Results 41 to 50 of about 73,612 (283)

Controlling Exsolution Dynamics in High‐Entropy Oxides for Highly Active and Selective Acetylene Semi‐Hydrogenation

Angewandte Chemie, EarlyView.
Li+‐induced lattice distortion, valence variation, and local charge redistribution in a rock salt‐structured high‐entropy oxide enable controlled metal exsolution, altering the Cu–Ni–Co exsolution sequence and delivering a surface Cu0‐enriched catalyst with exceptional activity and ethylene selectivity for acetylene semi‐hydrogenation.
Hailing Yu, Caiqi Wang, Kevin M. Siniard, Qingju Wang, Yuanpeng Zhang, J. Anibal Boscoboinik, Xiao Tong, Eliseo Perez Gomez, Shuai Yuan, Arun S. Asundi, Oliver Mueller, Murillo Longo Martins, Yongqiang Cheng, Michael Richard Koehler, De‐en Jiang, Zili Wu, Zhenzhen Yang, Sheng Dai   +17 more
wiley   +2 more sources

Measuring Mueller matrix of an arbitrary optical element with a fixed set of polarization optics

, 2013
We have described a novel way to determine the Mueller matrix of any optical element by using projection method. For this purpose, we have used two universal SU(2) gadgets for polarization optics to obtain projection matrix directly from the experiment ...
Aadhi, A., Kumar, Ashok, Prabhakar, Shashi, Reddy, Salla Gangi, Shah, Megh, Simon, R., Singh, R. P.   +6 more
core   +1 more source

Determination of local polarization properties of biological samples in the presence of diattenuation by use of Mueller optical coherence tomography [PDF]

, 2004
A unique feature of polarization-sensitive Mueller optical coherence tomography is that, by measuring Jones or Mueller matrices, it can reveal the complete polarization properties of biological samples, even in the presence of diattenuation. We map local
Jiao, Shuliang, Stoica, George, Todorović, Miloš, Wang, Lihong V.   +3 more
core   +1 more source

Role of spatial coherence in polarization tomography

, 2005
We analyze an experimental setup in which a quasi-monochromatic spatially coherent beam of light is used to probe a paraxial optical scatterer. We discuss the effect of the spatial coherence of the probe beam on the Mueller matrix representing the ...
A. Aiello, Anderson, Carozzi, Gil, J. P. Woerdman, Kim, Korotkova, Mandel, Rao, Rao, Wolf, Wolf   +11 more
core   +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

Sum decomposition of Mueller-matrix images and spectra of beetle cuticles

, 2015
International audienceSpectral Mueller matrices measured at multiple angles of incidence as well as Mueller matrix images are recorded on the exoskeletons (cuticles) of the scarab beetles Cetonia aurata and Chrysina argenteola.
Arwin, Hans, de Martino, Antonello, Fallet, Clément, Foldyna, Martin, Garcia-Caurel, Enric, Jarrendahl,, Kenneth, Magnusson, Roger, Ossikovski, Razvigor   +7 more
core   +5 more sources

Complex Spatial Illumination Scheme Optimization of Backscattering Mueller Matrix Polarimetry for Tissue Imaging and Biosensing

Biosensors
Polarization imaging and sensing techniques have shown great potential for biomedical and clinical applications. As a novel optical biosensing technology, Mueller matrix polarimetry can provide abundant microstructural information of tissue samples ...
Wei Jiao, Zheng Zhang, Nan Zeng, Rui Hao, Honghui He, Chao He, Hui Ma   +6 more
doaj   +1 more source

Quantum theory of polarimetry: From quantum operations to Mueller matrices

Physical Review Research, 2020
Quantum descriptions of polarization show the rich degrees of freedom underlying classical light. While changes in polarization of light are well described classically, a full quantum description of polarimetry, which characterizes substances by their ...
Aaron Z. Goldberg
doaj   +1 more source

Long‐Term Hydrophilic, Anti‐Clotting, and Anti‐Fibrotic Dynamic Covalent Silicone‐Based Biomaterials

Advanced Healthcare Materials, EarlyView.
Dynamic covalent crosslinking of a Schiff‐base silicone elastomer with hydrazide‐functionalized polymers is demonstrated to improve the long‐term hydrophilicity as well as the anti‐fouling and anti‐clotting properties of PDMS implants. The hydrazone‐functionalized material prevents hydrophobic recovery, resists clotting, and significantly reduces ...
Norma A. Garza Flores, Eva Mueller, Robert Bui, James C. Fredenburgh, Ruiqi Yin, Rawaa Hussain, Rida A. Malik, Thomas Kalab, Dabeer Abdul‐Azeez, Fei Xu, Michael Brook, Jeffrey I. Weitz, Todd Hoare   +12 more
wiley   +1 more source

Analytical Modelling of Thirty Meter Telescope Optics Polarization [PDF]

, 2015
The polarization introduced due to Thirty Meter Telescope (TMT) optics is calculated using an analytical model. Mueller matrices are also generated for each optical element using Zemax, based on which the instrumental polarization due to the entire ...
Anche, Ramya M., Anupama, G. C., Atwood, Jenny, Pandey, Shashi Bhushan, Ramaprakash, A. N., Reddy, Krishna, Sankarasubramanian, K., Sen, Asoke Kumar, Sengupta, Sujan, Skidmore, Warren, Tirupathi, Sivarani   +10 more
core   +1 more source