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Communication Dans Un Congrès Année : 2023

First Measurements of Spectral Hole Line Shifts at Dilution Temperatures for Laser Stabilization

Résumé

Here we report on the status of the Spectral-Hole Burning (SHB) laser-stabilization experiment at LNE-SYRTE, focusing on our first measurements of thermally induced frequency shifts of spectral holes at dilution temperatures (T0 < 1 K). The effect, which is predicated to scale as T 4 , produces shifts of order 1-10 Hz over its ≈ 517 THz center at these temperatures. To meet this challenge, we introduced a novel temperaturemodulation based approach to spectral-hole line shift measurements, allowing integration time of the small signals. We find a preliminary value for the line-shift constant of Eu 3+ :Y2SiO5, α = 107 Hz K-4 , a first at dilution temperatures.
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Dates et versions

hal-04460611 , version 1 (15-02-2024)

Identifiants

  • HAL Id : hal-04460611 , version 1

Citer

M. T. Hartman, X Lin, B Pointard, R Le Targat, B Fang, et al.. First Measurements of Spectral Hole Line Shifts at Dilution Temperatures for Laser Stabilization. 2023 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS), May 2023, Toyama, Japan. ⟨hal-04460611⟩
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