One-step theory of two-photon photoemission
نویسندگان
چکیده
منابع مشابه
Theory of two-photon photoemission spectroscopy of surfaces
We review the various theoretical approaches that have recently been developed to interpret the two-photon photoemission (2PPE) spectra from clean and adsorbate-covered metal surfaces. To discuss the most salient features of the 2PPE process in a simple framework we adopt a paradigmatic model system comprising the occupied initial continuum or discrete states, a discrete unoccupied intermediate...
متن کاملTwo-step four-photon absorption.
We report a theoretical investigation of effective four-photon absorption (4PA) process and propose a two-step 4PA model of three-photon- induced excited-state absorption (ESA). Based on three-level rate-equation theory, we find an analytical result for the effective 4PA coefficient that depends on the three-photon absorption (3PA) cross-section, excited-state photophysical properties, and lase...
متن کاملElementary Theory of One - Step
We settle in the negative the following Problem 51 (Comon{Dauchet, RTA'93 3], RTA'95 4]). Given an arbitrary nite term rewriting system R, is the rst-order theory of one-step rewriting (!R) decidable? Decidability would imply the decid-ability of the rst-order theory of encompassment (that is, being an instance of a subterm) 1], as well as several known decidability results in rewriting. (It is...
متن کاملResponse theory for time-resolved second-harmonic generation and two-photon photoemission
A unified response theory for the time-resolved nonlinear light generation and two-photon photoemission (2PPE) from metal surfaces is presented. The theory allows one to describe the dependence of the nonlinear optical response and the photoelectron yield, respectively, on the time dependence of the exciting light field. Quantum-mechanical interference effects affect the results significantly. ...
متن کاملElectron spectra of a self-assembled monolayer on gold: Inverse photoemission and two-photon photoemission spectroscopy
Ultraviolet photoemission spectroscopy, inverse photoemission spectroscopy, and two-photon photoemission spectroscopy are techniques commonly used to examine the electronic structure of surfaces and interfaces. We have used all three to study self-assembled monolayers of 4,4 0-bis(phenylethynyl)benzenethiol on gold, a system often studied for potential application in molecular electronic juncti...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2016
ISSN: 2469-9950,2469-9969
DOI: 10.1103/physrevb.94.125128