The development of active optical clock
Abstract The atomic clocks, whether operating at optical or microwave region, can be divided into two categories according to their working mode, namely the passive clocks and active clocks. The passive clocks, whose standard frequency is locked to an ultra-narrow atomic spectral line, such as laser...
Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
Springer
2023-04-01
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Series: | AAPPS Bulletin |
Subjects: | |
Online Access: | https://doi.org/10.1007/s43673-023-00079-2 |