Reflection-type vapor cell for micro atomic clocks using local anodic bonding of 45° mirrors
| Autor: | Tetsuya Ido, Masaya Toda, Yuichiro Yano, Masatoshi Kajita, Takahito Ono, Hitoshi Nishino, Motoaki Hara |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
education.field_of_study
Materials science business.industry Population Resonance 02 engineering and technology Type (model theory) 021001 nanoscience & nanotechnology Distributed Bragg reflector 01 natural sciences Atomic and Molecular Physics and Optics Atomic clock 010309 optics Reflection (mathematics) Planar Optics Anodic bonding 0103 physical sciences Atomic physics 0210 nano-technology education business |
| Zdroj: | Optics letters. 46(10) |
| ISSN: | 1539-4794 |
| Popis: | This Letter reports the design, fabrication, and evaluation of reflection-type planar vapor cells for chip-scale atomic clocks. The cell with 2–8 mm cavity length contains two 45° Bragg reflector mirrors assembled using a local anodic bonding. Coherent population trapping resonance of Rb atoms is observed, realizing an atomic clock operation. Allan deviations at an averaging time of 1 s are 2.2 × 1 0 − 10 and 9.5 × 1 0 − 11 for 2 mm long and 6 mm long vapor cells, respectively. These results show that planar vapor cells compatible with a system-in-package are feasible without degradation of clock stabilities compared to conventional vertically stacked cells. |
| Databáze: | OpenAIRE |
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