Results 141 to 150 of about 39,508 (311)
Advanced Science, EarlyView.This work develops a breathable potentiometric self‐powered pressure sensor with good wearability, using a non‐woven fabric substrate and hydrogel electrolyte. The sensor is integrated into a five‐channel smart glove to acquire reliable hand motion signals, which are processed by a CNN for identity verification and smart vehicle control in human ...
Qilong Zhang +10 more
wiley +1 more source
Revealing extraordinary properties of femtosecond laser writing in glass
Modification of transparent materials with ultrafast lasers has attracted considerable interest due to a wide range of applications including laser surgery, integrated optics, optical data storage, 3D micro- and nano-structuring [1].Three different types
Kazansky, P.G. +8 more
core
Optical generation of intense ultrashort magnetic pulses at the nanoscale
, 2013 Generating, controlling and sensing strong magnetic fields at ever shorter time and length scales is important for both fundamental solid-state physics and technological applications such as magnetic data recording.
Javier García de Abajo, F. +7 more
core +1 more source
Ultrafast Dynamics of Spin Current and Electron Temperature in Spintronic Terahertz Emitters
Advanced Science, EarlyView.This work quantifies optical‐pump‐induced THz transmission variations to reveal electron and lattice temperature dynamics and presents time‐resolved THz spectral maps for sub‐picosecond analysis. A 63 ± 8 fs time lag between THz emission and laser excitation is identified, serving as an intrinsic parameter limiting the upper frequency of spintronic THz
Yifan Wang +10 more
wiley +1 more source
Interaction of intense ulrashort light pulses with transparent materials reveal new interesting properties and phenomena. Recent demonstrations of 3D nanoripple formation, nonreciprocal photosensitivity, ultrafast laser calligraphy and light blade effect
Kazansky, P.G. +5 more
core
Ultrafast dynamics in InAs quantum dot and GaInNAs quantum well semiconductor heterostructures
, 2007 The quantum confined Stark effect (QCSE) and ultrafast absorption dynamics near the bandedge have been investigated in p-i-n waveguides comprising quantum confined heterostructures grown on GaAs substrates, for emission at 1.3um.
Malins, David B
core
Travelling-Wave Modeling of Dynamics of Ultrafast Reflective-Intracavity-Filter Tunable Fabry-Pérot Lasers for Optical Coherent Tomography [PDF]
, 2011 The dynamics of Fabry-Pérot external-cavity laser diodes frequency-swept at a high rate using a tunable intracavity filter are investigated by travelling-wave modelling. The effect of broad and narrow bandwidth filter properties and linewidth enhancement
Zhang, Lixiong
core
Imaging Electric Polarization Switching in Multilayer Graphene
Advanced Science, EarlyView.Domain wall sliding‐induced electric polarization switching is directly observed for the first time in multilayer graphene, enabled by a novel optical readout method. The polarization switching is realized upon application of global and local electric fields, and mechanical forces between neighboring polar domains of opposite out‐of‐plane polarizations
Zhou Zhou +10 more
wiley +1 more source
New science and art of femtosecond laser writing
, 2009 Common beliefs that laser writing does not change when reversing beam scan or propagation direction are challenged. Recently discovered phenomena of quill and non-reciprocal femtosecond laser writing in glasses and crystals are ...
Kazansky, Peter G.
core
Experimentation of Entangled photon-pairs generation using an ultrafast source at gigahertz [PDF]
, 2013 In this dissertation we will present the experimental study of polarization entangled photon pairs generation, through spontaneous parametric down conversion (SPDC) using an ultrafast source at gigahertz.
Bloise, Eduardo
core