Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2504.19768 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866914034860687360 |
|---|---|
| author | Khalutornykh, Leonid Saakyan, Sergey Nazarov, Alexander Zelener, Boris B. |
| author_facet | Khalutornykh, Leonid Saakyan, Sergey Nazarov, Alexander Zelener, Boris B. |
| contents | We present the first implementation of modulation transfer spectroscopy (MTS) on the D$1$ line of $^7$Li, carried out in a compact heat-pipe vapor cell with cold windows. By varying the pump and probe intensities and polarization configurations, we systematically map the MTS error-signal amplitude, effective linewidth, and slope for the ground-state crossover resonance $F=1\times2\rightarrow F'=2$. We observe Rabi-induced power broadening and identify optimal conditions for laser frequency stabilization via tightly focused beams with total power below 1 mW. The lin$\perp$lin polarization configuration yields a sharp, symmetric, high-contrast error signal with a maximal slope. Our findings establish the MTS spectrum of the $^7$Li D1 line transitions as a reliable frequency reference for quantum technology and ultracold atom experiments, particularly in scenarios where frequency stabilization must be achieved with low laser optical power. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_19768 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Modulation transfer spectroscopy of $^7$Li D1 line Khalutornykh, Leonid Saakyan, Sergey Nazarov, Alexander Zelener, Boris B. Atomic Physics We present the first implementation of modulation transfer spectroscopy (MTS) on the D$1$ line of $^7$Li, carried out in a compact heat-pipe vapor cell with cold windows. By varying the pump and probe intensities and polarization configurations, we systematically map the MTS error-signal amplitude, effective linewidth, and slope for the ground-state crossover resonance $F=1\times2\rightarrow F'=2$. We observe Rabi-induced power broadening and identify optimal conditions for laser frequency stabilization via tightly focused beams with total power below 1 mW. The lin$\perp$lin polarization configuration yields a sharp, symmetric, high-contrast error signal with a maximal slope. Our findings establish the MTS spectrum of the $^7$Li D1 line transitions as a reliable frequency reference for quantum technology and ultracold atom experiments, particularly in scenarios where frequency stabilization must be achieved with low laser optical power. |
| title | Modulation transfer spectroscopy of $^7$Li D1 line |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2504.19768 |