Introduction to DAC Techniques. Raman Scattering.

Introduction to Neutron Scattering

Introduction to Neutron Scattering

Neutron scattering is a powerful and direct means for investigating the vibrational, magnetic, and structural properties of materials. In this paper, I will present a brief introduction to neutron scattering. I will discuss why neutrons are important, how and where you get neutrons, and types of neutron scattering. This paper is meant as brief introduction into an interesting field of science t...

General Introduction to Compton Scattering

The polarizability of a system defines its response to a quasistatic electromagnetic field. The induced dipole moment of two constituents of opposite charge, q and −q respectively, at a distance ~r is ~ d = q~r = α~ E, with α the electric polarizability and ~ E the electric field. If the force between the constituents is governed by Hooke’s law, the equilibrium is obtained for α = 2q/C where C ...

A Review of Raman, Surface-enhanced Raman Scattering (sers) and Related Spectroscopic Techniques Applied to Biomolecules in Biomaterials

The development of new biomaterials has gained increasing attention in the last decade. One of the most important aspects in the development of these new materials is to understand the chemical cues presents in the native niche. Among all the techniques currently available for measuring those interactions, Raman spectroscopy offers a unique and non-invasive tool for exploring the behavior of th...

Raman scattering due to disorder-induced polaritons

The selection rules for dipole and Raman activity can be relaxed due to local distortion of a crystalline structure. In this situation a dipole-inactive mode can become simultaneously active in Raman scattering and in dipole interaction with the electromagnetic field. The later interaction results in disorder-induced polaritons, which could be observed in first-order Raman spectra. We calculate...