Ultrafast strong-field photoelectron emission from biased metal surfaces: exact solution to time-dependent Schrödinger Equation

Zhang, Peng; Lau, Y. Y.

doi:10.1038/srep19894

Cited by 68 publications

(63 citation statements)

References 44 publications

(100 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In other words the emitted current normalized to the surface area of the array in both 40x40 and 80x80 scales is very similar. As an example, current per unit surface area at a combination of 6.5 V DC voltage and 70 There are three most widely used approaches to theoretically understand the phenomena concerned with nonlinear interaction of laser and matter, the strong-field approximation [24], the semiclassical approach [25], and the direct solution to the time-dependent Schrödinger equation discussed by Zhang and Lau for a modulated triangular potential barrier [26]. Plotting the current-voltage characteristic curves in Fowler-Nordheim [27] format gives useful insight to the electron emission processes.…”

Section: Introductionmentioning

confidence: 99%

Plasmonic nano-arrays for enhanced photoemission and photodetection

Piltan

Sievenpiper

2018

J. Opt. Soc. Am. B

View full text Add to dashboard Cite

Efficient conversion of photons to electrical energy has a wide variety of applications including imaging, energy harvesting, and infrared detection. The coupling of electromagnetic radiation to free electron oscillations at a metal interface results in enhanced electric fields tightly confined to the surface. Taking advantage of this nonlinear light-matter interaction, this work presents resonant surfaces optimized for combining electrical and photonic excitations in order to liberate electrons in a vacuum-channel device for applications ranging from enhanced photoemission to infrared photodetection.

show abstract

Section: Introductionmentioning

confidence: 99%

Plasmonic nano-arrays for enhanced photoemission and photodetection

Piltan

Sievenpiper

2018

J. Opt. Soc. Am. B

View full text Add to dashboard Cite

show abstract

“…Since we need more details, we reprove the relevant claims. The main results are given in Corollaries 14,15. In this section it is convenient to work with the continuous equations (21). Its homogeneous part is…”

Section: Further Properties Of the Homogeneous Equationmentioning

confidence: 99%

Nonperturbative Time Dependent Solution of a Simple Ionization Model

Costin

Lebowitz

2018

Commun. Math. Phys.

View full text Add to dashboard Cite

A. We present a non-perturbative solution of the Schrödinger equation iψt(t, x) = −ψxx(t, x) − 2(1 + α sin ωt)δ(x)ψ(t, x), written in units in which = 2m = 1, describing the ionization of a model atom by a parametric oscillating potential. This model has been studied extensively by many authors, including us. It has surprisingly many features in common with those observed in the ionization of real atoms and emission by solids, subjected to microwave or laser radiation. Here we use new mathematical methods to go beyond previous investigations and to provide a complete and rigorous analysis of this system. We obtain the Borel-resummed transseries (multi-instanton expansion) valid for all values of α, ω, t for the wave function, ionization probability, and energy distribution of the emitted electrons, the latter not studied previously for this model. We show that for large t and small α the energy distribution has sharp peaks at energies which are multiples of ω, corresponding to photon capture. We obtain small α expansions that converge for all t, unlike those of standard perturbation theory. We expect that our analysis will serve as a basis for treating more realistic systems revealing a form of universality in di erent emission processes.Physically, |θ| 2 gives the probability of nding the particle in the eigenstate u b (x) and |Θ(k, t)| 2 is the probability density of the ionized electron in "quasi-free" states (continuous spectrum) with energies k 2 .

show abstract

“…Such dense and short electron bunches can become a popular platform for material and device imaging, inspection, and Carbon Nanotubes -Recent Progress failure analysis. They would enable exciting technological developments like four-dimensional time resolved electron microscopy, spectroscopy, holography, single-electron sources, and carrier envelope phase detection [21,22]. Many other investigations in terms of electrode materials are focused on CNTs and their modified or hybrid materials.…”

Section: Literature Reviewmentioning

confidence: 99%