The narrow optical transitions and long spin coherence times of rare earth ions in crystals make them desirable for a number of applications ranging from solid-state spectroscopy and laser physics to ...

Washington, D.C., May 17, 2016 -- At a microscopic level, every material contains spontaneous sound waves -- acoustic phonons -- that have properties dependent on the material's mechanical properties.

The Euclid Mission is now in operation and already producing highly promising results across many fields of astrophysics, using both photometric and spectroscopic observations. Euclid’s primary goal ...