Meaning of Q-switching in English:

Q-switching

Pronunciation /ˌkjuːˈswɪtʃɪŋ/

noun

Physics
  • The process of pumping a laser that has a low Q (degree to which it is undamped), and so cannot oscillate, and then suddenly increasing the Q so that the stored energy is released in a single pulse of very high power; the use of a Q -switch.

Origin

1960s; earliest use found in Journal of Applied Physics. Partly from Q + switching, and partly from either Q-switch or Q-switch + -ing.