The laser at 50.
Fifty years after the first beam of coherent light shone out of a ruby crystal, lasers have expanded in every direction, ranging from as big as three football fields to as small as a few layers of atoms, producing wavelengths from deep in the X-ray regime to far into the infrared. Engineers are push...
| Published in: | IEEE spectrum 47, 5 (2010). |
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| Main Author: | |
| Format: | Article |
| Language: | English |