Weblinear optical-field-triggered photoemission in a dc-biased asymmetric metal-vacuum-metal nanojunction, by exactly solving the time-dependent Schrödinger equation (TDSE). Our model is valid in various emission regimes spanning multiphoton absorption and emission, photon-assisted tun-neling, optical field emission, and dc field emission. We WebOptical-field driven electron tunneling in nanojunctions has made demonstrable progress toward the development of ultrafast charge transport devices at subfemtosecond time …
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WebApr 15, 2024 · Our detector uses field-driven photoemission from resonant nanoantennas to create attosecond electron bursts that probe the electric field of weak optical waveforms. … The time-dependent ionization probability from a tungsten nanotip was approximated by the Fowler–Nordheim formula as5,17,49,50: in which E(t) is the electric-field waveform of the driving pulses, ϕ is the work function of the metal and m, ħ and e are electron mass, reduced Planck’s constant and electron charge, … See more To theoretically estimate the near-field enhancement in the vicinity of the tungsten nanotip, we numerically solved Maxwell’s equations by means of three … See more The key objective of HAS is to retrieve the temporal structure of an attosecond electron pulse wave packet ψr(t) at the moment of its recollision on its parent … See more The above discussion suggests that, by tracing the variation of the cutoff energy in a HAS spectrogram, we can obtain AHAS(t) (red curves in Extended Data Fig. … See more popup button form
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Webtical field by a sine function gives in the Fourier plane the 2D convolution between the optical field in the image plane and two delta functions. In other words, applying a sine … WebNov 8, 2024 · By exactly solving the one-dimensional time-dependent Schrödinger equation, we construct an analytical solution for nonlinear photoelectron emission in a nanoscale metal–vacuum–metal junction … WebApr 7, 2024 · Centre for Optical and Electromagnetic Research, National Engineering Research Center for Optical Instruments, College of Optical Science and Engineering, Zhejiang University, Hangzhou, 310058 P. R. China ... In Figure S7 of the Supporting Information, the far-field emission is highly linearly-polarized as determined by the … sharon kiefer idaho fish and game