Flashtube
Videos
A flashtube produces an electrostatic discharge with an extremely intense, incoherent, full-spectrum white light for a very short time. A flashtube is a glass tube with an electrode at each end and is
Flashtubes of various sizes for laser pumping. The top three are xenon flashtubes. The last one is a krypton arc lamp, (shown for comparison).
Xenon flashtubes used on smartphones and cameras are usually externally triggered.
A ruby laser head, assembled and disassembled, revealing pumping cavity, the ruby rod, and two water-cooled flashtubes.
An externally triggered, 3.5 microsecond flash. The flash fully discharges before the arc can move away from the glass and fill the tube, causing excessive wear to the lamp.
Laser pumping
Videos
Laser pumping is the act of energy transfer from an external source into the gain medium of a laser. The energy is absorbed in the medium, producing excited states in its atoms. When for a period of t
Various laser pumping cavity configurations.