Results 241 to 250 of about 59,852 (304)

Remote Magnetomechanical Neuromodulation Uncovers Therapeutic Mechanisms for Alleviating Parkinsonian Symptoms in Freely Moving Mice

Advanced Science, EarlyView.
Magnetomechanical neuromodulation using magnetic nanodiscs enables remote activation of neurons. In a hemiparkinsonian mouse model, alternating magnetic fields actuate the nanodiscs to generate torque that opens mechanosensitive ion channels within the subthalamic nucleus, thereby modulating basal ganglia motor circuitry.
Anouk Wolters, Lorenzo Signorelli, Christian Herff, Sophia Gimple, Renzo Riemens, Gunter Kenis, Kim Rijkers, Hamed Shabani, Jyh‐Jang Sun, Yasin Temel, Hans Clusmann, Danijela Gregurec, Sarah‐Anna Hescham   +12 more
wiley   +1 more source

Nanocurvature‐Activated Dipolar Polarization in M–N4 Single‐Atom Sites for High‐Performance Electromagnetic Wave Absorption

Advanced Science, EarlyView.
Increasing nanocurvature effectively enriches the local electron density of the M–N4 motif, which facilitates electron transfer from the metal center to nitrogen atoms. This electronic behavior intensifies the localization and asymmetric distribution of charge, thereby significantly amplifying the dipole moment and polarizability.
Daohu Sheng, Siyao Cheng, Mengmeng Zhang, Jinglei Zhang, Xufei Zhu, Weijin Li, Bo Zhang, Aming Xie   +7 more
wiley   +1 more source

Triggering avalanche-like ultraviolet photomultiplication phenomena in ultrathin amorphous/crystalline gallium nitride heterostructures. [PDF]

Sci Adv
Luo D, Zhang H, Yan Y, Chen W, Wang D, Yu H, Liu X, Kang Y, Memon MH, Gao Z, Luo Y, Liu S, Gu W, Ooi BS, Fu L, Liu S, Sun H.   +16 more
europepmc   +1 more source

Photogating Regimes in Graphene: Memory-Bearing and Reset-Free Operation. [PDF]

Nanomaterials (Basel)
Khaliq A, Xu H, Qadir A, Salman A, Du S, Ali M, Huang S.   +6 more
europepmc   +1 more source

Balancing positive and negative luminescence for thermoradiative signatureless communications. [PDF]

Light Sci Appl
Nielsen MP, Maier SA, Fuhrer MS, Ekins-Daukes NJ.   +3 more
europepmc   +1 more source

Terahertz semiconductor laser chaos. [PDF]

Nat Commun
Liu B, Silvestri C, Zhou K, Ma X, Wu S, Li Z, Wan W, Zhang Z, Zhang Y, Peng J, Zeng H, Wang C, Brambilla M, Columbo LL, Li H.   +14 more
europepmc   +1 more source

Unifying optical gain and electro-optical dynamics in Er-doped thin-film lithium niobate platform. [PDF]

Nat Commun
Wang Y, Shen B, Wang B, Yang S, Yao L, Chen R, Zhang Y, Wang H, Zhang X, Zhou P, Tao Z, Xing L, Lin Z, Wu Y, Li W, Sun D, Shu H, Wang X.   +17 more
europepmc   +1 more source

112.5 Gbit/s long reach passive optical network with over 31 dB power budget enabled by semiconductor optical amplifiers. [PDF]

Sci Rep
Reza AG, Venkatasubramani LN, Barry LP.
europepmc   +1 more source

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Semiconductor optical amplifiers

Conference Proceedings LEOS'96 9th Annual Meeting IEEE Lasers and Electro-Optics Society, 2002
Polarization insensitive semiconductor amplifiers are important devices for many applications. Their small size, high-gain, and ability to be turned on and off fast offer interesting possibilities for photonic switches. We have used a design to implement polarization insensitivity.
J.-M. Verdiell, M. Ziari, A. Mathur
  +4 more sources

semiconductor optical amplifiers

SPIE Newsroom, 1990
Semiconductor laser amplifiers have now proved their ability to improve the performance of single-mode fiber communication systems, at least in the laboratory stage. After a brief background review of optical amplification in communication systems, the principle of operation and main device characteristics of semiconductor optical amplifiers are ...
openaire   +1 more source