Correlated inhomogeneous absorption profiles across distinct optical transitions in a rare-earth doped crystal

Fuente: arXiv
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Main Authors: Segur, Flora, Welinski, Sacha, Ferrier, Alban, Berger, Perrine, Louchet-Chauvet, Anne
Format: Preprint
Published: 2026
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author Segur, Flora
Welinski, Sacha
Ferrier, Alban
Berger, Perrine
Louchet-Chauvet, Anne
author_facet Segur, Flora
Welinski, Sacha
Ferrier, Alban
Berger, Perrine
Louchet-Chauvet, Anne
contents In rare-earth ion-doped crystals, inhomogeneous absorption profiles reflect the distribution of local environments experienced by individual ions. While each optical transition probes this distribution differently, their fine spectral structures may retain correlations arising from shared local perturbations. In this paper, we present a low-temperature, high-resolution spectroscopic study in Er$^{3+}$:YSO of the transition $^{4}I_{15/2}$ - $^{4}I_{11/2}$ at 980 nm and compare it to the well-known transition $^{4}I_{15/2}$ - $^{4}I_{13/2}$ at 1.5 $μ$m. Using spectral hole burning on one transition while monitoring the other, we uncover for the first time spectral correlations between two optical transitions, providing new insight into the microscopic origin of inhomogeneous distributions in rare-earth-doped crystals.
format Preprint
id arxiv_https___arxiv_org_abs_2603_15630
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Correlated inhomogeneous absorption profiles across distinct optical transitions in a rare-earth doped crystal
Segur, Flora
Welinski, Sacha
Ferrier, Alban
Berger, Perrine
Louchet-Chauvet, Anne
Optics
Materials Science
Quantum Physics
In rare-earth ion-doped crystals, inhomogeneous absorption profiles reflect the distribution of local environments experienced by individual ions. While each optical transition probes this distribution differently, their fine spectral structures may retain correlations arising from shared local perturbations. In this paper, we present a low-temperature, high-resolution spectroscopic study in Er$^{3+}$:YSO of the transition $^{4}I_{15/2}$ - $^{4}I_{11/2}$ at 980 nm and compare it to the well-known transition $^{4}I_{15/2}$ - $^{4}I_{13/2}$ at 1.5 $μ$m. Using spectral hole burning on one transition while monitoring the other, we uncover for the first time spectral correlations between two optical transitions, providing new insight into the microscopic origin of inhomogeneous distributions in rare-earth-doped crystals.
title Correlated inhomogeneous absorption profiles across distinct optical transitions in a rare-earth doped crystal
topic Optics
Materials Science
Quantum Physics
url https://arxiv.org/abs/2603.15630