Anomalous sub-kelvin thermal frequency shifts of ultra narrow-linewidth solid state emitters

Fuente: arXiv
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Autori principali: Lin, X., Hartman, M. T., Pointard, B., Targat, R. Le, Goldner, P., Seidelin, S., Fang, B., Coq, Y. Le
Natura: Preprint
Pubblicazione: 2024
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author Lin, X.
Hartman, M. T.
Pointard, B.
Targat, R. Le
Goldner, P.
Seidelin, S.
Fang, B.
Coq, Y. Le
author_facet Lin, X.
Hartman, M. T.
Pointard, B.
Targat, R. Le
Goldner, P.
Seidelin, S.
Fang, B.
Coq, Y. Le
contents We investigate the frequency response of narrow spectral holes in a doped crystal structure as a function of temperature below 1 K. We identify a particular regime in which this response significantly deviates from the expected two-phonon Raman scattering theory. Namely, near 290 mK, we observed a behaviour exhibiting a temperature-dependent frequency shift of zero, to first-order. This is of particular interest for applications which require high frequency-stability, such as laser frequency stabilization, as by operating the scheme at this specific point would result in the spectral hole frequency being highly immune to temperature fluctuations, providing the potential for a laser fractional frequency instability as low as $\mathrm{\sim6\times10^{-22}}$ at 1 s.
format Preprint
id arxiv_https___arxiv_org_abs_2411_16687
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Anomalous sub-kelvin thermal frequency shifts of ultra narrow-linewidth solid state emitters
Lin, X.
Hartman, M. T.
Pointard, B.
Targat, R. Le
Goldner, P.
Seidelin, S.
Fang, B.
Coq, Y. Le
Optics
We investigate the frequency response of narrow spectral holes in a doped crystal structure as a function of temperature below 1 K. We identify a particular regime in which this response significantly deviates from the expected two-phonon Raman scattering theory. Namely, near 290 mK, we observed a behaviour exhibiting a temperature-dependent frequency shift of zero, to first-order. This is of particular interest for applications which require high frequency-stability, such as laser frequency stabilization, as by operating the scheme at this specific point would result in the spectral hole frequency being highly immune to temperature fluctuations, providing the potential for a laser fractional frequency instability as low as $\mathrm{\sim6\times10^{-22}}$ at 1 s.
title Anomalous sub-kelvin thermal frequency shifts of ultra narrow-linewidth solid state emitters
topic Optics
url https://arxiv.org/abs/2411.16687