Results 21 to 30 of about 14,021 (265)
IEEE Photonics Journal, 2018 We report the analytical and experimental results of a silicon photonic polarization beam splitter (PBS) consisting of two-stage Mach–Zehnder delay interferometers (MZDIs).
Kohei Morita, Hiroyuki Uenohara
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Ultralow-Loss Planar
IEEE Photonics Journal, 2013 We demonstrate broadband (1500-1620 nm) and low-loss planar waveguide polarizers with measurement-limited on-chip extinction as high as 75 dB. Polarizers can be fabricated in higher confinement 100-nm-thick as well as lower confinement 40-nm-thick Si3N4 ...
J. F. Bauters +5 more
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Two-Mode Waveguide Characterization by Intensity Measurements from Exit Face Images
IEEE Photonics Journal, 2012 A method that characterizes two-mode waveguides whose modes cannot be selectively excited (such as buried waveguides) is presented and demonstrated. The theoretical results are presented for $N$ modes, although for the sake of simplicity, only the two ...
Xesús Prieto-Blanco +1 more
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Optical fibre taper-enabled waveguide photoactuators
Nature Communications, 2022 Despite promising devices, waveguide photoactuators actuating performances have been fundamentally restricted by the nature of standard optical fibres. To overcome these challenges, authors propose an optical fibre taper-enabled waveguide photoactuator ...
Jianliang Xiao +13 more
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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
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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
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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
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Advanced Functional Materials, EarlyView.We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim +6 more
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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
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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
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