Results 61 to 70 of about 7,095 (298)
Physical Review Accelerators and BeamsUltrashort broadband THz radiation is an essential tool for investigating nonlinear phenomena and other frontier scientific research. Here, we propose a novel scheme that leverages the nonlinear longitudinal space-charge oscillation process to amplify ...
Shaohang Ma +4 more
doaj +1 more source
Oscillation structure determines communication accuracy.
, 2012 (A–D) Example firing rate modulation of the target (red) and distracting inputs (gray) over the 100 ms integration time. Gain modulation (blue) produced by the optimized receiving network.
Dimitri M. Kullmann (120877) +1 more
core +1 more source
Coherent control of broadband vacuum squeezing [PDF]
, 2007 We present the observation of optical fields carrying squeezed vacuum states at sideband frequencies from 10 Hz to above 35 MHz. The field was generated with type-I optical parametric oscillation below threshold at 1064 nm.
Vahlbruch, H. +7 more
core +1 more source
Spacer‐Less Substrate‐Integrated Metasurface for Near‐Unity Terahertz Absorption
Advanced Optical Materials, EarlyView.ABSTRACT Although conventional metal‐insulator‐metal (MIM) terahertz (THz) absorbers can provide near‐unity absorption, their multilayer stacks inevitably introduce additional thickness, mass, and residual stress, which limit their compatibility with THz thermal sensing platforms.
Zihao Zhao +6 more
wiley +1 more source
Network Asynchrony Underlying Increased Broadband Gamma Power. [Elektronisk resurs]
, 2021 Synchronous activity of cortical inhibitory interneurons expressing parvalbumin (PV) underlies expression of cortical γ rhythms. Paradoxically, deficient PV inhibition is associated with increased broadband γ power in the local field potential. Increased
Zacharias, LR +6 more
core +1 more source
When Cubic is Not Isotropic: Phonon–Exciton Decoupling in CuInSnS4 Single Crystals
Advanced Optical Materials, EarlyView.A cubic CuInSnS4 crystal does not fully play by cubic rules. While phonons follow the average iso‐tropic lattice symmetry, the disorder‐localized excitons break away, showing strong, and reproduci‐ble polarization‐dependent emission. This work shows how intrinsic cation disorder can turn a mac‐roscopically cubic material into a source of hidden ...
Lara Kim Linke +11 more
wiley +1 more source
Numerical analysis and experimental verification of broadband tristable energy harvesters
, 2018 This paper analyzes the dynamic characteristics of broadband tristable energy harvesters to reveal their response mechanism via a bifurcation diagram, the corresponding frequency spectral analysis and the phase portrait topology.
Junyi Cao +3 more
core +1 more source
Advanced Science, EarlyView.The pholidota‐inspired electronic skin is successfully constructed, originally realized four‐state reversible switching of terahertz‐wave reflection, absorption, transmission, and secondary reflection. In response to external demands, it issues deformation instructions, verifies the deformation state after the equipment executes the action, and thus ...
Shangjing Li +4 more
wiley +1 more source
Period-doubling route to chaos in perturbed period-one nonlinear dynamics
Results in PhysicsAn all-optical method is proposed for destabilizing the period-one (P1) nonlinear dynamic state using a system of three cascaded semiconductor lasers across two optical injection stages.
Mohammad AlMulla
doaj +1 more source
Smart Nanotechnologies for Multimodal Neuromodulation and Brain Interfacing
Advanced Science, EarlyView.Recent advances in smart nanotechnologies are expanding the toolbox for brain interfacing, from wireless neuromodulation and high‐resolution sensing to targeted delivery within the central nervous system. By combining responsive nanomaterials with bioinspired design, these platforms enable multimodal interactions with neurons and glia, while also ...
Tommaso Curiale +6 more
wiley +1 more source