Results 71 to 80 of about 3,766,641 (291)

Mode-Splitting for Refractive Index Sensing in Fluorescent Whispering Gallery Mode Microspheres with Broken Symmetry

Sensors, 2018
Whispering gallery mode (WGM) resonators have become increasingly diverse in terms of both architecture and applications, especially as refractometric sensors, allowing for unprecedented levels of sensitivity. However, like every refractometric sensor, a
Yvonne Q. Kang, Alexandre François, Nicolas Riesen, Tanya M. Monro   +3 more
doaj   +1 more source

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

Advanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali, Magali Gregoire, Matys Guyard, Tatiana Itina, David Grojo, Pol Sopeña   +5 more
wiley   +1 more source

Numerical modelling of light propagation in surface plasmon resonance sensor with liquid crystal

Condensed Matter Physics, 2018
The five-layer nanorod-mediated surface plasmon sensor with inhomogeneous liquid crystal layer was theoretically investigated. The reflectance as the function of the incident angle was calculated at different voltages applied to the liquid crystal (LC ...
Ye.S. Yarmoshchuk, V.I. Zadorozhnii, V.Yu. Reshetnyak   +2 more
doaj   +1 more source

Refractive Index Sensing by Using Mechanically Induced Long-Period Grating

IEEE Photonics Journal, 2012
In this paper, a refractive index sensor using a mechanically induced long-period grating is proposed and experimentally demonstrated. The sensing element is based on a composite optical waveguide, which is made of a single-mode fiber, a Teflon-cannula ...
Xiaojun Zhou, Shenghui Shi, Zhiyao Zhang, Yong Liu   +3 more
doaj   +1 more source

Enhanced Ultrasound Transmission Through Aberration Layers Using Space‐Coiling Acoustic Metamaterials

Advanced Engineering Materials, EarlyView.
Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami, Hengzhe Ren, Erqian Dong, Ashkan Ghanbarzadeh‐Dagheyan, Chen Shen   +4 more
wiley   +1 more source

Studying Focusing Properties of Graded Index Photonic Crystals Made of Material with Different Refractive Index [PDF]

Journal of Optoelectronical Nanostructures, 2017
In this paper we investigate focusing properties of graded index (GRIN) photonic crystal (PC) structures which are composed of different materials with different refractive indices. GRIN PC structure is constructed from air holes in dielectric background.
Nasrin Miri, Abdolrasoul Gharaati
doaj  

Architecture‐Driven Sensor Stability in Weft‐Knitted Engineering Textiles

Advanced Engineering Materials, EarlyView.
Textile‐integrated sensor architectures are systematically compared to evaluate their electromechanical behavior under combined mechanical and environmental loading. Pocket‐based integration exhibits stable and reproducible signals, whereas tunnel‐based routing shows higher sensitivity accompanied by increased variability.
Adnan Maroof Khan, Johannes Wendler, Dilbar Aibibu, Johannes Mersch, Michael Wöltje, Chokri Cherif   +5 more
wiley   +1 more source

Spatial Frequency Multiplexing of Fiber-Optic Interferometric Refractive Index Sensors Based on Graded-Index Multimode Fibers

Sensors, 2012
Fiber-optic interferometric sensors based on graded-index multimode fibers have very high refractive-index sensitivity, as we previously demonstrated. In this paper, spatial-frequency multiplexing of this type of fiber-optic refractive index sensors is ...
Hui-Juan Wu, Yun-Jiang Rao, Tian Zhao, Yu Wu, Yuan Gong, Li Liu   +5 more
doaj   +1 more source

Prevalence of refractive error in Europe: the European Eye Epidemiology (E(3)) Consortium. [PDF]

, 2015
To estimate the prevalence of refractive error in adults across Europe. Refractive data (mean spherical equivalent) collected between 1990 and 2013 from fifteen population-based cohort and cross-sectional studies of the European Eye Epidemiology (E(3 ...
Cumberland, P.M., Gabriëlle H. S. Buitendijk, Erke, MG, Astrid Fletcher, Kuijpers, Robert W.A.M., Wolfram, C, Kuijpers, Robert WAM, Cougnard-Grégoire, Audrey, Vingerling, Johannes R., Erke, M.G., Christian Wolfram, Fletcher, Astrid, Kuijpers, R.W., Hammond, Christopher J., Mahroo, Omar, Verhoeven, Virginie, Hogg, Ruth, Wolfram, Christian, Kuijpers, Robert W A M, Luben, RN, Rahi, Jugnoo, Klaver, Caroline C. W., Bertelsen, G., van Duijn, C.M., Anastasopoulos, Eleftherios, Fletcher, A., Rahi, J.S., Robert W. A. M. Kuijpers, Ruth Hogg, Bertelsen, Geir, Hanno, Therese von, Mirshahi, A, Verhoeven, V.J., von Hanno, T, Mahroo, O, Hammond, Christopher J, von Hanno, Therese, Norbert Pfeiffer, Vingerling, J.R., Christopher J. Hammond, Albert Hofman, Klaver, Caroline C W, Cumberland, Phillippa, Hofman, Bert, Hammond, C.J., Verhoeven, Virginie; id_orcid, Meitinger, T, Maja Gran Erke, Fletcher, A, Hogg, Ruth; id_orcid, Cumberland, P, Gieger, Christian, Hammond, CJ, Fotis Topouzis, Creuzot-Garcher, C., Paul J. Foster, Wolfram, C., Khawaja, Anthony P, Buitendijk, Gabriëlle H S, Meitinger, T., Hofman, A., Audrey Cougnard-Grégoire, Buitendijk, G.H., Creuzot Garcher, Catherine, Gieger, C, Buitendijk, Gabriëlle H.S., Delcourt, C, Omar Mahroo, Cornelia M. van Duijn, Bron, A., Woolf, Katie Williams; id_orcid, René Höhn, Bertelsen, G, von Hanno, T., Jean-François Korobelnik, Topouzis, F., Jean-François Dartigues, Mirshahi, A., Dartigues, J.F., Delcourt, C., Korobelnik, Jean-François, Williams, Katie M., Korobelnik, J.F., Gieger, C., Christian Gieger, Vingerling, Johannes R, Williams, KM, van Duijn, Cornelia M., Topouzis, F, Dartigues, JF, Verhoeven, Virginie J.M., Klaver, C.C., Luben, R.N., Khawaja, Anthony P., Geir Bertelsen, Vingerling, Hans, Luben, Robert N, Korobelnik, JF, Höhn, René, Alireza Mirshahi, Bron, A, Pfeiffer, Norbert, van Duijn, Cornelia, Anastasopoulos, E, Hogg, R, Buitendijk, Gabriëlle, Mirshahi, Alireza, Erke, Maja Gran, Virginie J. M. Verhoeven, Cécile Delcourt, Duijn, Cornelia, Klaver, Caroline CW, Creuzot-Garcher, C, Creuzot-Garcher, Catherine, Hofman, Albert, Hohn, R, Foster, PJ, Anthony P. Khawaja, Gran Erke, Maja, Meitinger, Thomas, Khawaja, AP, Khawaja, A.P., Robert N. Luben, Verhoeven, Virginie J M, Anastasopoulos, E., Klaver, Caroline, Foster, Paul J, Cougnard-Grégoire, A., Buitendijk, Gabriëlle HS, Jugnoo Rahi, van Duijn, Cornelia M, Dartigues, Jean-François, Kuijpers, Robert, Cougnard-Gregoire, A, Verhoeven, Virginie JM, Topouzis, Fotis, Klaver, Caroline C.W., Thomas Meitinger, Foster, Paul J., Johannes R. Vingerling, Catherine Creuzot-Garcher, Alain Bron, Caroline C. W. Klaver, Höhn, R., Rahi, J, Katie M. Williams, Luben, Robert N., Pfeiffer, N., Pfeiffer, N, Phillippa Cumberland, Mahroo, O., Williams, Katie M, Bron, Alain, Therese von Hanno, Williams, K.M., Delcourt, Cécile, Foster, P.J., Hammond, Chris, Eleftherios Anastasopoulos, Hogg, R.   +159 more
core   +2 more sources

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

Advanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source