| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize a light-microwave resonator, improve precision and stability, and facilitate manufacturing, regarding a rubidium atom oscillator of a gas cell resonance type which uses optical pumping. SOLUTION: A gas cell 13 enclosing rubidium gas is included in a microwave cavity resonator 1-2. The amount of light entering the gas cell 1-3 from a pumping light-source 1-1 is observed with a photo detector 1-5. An oscillation frequency is controlled by using light absorption characteristic in the gas cell 1-3 which corresponds to the microwave frequency. High permitivity material 1-9 having high thermal conductivity is stuck and installed internally on an inner wall surface of the cavity resonator 1-2. The gas cell 1-3 is fitted in a hole of the material 1-9. Heating property to the gas cell is improved, and power consumption is reduced so that a small-sized light-microwave resonator of high stability and high precision which is excellent in rising-up characteristic is constituted. A notched part is formed in a part of the material 1-9, and the resonance frequency is adjusted by adjusting the position relation between the notched part and an exciting antenna 1-4.
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