(Invited) Two-color soliton meta-atoms and molecules

Two-color multistep cascading and parametric soliton-induced waveguides.

We introduce the concept of two-color multistep cascading for vectorial parametric wave mixing in optical media with quadratic (second-order or chi(2)) nonlinear response. We demonstrate that the multistep cascading allows light-guiding-light effects with quadratic spatial solitons. With the help of the so-called "almost exact" analytical solutions, we describe the properties of parametric wave...

Atoms and Molecules

An atom is a system formed by a pack of electrically charged particles Q called nucleus and N identical particles of charge q − . Molecules are systems with several nuclei which may not necessarily be identical . In almost all matter, the nuclei are conglomerates of neutrons and protons and the N remaining particles are electrons. Other atomic systems will be described in the exotic atoms section.

Molecules, Atoms, and Nuclei

Quantum Mechanics of Atoms & Molecules

These are a set of notes I have made, based on lectures given by Y.Xian at the University of Manchester Jan-June ’08. Please e-mail me with any comments/corrections: [email protected].

Ultrafast Electron Diffraction of Atoms and Molecules

A new scientific instrument at the Department of Energy's SLAC National Accelerator Laboratory promises to capture some of nature's speediest processes. It uses a method known as ultrafast electron diffraction (UED) and can reveal motions of electrons and atomic nuclei within molecules that take place in less than a tenth of a trillionth of a second – information that will benefit groundbreakin...