Results 41 to 50 of about 92,341 (305)
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
Fabrication and characterization of on-chip silicon nitride microdisk integrated with colloidal quantum dots [PDF]
, 2015 International ...
Aubert, Tangi +5 more
core +2 more sources
A fully integrated high-Q Whispering-Gallery Wedge Resonator
, 2012 Microresonator devices which posses ultra-high quality factors are essential for fundamental investigations and applications. Microsphere and microtoroid resonators support remarkably high Q's at optical frequencies, while planarity constrains preclude ...
Aoki +27 more
core +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
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Large second harmonic generation enhancement in SiN waveguides by all-optically induced quasi phase matching [PDF]
, 2017 Integrated waveguides exhibiting efficient second-order nonlinearities are crucial to obtain compact and low power optical signal processing devices. Silicon nitride (SiN) has shown second harmonic generation (SHG) capabilities in resonant structures and
Billat, Adrien +5 more
core +3 more sources
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
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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Demonstration of silicon-on-insulator mid-infrared spectrometers operating at 3.8µm
, 2013 The design and characterization of silicon-on-insulator mid- infrared spectrometers operating at 3.8µm is reported. The devices are fabricated on 200mm SOI wafers in a CMOS pilot line.
Chen, Xia +8 more
core +1 more source
Characterisation of slow light in a waveguide grating [PDF]
, 2006 A grating was defined in a silicon nitride waveguide, using a combination of both conventional lithography and laser interference lithography. The structure was optically characterized in the 1520 – 1560 nm wavelength range by combining transmission ...
Hoekstra, Hugo J.W.M. +2 more
core +4 more sources
Electroactive Metal–Organic Frameworks for Electrocatalysis
Advanced Functional Materials, EarlyView.Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska +7 more
wiley +1 more source