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electron trapping optical memory (s) (noun), ETOM
A method of erasable optical data storage in which information is stored by visible light, then read by illumination with an infrared source that returns trapped electrons to their ground state.

Erasability is achieved by using a higher infrared level than that which is used in reading.

This entry is located in the following units: electro-, electr-, electri- (page 53) memor-, memen- (page 1)