Results 91 to 100 of about 284,523 (291)
A multi-layer platform for low-loss nonlinear silicon photonics
APL Photonics, 2019 We demonstrate four-wave mixing (FWM) interactions in a-Si:H waveguides in a multilayer integrated silicon photonic chip. The a-Si:H waveguides are accessed through interlayer couplers from waveguides composed of SiNx.
Neil MacFarlane +4 more
doaj +1 more source
Spiral Waveguides on Germanium-on-Silicon Nitride Platform for Mid-IR Sensing Applications
IEEE Photonics Journal, 2018 Spiral waveguides on a new germanium-on-silicon nitride (GON) platform with a wide transparency and a large core-clad index contrast for mid-infrared (mid-IR) sensing applications are demonstrated. Spiral waveguide sensors with a low bending loss on this
Wei Li +9 more
doaj +1 more source
Waveguide, waveguide production method, and polarisation splitter using said waveguide
, 2019 The invention relates to a waveguide and a polarisation splitter based on said waveguide, in which a rotation of an angle greater than zero is applied to a plurality of sections of a core material and a plurality of sections of a covering material, thereby achieving independent control of the refractive indices of a zero-order transverse electric mode ...
Halir, Robert +6 more
openaire +1 more source
Heat accumulation effects in femtosecond laser-written waveguides with variable repetition rate.
Optics Express, 2005 High-repetition rate femtosecond lasers are shown to drive heat accumulation processes that are attractive for rapid writing of low-loss optical waveguides in transparent glasses.
S. Eaton +6 more
semanticscholar +1 more source
Advances in Halide Perovskites for Photon Radiation Detectors
Advanced Materials Technologies, EarlyView.This work highlights recent progress in perovskite‐based photon radiation detectors, covering organic–inorganic hybrid, inorganic, lead‐free double, and vacancy‐ordered halide perovskites. Their detection performance is compared, material‐specific advantages and challenges are examined, and provides insight into current limitations and future ...
Liangling Wang +3 more
wiley +1 more source
Waveguide Engineering of Graphene Optoelectronics—Modulators and Polarizers
IEEE Photonics Journal, 2018 The concept of incorporating graphene into nanophotonic waveguides has pullulated into massive broadband optoelectronic applications with compact footprint.
Yuan Meng +7 more
doaj +1 more source
Advanced Materials Technologies, EarlyView.Soft multimaterial optical fibers integrate multiple functionalities—such as waveguiding, side emission, sensing, drug delivery or actuation—into a single filament for wearable, implantable, and tissue‐integrated devices for diagnostics and phototherapy.
Zahra Kafrashian +2 more
wiley +1 more source
Intrinsically Stabilized Plastic Optical Fiber Link Subject to External Optical Feedback
IEEE Photonics Journal, 2019 We develop a graded-index plastic optical fiber (GI POF) that can significantly stabilize a multimode fiber (MMF) link with a vertical-cavity surface-emitting laser (VCSEL) subject to external optical feedback.
Azusa Inoue, Yasuhiro Koike
doaj +1 more source
Advanced Materials Technologies, EarlyView.This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane +4 more
wiley +1 more source
Advanced Materials Technologies, EarlyView.Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu +8 more
wiley +1 more source