Results 31 to 40 of about 6,000 (220)

Determination of the characteristic directions of lossless linear optical elements

, 2006
We show that the problem of finding the primary and secondary characteristic directions of a linear lossless optical element can be reformulated in terms of an eigenvalue problem related to the unimodular factor of the transfer matrix of the optical ...
Aben H, Aben H, Asundi A, Born M, Bukhgeim AL, Coker EG, Cook RD, Dankert H, Denisov AM, Ditchburn RW, Engl HW, Fowles GR, Frocht MM, Frocht MM, Fuki AA, Guenther RD, Hammer H, Hanno Hammer *, Hecht E, Helgason S, Holand I, Kirsch A, Longhurst RS, Maxwell JC, Natterer P, Poincaré H, Sommerfeld A, Theocaris PS   +27 more
core   +1 more source

Simple, adjustable beam splitting element for differential interferometers based on photoelastic birefringence of a prismatic bar [PDF]

, 2005
We examine the prototypical Toepler optical arrangement for the visualization of phase objects and consider the effect of different contrast elements placed at the focus of the source.
Sanderson, S. R.
core   +1 more source

Decoding NASICON and Its Metal Interface for Solid-State Batteries. [PDF]

Adv Mater
This review paper focuses on lithium‐ and sodium‐based NASICON solid electrolytes and their interfaces with metal anodes using a top‐down framework. It begins with NASICON fundamentals, elucidates anode‐induced failure mechanisms, surveys advanced characterization strategies to understand them, summarizes mitigation approaches, and concludes with a ...
Xu J, Li T, Wang Y, Qiao R, Qiao Q, Chen Y, Yu Z, Zhi C, Shi C.   +8 more
europepmc   +2 more sources

Calibration testing of discs using photoelasticity method

MATEC Web of Conferences, 2018
Using of the photoelasticity method for determining the stresses under the action of specified forced deformations and, in particular, temperature deformations, which do not satisfy the compatibility conditions, is relevant in the study of composite ...
Frishter Ludmila
doaj   +1 more source

High Load-Induced Birefringence of PMMA Investigated in VIS/NIR Spectral Range

Advances in Electrical and Electronic Engineering, 2019
In the paper, we present the results of an investigation of polymethylmetacrylate’s birefringence induced due to applying high-load. The stress-induced birefringence of the polymethylmetacrylate samples was experimentally investigated by an apparatus ...
Norbert Tarjanyi, Milan Uhricik, Daniel Kacik, Peter Palcek   +3 more
doaj   +1 more source

Application of Sharafutdinov's Ray Transform in Integrated Photoelasticity

, 2003
We explain the main concepts centered around Sharafutdinov's ray transform, its kernel, and the extent to which it can be inverted. It is shown how the ray transform emerges naturally in any attempt to reconstruct optical and stress tensors within a ...
B. Lionheart, E.G. Coker, H. Aben, H. Aben, H. Hammer, H. Kubo, H.K. Aben, H.K. Aben, M.M. Frocht, P.S. Theocaris, V.A. Sharafutdinov, Y.A. Andrienko, Y.A. Andrienko, Y.A. Andrienko   +13 more
core   +1 more source

Photoelasticity based dynamic tactile sensor [PDF]

, 2005
The paper presents design, construction and testing of a photoelasticity based dynamic sensor which is capable of detecting slip as well as providing normal force information.
Crowder, Richard M., Dubey, Venketesh N.
core   +1 more source

Spatially resolved stress measurements in materials with polarization-sensitive optical coherence tomography: image acquisition and processing aspects

, 2011
We demonstrate that polarization-sensitive optical coherence tomography (PS-OCT) is suitable to map the stress distribution within materials in a contactless and non-destructive way. In contrast to transmission photoelasticity measurements the samples do
Arminger, Crespo, De la Torre-Ibarra, Ghiglia, Götzinger, Hee, Hitzenberger, Huang, Jacquot, Jessop, Larkin, Larkin, Leitgeb, Nordström, Oh, Park, Quiroga, Ramesh, Ruiz, Schmitt, Servin, Stifter, Stifter, Stroebel, Szkulmowska, Villa, Weickert, Weickert, Wiesauer, Wiesauer, Wiesauer   +30 more
core   +1 more source

The Jamming Transition in Granular Systems [PDF]

, 2006
Recent simulations have predicted that near jamming for collections of spherical particles, there will be a discontinuous increase in the mean contact number, Z, at a critical volume fraction, phi_c.
A. J. Liu, M. Sperl, R. P. Behringer, S. Luding, T. S. Majmudar   +4 more
core   +4 more sources

Photoelasticity of crystalline and amorphous silica from first principles

, 2003
Based on density-functional perturbation theory we have computed from first principles the photoelastic tensor of few crystalline phases of silica at normal conditions and high pressure (quartz, $\alpha$-cristobalite, $\beta$-cristobalite) and of models ...
A. dal Corso, A. Putrino, A. Wright, B. van Beest, D. Biegelsen, D. Donadio, D. Franzblau, D. Hamann, D. Murnaghan, D. Spearing, D. Vanderbilt, F. Detraux, F. Mauri, F. Tassone, G. Francis, H. Limberger, H.J. Monkhorst, J. Chelikowsky, J. Kirkwood, J. Perdew, J. Pluth, J. Reynolds, J. Sarnthein, J. Schroeder, J. Tse, K. Kondo, K. Vedam, K. Vedam, L. Levien, M. Benoit, M. Bernasconi, M. Cardona, N. Troullier, P. Umari, P. Umari, R. Car, R. Hemley, R. Resta, R. Schenker, R.D. King-Smith, S. Baroni, S. de Gironcoli, S. Louie, T. Narasimhamurty, U. von Barth, X. Gonze, X. Gonze, Z. Levine, Z. Levine   +48 more
core   +1 more source