Results 61 to 70 of about 28,106 (229)
Lithium Niobate Single Crystals and Powders Reviewed—Part II
Crystals, 2020 A review on lithium niobate single crystals and polycrystals has been prepared. Both the classical and recent literature on this topic is revisited. It is composed of two parts with several sections. The current part discusses the available defect models
Oswaldo Sánchez-Dena +3 more
doaj +1 more source
Design of Ultracompact High‐Speed‐Integrated Lithium–Niobate Periodic Dielectric Waveguide Modulator
Advanced Photonics Research, 2022 Modern communications and microwave photonics require compact electro‐optic modulators with ultrahigh bandwidth and low power consumption. These requirements can be satisfied by integrated lithium–niobate electro‐optic modulators with high bandwidth and ...
Yifan Qi +5 more
doaj +1 more source
Analysis of terahertz generation using tilted-pulse-fronts
, 2018 A 2-D spatio-temporal analysis of terahertz generation by optical rectification of tilted-pulse-fronts is presented. Closed form expressions of terahertz transients and spectra in two spatial dimensions are furnished in the undepleted limit. Importantly,
Kärtner, Franz X., Ravi, Koustuban
core +2 more sources
Generation of five phase-locked harmonics by implementing a divide-by-three optical frequency divider [PDF]
, 2015 We report the generation of five phase-locked harmonics, f_1: 2403 nm, f_2: 1201 nm, f_3: 801 nm, f_4: 600 nm, and f_5: 480 nm with an exact frequency ratio of 1 : 2 : 3 : 4 : 5 by implementing a divide-by-three optical-frequency divider in the high ...
Gavara, Trivikramarao +5 more
core +3 more sources
Advanced Science, EarlyView.Recent advances in materials and device engineering enable continuous, real‐time monitoring of muscle activity via wearable and implantable systems. This review critically summarizes emerging technologies for tracking electrophysiological, biomechanical, and oxygenation signals, outlines fundamental principles, and highlights key challenges and ...
Zhengwei Liao +4 more
wiley +1 more source
Highly Efficient Thermal Tuning Interferometer in Lithium Niobate Thin Film Using Air Bridge
IEEE Photonics Journal, 2021 We propose and demonstrate a type of highly efficient thermally tuned interferometer in lithium niobate on insulator (LNOI) thin film using an air bridge structure.
Guanyu Chen, Hong-Lin Lin, Aaron Danner
doaj +1 more source
Navigating the Ethereal Tightrope: The Nanogenerator Manipulates Neurons for Immune Equilibrium
Advanced Science, EarlyView.This review explores how nanogenerators modulate neuroimmune responses, offering innovative strategies for treating neurological disorders. By interfacing with neural pathways, they enable precise control of immune activity, especially via vagus nerve stimulation.
Jia Du +5 more
wiley +1 more source
A High-Sensitivity Gravimetric Biosensor Based on S1 Mode Lamb Wave Resonator
Sensors, 2022 The development of MEMS acoustic resonators meets the increasing demand for in situ detection with a higher performance and smaller size. In this paper, a lithium niobate film-based S1 mode Lamb wave resonator (HF-LWR) for high-sensitivity gravimetric ...
Tiancheng Luo +7 more
doaj +1 more source
Limitations to THz generation by optical rectification using tilted pulse fronts
, 2014 Terahertz (THz) generation by optical rectification (OR) using tilted-pulse-fronts is studied. One-dimensional (1-D) and 2-D spatial models, which simultaneously account for (i) the nonlinear coupled interaction of the THz and optical radiation, (ii ...
Carbajo, Sergio +4 more
core +1 more source
Miniature Robotic Swimmer with Precise 2D Motion Control via Acoustic Vortex‐Induced Propulsion
Advanced Science, EarlyView.In this work, a miniature robotic swimmer achieves precise 2D motion using sound waves with customized 3D‐printed lenses. Localized acoustic vortices drive both translation and rotation of the swimmer without mechanical parts. This contactless approach offers a novel route to controlled micro‐scale movement, with promising applications in biomedical ...
Chadi Ellouzi +6 more
wiley +1 more source