Results 11 to 20 of about 27,070 (199)

Extraction of chemical information of suspensions using radiative transfer theory to remove multiple scattering effects : application to a model multicomponent system [PDF]

, 2011
The effectiveness of a scatter correction approach based on decoupling absorption and scattering effects through the use of the radiative transfer theory to invert a suitable set of measurements is studied by considering a model multicomponent suspension.
Steponavicius, Raimundas, Thennadil, Suresh   +1 more
core   +1 more source

Risks and Complications Associated with Refractive Surgery

Journal of Student Research, 2022
Myopia, hyperopia, and astigmatism (together called ametropia) are the top causes of vision impairement worldwide. Refractive surgery, surgical modification of refractive surfaces in the eye, are prominent solutions for treating ametropia. This study made a summary of the risks (poor refractive outcomes of either high residual ametropia after surgery ...
Jinghan Li, Yao Xu
openaire   +1 more source

Enhancement of optical switching parameter and third-order optical nonlinearities in embedded Si nanocrystals: a theoretical assessment [PDF]

, 2008
Third-order bound-charge electronic nonlinearities of Si nanocrystals (NCs) embedded in a wide band-gap matrix representing silica are theoretically studied using an atomistic pseudopotential approach.
Boyd, Boyd, Bristow, Bulutay, Ceyhun Bulutay, Dinu, Dinu, Hasan Yıldırım, Khurgin, King, Lin, Lloyd, Pavesi, Pavesi, Prakash, Sevik, Sheik-Bahae, Sheik-Bahae, Sipe, Sipe, Sychugov, Thurpke, Valenta, Wang, Yılmaz   +24 more
core   +2 more sources

Sonoluminescence as a QED vacuum effect. I: The Physical Scenario [PDF]

, 1999
Several years ago Schwinger proposed a physical mechanism for sonoluminescence in terms of changes in the properties of the quantum-electrodynamic (QED) vacuum state. This mechanism is most often phrased in terms of changes in the Casimir Energy: changes
A. Lambrecht, B. A. DiDonna, B. Gompf, B. P. Barber, C. C. Wu, C. E. Carlson, C. E. Carlson, C. Eberlein, C. Eberlein, C. Eberlein, C. Molina-París, C. S. Unnikrishnan, D. Lohse, D. W. Sciama, E. Yablonovitch, F. Belgiorno, I. H. Brevik, J. A. Ketterling, J. B. Young, J. Holzfuss, J. Schwinger, J. Schwinger, J. Schwinger, J. Schwinger, J. Schwinger, J. Schwinger, J. Schwinger, K. Milton, K. Milton, K. Milton, M. Jackel, M. Visser, Matt Visser, N. D. Birrell, N. García, P. Candelas, R. A. Hiller, R. Schützhold, S. Hilgenfeldt, S. Hilgenfeldt, S. Liberati, S. Liberati, T. J. Matula, V. V. Nesterenko, W. C. Moss   +44 more
core   +2 more sources

Modal reflectivity in finite-depth two-dimensional photonic-crystal microcavities [PDF]

, 1998
We present finite-difference time-domain calculations of the Q factor for an optical microcavity defined by a slab waveguide and two-dimensional photonic-crystal end mirrors.
D'Urso, Brian, O'Brien, John, Painter, Oskar, Scherer, Axel, Tombrello, Tom, Yariv, Amnon   +5 more
core   +1 more source

Thermoreflectance Detection of Point Defects Resulting from Focused Ion Beam Milling

Advanced Engineering Materials, EarlyView.
Focused ion beam (FIB) milling is a common tool for nanoscale material processing, however irradiation damage, redeposition, and contamination can occur. We use several characterization tools to show FIB‐induced effects beyond 1 mm from the milled area.
Thomas W. Pfeifer, Eric R. Hoglund, Anton V. Ievlev, Patrick E. Hopkins   +3 more
wiley   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

Advanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik, Alexander Jelinek, Markus Alfreider, Jutta Luksch, Anton Hohenwarter, Florian Schaefer, Christian Motz, Daniel Kiener   +7 more
wiley   +1 more source

Engineered optical nonlinearities and enhanced light transmission in soft-matter systems with tunable polarizabilities

, 2013
In this work, we demonstrate that the nonlinear response of certain soft-matter systems can be tailored at will by appropriately engineering their optical polarizability.
Chen, Zhigang, Christodoulides, Demetrios N., Fardad, Shima, Heinrich, Matthias, Lau, Michael, Man, Weining, Prakash, Jai, Zhang, Peng, Zhang, Ze   +8 more
core   +1 more source

Diagnosis and management of iridocorneal endothelial syndrome [PDF]

, 2015
The iridocorneal endothelial (ICE) syndrome is a rare ocular disorder that includes a group of conditions characterized by structural and proliferative abnormalities of the corneal endothelium, the anterior chamber angle, and the iris.
Ambrosio, Oriella, Macchi, Ilaria, Mantelli, Flavio, Marenco, Marco, Rama, Paolo, SACCHETTI, MARTA   +5 more
core   +2 more sources