The design and performance of a mechanical shutter for laser light based on
low voltage piezoelectric transducers is described. By focusing the beam t
hrough a pair of piezo-mounted slits, a transmission of 80%, a switching ti
me of 10 mu s, and an extinction ratio of 300:1 are obtained. (C) 2000 Amer
ican Institute of Physics. [S0034-6748(00)02601-0].