One of the mysteries of the English language finally explained.
A means of suddenly increasing or decreasing the Q of a laser (usually the former, done in order to produce a single pulse of very high power).
with object To use a Q-switch on (a laser), usually in order suddenly to increase the Q and produce a single pulse of very high power.
1960s; earliest use found in Journal of Applied Physics. From Q + switch<br>1960s; earliest use found in Journal of Applied Physics. From Q-switch.
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