Laser

GREEN Laser Pointers

Green laser pointers first became commercially available in the late 1990’s when Diode Pumped Solid State Frequency Doubled (DPSSFD) laser technology was developed to deliver a 532nm beam. This technology involves a high power infrared laser diode at 808nm that pumps a tiny block of Nd:YVO4. This generates light at 1,064 nm which feeds a KTP intracavity frequency-doubler crystal to produce the green beam at 532 nm.

Green lasers are exceptionally visible because the human eye is most sensitive to light at 532nm. Even at the same power, green laser pointers appear far brighter and are visible at much greater distances than red laser pointers. Green lasers are excellent for use in large, well lit environments including the outdoors.

YELLOW Laser Pointers

Yellow laser pointers generate a 593nm beam. Yellow laser pointers are fully developed, but are not yet available in the United States due to patent restrictions.

BLUE Laser Pointers

Blue laser pointers generate a beautiful 473nm beam. They are available, but the cost is prohibitive at almost $1000.00 each! Read all about the fascinating history of blue lasers here.