X-ray-laser interaction with matter and the role of multiphoton ionization: Free-electron-laser studies on neon and helium
نویسندگان
چکیده
A. A. Sorokin, M. Wellhöfer, S. V. Bobashev, K. Tiedtke, and M. Richter Physikalisch-Technische Bundesanstalt, Abbestraße 2-12, D-10587 Berlin, Germany Ioffe Physico-Technical Institute, Polytekhnicheskaya 26, 194021 St. Petersburg, Russia Universität Hamburg, Luruper Chaussee 149, D-22761 Hamburg, Germany Deutsches Elektronen-Synchrotron, Notkestraße 85, D-22603 Hamburg, Germany Received 6 December 2006; published 3 May 2007
منابع مشابه
Effect of Low-Power Helium-Neon Laser Irradiation on Collagen Fibril Thickness of Incisized Medial Collateral Ligament of Knee in Rat
Purpose: The aim of the present study is to investigate the effect of low-power Helium-Neon laser (LPL) on collagen fibril thickness of incisized medial collateral ligament of knee joint (MCL) in rat. Materials and Methods: MCL of right hind limb of 35 male adult sprague Dawley rat under general anesthesia were transversly incisized. Rats were randomly divitded into normal, control, first lase...
متن کاملCoherence and resonance effects in the ultra-intense laser-induced ultrafast response of complex atoms.
Both coherent pumping and energy relaxation play important roles in understanding physical processes of ultra-intense coherent light-matter interactions. Here, using a large-scale quantum master equation approach, we describe dynamical processes of practical open quantum systems driven by both coherent and stochastic interactions. As examples, two typical cases of light-matter interactions are ...
متن کاملEffect of Helium-Neon Laser Irradiation on Motility and Ultrastructure of Fresh and Frozen-Thawed Human Sperm
Purpose: Semen freezing is an important technique in human infertility treatment in many different patients but it damages sperms. Low-power lasers are physical agents that have biostimulatory effects. In this study, low-power helium-neon laser's (16J/cm2, one time irradiation) effect on motility and ultrastructure of fresh and frozen-thawed human sperm were studied. Materials and Methods: Thi...
متن کاملEffect of Low–Level Helium-Neon Laser Irradiation on the Release of Interleukin 6 and Basic Fibroblast Growth Factor from Cultured Human Fibroblasts in High Glucose Medium
Purpose: Low level laser therapy is suggested as a new therapeutic method in diabetic wound healing. This survey aimed to evaluate the effects of low level laser on human fibroblasts cultured in high glucose cultures. Materials and Methods: The human skin fibroblasts were cultured under standard condition. The cells were cultured in high glucose culture medium (15mM/L) for a week and two weeks ...
متن کاملSingle and Multiple Electron Dynamics in the Strong Field Limit
High precision photoelectron energy and angular distributions in helium and neon atoms for a broad intensity range reflect the change in the continuum dynamics that occurs as the ionization process evolves into the pure tunneling regime. Elastic rescattering of the laser-driven free electron from its parent ion core leaves a distinct signature on the spectra, providing a direct quantitative tes...
متن کامل