Mie scattering, named after the German physicist Gustav Mie, refers to the scattering of electromagnetic radiation (such as light) by spherical particles. Unlike Rayleigh scattering, which is applicable to particles much smaller than the wavelength...

Ablation applied to polymers and chemical solids. Process of material removal that minimizes edge damage but will not heat...

An excited energy state of an atom or atomic system that has a longer lifetime than the ordinary excited state and typically...

FTIR (Fourier transform infrared) spectrometer is a powerful analytical instrument used to obtain an infrared spectrum of...

Attenuated total reflectance (ATR) spectroscopy is a technique used in analytical chemistry to obtain IR spectra of samples....

A liquid, usually of a specific refractive index and dispersion, serving as an interface between two solids to form a...

An instrument used to measure expansion of solids, liquids and gases.

Radiation emitted by electrons when they travel in circular orbits at speeds close to that of light. Synchrotron radiation...

The use of a reflective device, which can be fashioned from a variety of materials including gases, solids, dyes, aerosols,...

A semiconductor is a type of material that has electrical conductivity between that of a conductor and an insulator. In...

A method for obtaining the optical absorption spectra of solids, semisolids, liquids and gases. PAS is inherently...

The series of processes used to identify and evaluate crystal structure by using crystalline solids to diffract x-rays. In...

An instrument used to measure the refractive index of solids and liquids. Several types exist, the most common being the...

A nonradiative transition refers to a process in which an electron or an atom undergoes a change in its energy state without...

Van der Waals forces refer to the attractive or repulsive forces between molecules (or parts of molecules) that arise from...