Spectroscopy
Videos
Spectroscopy is the field of study that measures and interprets electromagnetic spectra as it interacts with matter. In narrower contexts, spectroscopy is the precise study of color as generalized fro
A prism separates white light by dispersing it into its component colors, which can then be studied using spectroscopy.
High resolution spectrum of the Sun, showing the discrete line pattern created by elements in the stellar atmosphere
A huge diffraction grating at the heart of the ultra-precise ESPRESSO spectrograph
UVES is a high-resolution spectrograph on the Very Large Telescope.
Emission spectrum
Videos
The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to electrons making a transition from a high energy state to a
Spectroscopy
…Absorption is often determined by measuring the fraction of energy transmitted through the material, with absorption decreasing the transmitted portion. Emission spectroscopy: Emission indicates that radiative energy is released by the material. A material's blackbody spectrum is a spontaneous emission spectrum determined…
A demonstration of the 589 nm D2 (left) and 590 nm D1 (right) emission sodium D lines using a wick with salt water in a flame