| Autor: |
Nicolle, M., Becker, J. N., Weinzetl, C., Walmsley, I. A., Ledingham, P. M. |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Opt. Lett. 46, 2948-2951 (2021) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1364/OL.423642 |
| Popis: |
We experimentally study a broadband implementation of the atomic frequency comb (AFC) rephasing protocol with a cryogenically cooled Pr$^{3+}$:Y$_2$SiO$_5$ crystal. To allow for storage of broadband pulses, we explore a novel regime where the input photonic bandwidth closely matches the inhomogeneous broadening of the material $(\sim5\,\textrm{GHz})$, thereby significantly exceeding the hyperfine ground and excited state splitting $(\sim10\,\textrm{MHz})$. Through an investigation of different AFC preparation parameters, we measure a maximum efficiency of $10\%$ after a rephasing time of $12.5\,$ns. With a suboptimal AFC, we witness up to 12 rephased temporal modes. |
| Databáze: |
arXiv |
| Externí odkaz: |
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