Metrology

Atomic Trapping and Cooling

Laser cooling and trapping is the ability to cool atoms down to unprecedented kinetic temperatures, and to confine and support isolated atoms in “atom traps”. This unique new level of control of atomic motion allows researchers to study the behavior of atoms and quantum mechanical properties. Read more

Photon Doppler Velocimetry, PDV

Photon Doppler Velocimetry (PDV) is a one-dimensional Fourier transform analysis of a heterodyne laser interferometry signal. It was developed at Lawrence Livermore National Laboratory. PDV is often used in the shock physics community as an adjunct or replacement for VISAR in the instrumentation of high-strain-rate events. Contemporary data acquisition technology and the availability of robust single-frequency lasers now leverage the assembly of these systems within reasonable budgets. Read more