Results 31 to 40 of about 1,800,404 (287)
A nanograting-based flexible and stretchable waveguide for tactile sensing
Nanoscale Research Letters, 2021 Based on the related characteristics of optical waveguide and flexible optical materials, a flexible and stretchable optical waveguide structure oriented to tactile perception is proposed. The sensing principle of optical waveguide is based on mechanical
Wang Peng, Qingxi Liao, Han Song
doaj +1 more source
Yb:tungstate waveguide lasers [PDF]
, 2011 Lasers find a wide range of applications in many areas including photo-biology, photo-chemistry, materials processing, imaging and telecommunications. However, the practical use of such sources is often limited by the bulky nature of existing systems.
Bain, Fiona Mair
core +2 more sources
IEEE Photonics Journal, 2018 We present a detailed study of the effect of large optical cavity (LOC) waveguide design on the laser's kink performance and it was found that a multimode waveguide in the epi growth direction could lead to the occurrence of the power kink in the ...
Bocang Qiu +6 more
doaj +1 more source
Shortcuts to adiabaticity in waveguide couplers–theory and implementation
Advances in Physics: X, 2021 Adiabatic processes are ubiquitous in physics and engineering. A drawback of such processes is that they tend to be slow, either in time–for atomic systems, for example–or in space–for photonic systems. A number of techniques have been developed over the
Adam K. Taras +6 more
doaj +1 more source
Four-port coupled channel-guide device based on 2D photonic crystal structure [PDF]
, 2004 We have fabricated and measured a four-port coupled channel-waveguide device using W1 channel waveguides oriented along ΓK directions in a two-dimensional (2D) hole-based planar photonic crystal (PhC) based on silicon-on-insulator (SOI) waveguide ...
De La Rue, R M +2 more
core +1 more source
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 +4 more
wiley +1 more source
Progress on Waveguide-Integrated Graphene Optoelectronics
Advances in Condensed Matter Physics, 2018 Graphene, a single layer of carbon atoms arranged in the form of hexagonal lattice, has many intriguing optical and electrical properties. However, due to the atomic layer thickness, light-matter interactions in the monolayer graphene are naturally weak ...
Jiaqi Wang, Zhenzhou Cheng, Xuejin Li
doaj +1 more source
Waveguide properties of thin polymer films [PDF]
, 1999 Some basic concepts and principles of optical dielectric slab waveguiding and experimental methodology involving characterisation of waveguide films are introduced, Results from the characterisation of thin polymeric waveguide films and measurements of ...
Ren, Yitao, Ren, Y.
core
Integration of Complex Optical Functionality in a Production CMOS Process [PDF]
, 2005 Optical functionality has been developed within the confines of an existing CMOS process. As of this writing, 10Gigabit modulators, electrically tunable optical filters, waveguides, and grating coupler technology have been successfully implemented ...
Gunn, Lawrence Cary, III
core +1 more source
Advanced Functional Materials, EarlyView.Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner +14 more
wiley +1 more source