materials, EarlyView.
An explicit constitutive reconstruction framework enables accurate tensile characterization of miniaturized additively manufactured specimens using only the grip‐to‐grip displacement measurements. Progressive validation through self‐consistency, analytical comparison, and inverse finite element method (iFEM) benchmarking demonstrates constitutive ...
Junqing Leng, Caralyn Collins, Pengpeng Zhang, Joanna Zhang, Cheng Sun   +4 more
wiley   +1 more source

On the behavior of solutions of a doubly nonlinear degenerate parabolic system with nonlinear sources and absorptions with variable densities

Қарағанды университетінің хабаршысы. Математика сериясы
In this paper, the problem of a doubly nonlinear degenerate parabolic system with nonlinear sources and absorption terms not located in a homogeneous medium was considered. It obeys zero Dirichlet boundary conditions in a smooth bounded domain.
M.M. Aripov, O.X. Atabaev, A.M. AL-Marashi   +2 more
doaj   +1 more source

Indium selenide film: a promising saturable absorber in 3- to 4-μm band for mid-infrared pulsed laser

Nanophotonics, 2020
Indium selenide (InSe) film, an emerging two-dimensional chalcogenide semiconductor, has recently attracted growing interests in optoelectronics. However, its nonlinear characteristics and application potentials in mid-infrared (IR) region remain open ...
Hai Ting, Xie Guoqiang, Qiao Zhen, Qin Zhipeng, Ma Jie, Sun Yue, Wang Fengqiu, Yuan Peng, Ma Jingui, Qian Liejia   +9 more
doaj   +1 more source

Nonlinear absorption of surface acoustic waves by composite fermions

, 2003
Absorption of surface acoustic waves by a two-dimensional electron gas in a perpendicular magnetic field is considered. The structure of such system at the filling factor ν close to 1/2 can be understood as a gas of composite fermions.
Y. M Galperin, J Bergli, J. Bergli, Y. M. Galperin   +3 more
core   +1 more source