Results 141 to 150 of about 4,739,194 (334)
Comment on "Gauge Invariance and $k_T$-Factorization of Exclusive Processes"
, 2009 We point out mistakes made in the one-loop calculation of some diagrams for the process $\pi \gamma^* \to \gamma$ in the preprint arXiv:0807.0296, and present correct results.
Belitsky +18 more
core +1 more source
Single-shot real-time video recording of a photonic Mach cone induced by a scattered light pulse
Science Advances, 2017 Lossless-encoding compressed ultrafast photography captures a movie of a photonic Mach cone at 100 billion frames per second. Ultrafast video recording of spatiotemporal light distribution in a scattering medium has a significant impact in biomedicine ...
Jinyang Liang +5 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.Multicolor optoelectronic synapses are realized by vertically integrating solution‐processed MoS2 thin‐film and SWCNT. The electronically disconnected but interactive MoS2 enables photon‐modulated remote doping, producing a bi‐directional photoresponse.
Jihyun Kim +8 more
wiley +1 more source
End-point singularities of Feynman graphs on the light cone
, 2002 We show that some Lorentz components of the Feynman integrals calculated in terms of the light-cone variables may contain end-point singularities which originate from the contribution of the big-circle integral in the complex k_ plane.
Anisovich +19 more
core +2 more sources
Near‐Infrared Organic Photovoltaic Electrodes for Subretinal Neurostimulation
Advanced Functional Materials, EarlyView.Organic photovoltaic electrodes based on the D18:Y6 blend enable precise and light‐controlled activation of retinal ganglion cells in a degenerating retina. NIR Light‐driven activation of retinal ganglion cells, tunable stimulation parameters, and biocompatibility with human retinal organoids highlight their potential for next‐generation prosthetics ...
Andrea Corna +10 more
wiley +1 more source
Nuclear Physics B, 1989 Abstract By introducing a variable lightlike vector k μ the light-cone gauge algebra of the bosonic string oscillators is rewritten in an apparently covariant form and it is shown that the apparent covariance becomes true covariance if, and only if, the parameters take the usual critical values.
J. Balog, L. O'Raifeartaigh
openaire +1 more source
Photonic Engineering Enables All‐Passive Upconversion Imaging with Low‐Intensity Near‐Infrared Light
Advanced Functional Materials, EarlyView.A passive upconversion imaging system enables the observation of scenes illuminated by low‐intensity incoherent near‐infrared light from 750 to 930 nm, by converting it into the visible without the use of external power. The upconverter is enabled by triplet–triplet annihilation in a bulk heterojunction, with absorption enhanced by plasmonic resonators
Rabeeya Hamid +13 more
wiley +1 more source
CELLULAR BASIS FOR ROD-CONE INTERACTIONS IN THE OUTER RETINA
Zdravniški Vestnik, 2002 Background. At least twice daily our retinas move between a light adapted, cone-dominated (photopic) state and a dark-adapted, color-blind and highly light-sensitive roddominated (scotopic) state.
David Križaj, Marko Hawlina
doaj
Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis
Advanced Functional Materials, EarlyView.An all‐optical method is presented for quantifying the density of boron vacancy spin defects in hexagonal boron nitride (hBN). By correlating Raman and photoluminescence signals with irradiation fluence, defect‐induced Raman modes are identified and established an relationship linking optical signatures to absolute defect densities. This enables direct
Atanu Patra +8 more
wiley +1 more source
B_c -> l nu gamma decay in light cone QCD
, 1998 The radiative B_c -> l nu gamma decay is investigated in the Standard Model in framework of the light cone QCD. The transition form factors and decay width are calculated.
Aliev, T. M., Savci, M.
core +1 more source