Abstract
Chip-scale atomic devices built around micro-fabricated alkali vapor cells are at the forefront of compact metrology and atomic sensors. We demonstrate a micro-fabricated vapor cell that is actively pumped to ultra-high-vacuum (UHV) to achieve laser cooling. A grating magneto-optical trap (GMOT) is incorporated with a 4 mm-thick Si/glass vacuum cell to demonstrate the feasibility of a fully miniaturized laser cooling platform. A two-step optical excitation process in rubidium is used to overcome surface-scatter limitations to the GMOT imaging. The unambiguous miniaturization and form-customizability made available with micro-fabricated UHV cells provide a promising platform for future compact cold-atom sensors.
Original language | English |
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Article number | 054001 |
Number of pages | 4 |
Journal | Applied Physics Letters |
Volume | 117 |
Issue number | 5 |
DOIs | |
Publication status | Published - 3 Aug 2020 |
Keywords
- atomic devices
- alkali vapor cells
- GMOT imaging