Defect enhancement of Er emission in single crystal Er2O3

H. Wu; A. Dodson; A. al-Wahish; A. O'Hara; A. Rai; A. B. Posadas; Y. Q. Wang; B. Lawrie; M. Titze; J. Davidson; A. Hmelo; A. A. Demkov; Kalman Varga; L. C. Feldman; N. H. Tolk

doi:10.1063/5.0264573

Defect enhancement of Er emission in single crystal Er₂O₃

H. Wu
, A. Dodson
, A. al-Wahish
, A. O'Hara
, A. Rai
, A. B. Posadas
, Y. Q. Wang
, B. Lawrie
, M. Titze
, J. Davidson
, A. Hmelo
, A. A. Demkov
, Kalman Varga
, L. C. Feldman
, N. H. Tolk

Los Alamos National Laboratory

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

We report observations of crystal defect induced modifications in the laser-excited Er³⁺ photoluminescence spectra of single-crystal Er₂O₃ thin films. These include marked enhancement of transition intensities known to be weak or nonexistent in as-grown samples. In this Letter, we examine the temperature and defect density dependence of the measurements and suggest photophysical processes that may account for these unexpected results.

Original language	English
Article number	231102
Journal	Applied Physics Letters
Volume	126
Issue number	23
DOIs	https://doi.org/10.1063/5.0264573
State	Published - Jun 9 2025

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10.1063/5.0264573

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title = "Defect enhancement of Er emission in single crystal Er2O3",

abstract = "We report observations of crystal defect induced modifications in the laser-excited Er3+ photoluminescence spectra of single-crystal Er2O3 thin films. These include marked enhancement of transition intensities known to be weak or nonexistent in as-grown samples. In this Letter, we examine the temperature and defect density dependence of the measurements and suggest photophysical processes that may account for these unexpected results.",

author = "H. Wu and A. Dodson and A. al-Wahish and A. O'Hara and A. Rai and Posadas, \{A. B.\} and Wang, \{Y. Q.\} and B. Lawrie and M. Titze and J. Davidson and A. Hmelo and Demkov, \{A. A.\} and Kalman Varga and Feldman, \{L. C.\} and Tolk, \{N. H.\}",

year = "2025",

month = jun,

day = "9",

doi = "10.1063/5.0264573",

language = "English",

volume = "126",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Defect enhancement of Er emission in single crystal Er2O3

AU - Wu, H.

AU - Dodson, A.

AU - al-Wahish, A.

AU - O'Hara, A.

AU - Rai, A.

AU - Posadas, A. B.

AU - Wang, Y. Q.

AU - Lawrie, B.

AU - Titze, M.

AU - Davidson, J.

AU - Hmelo, A.

AU - Demkov, A. A.

AU - Varga, Kalman

AU - Feldman, L. C.

AU - Tolk, N. H.

PY - 2025/6/9

Y1 - 2025/6/9

N2 - We report observations of crystal defect induced modifications in the laser-excited Er3+ photoluminescence spectra of single-crystal Er2O3 thin films. These include marked enhancement of transition intensities known to be weak or nonexistent in as-grown samples. In this Letter, we examine the temperature and defect density dependence of the measurements and suggest photophysical processes that may account for these unexpected results.

AB - We report observations of crystal defect induced modifications in the laser-excited Er3+ photoluminescence spectra of single-crystal Er2O3 thin films. These include marked enhancement of transition intensities known to be weak or nonexistent in as-grown samples. In this Letter, we examine the temperature and defect density dependence of the measurements and suggest photophysical processes that may account for these unexpected results.

UR - https://www.scopus.com/pages/publications/105008061565

U2 - 10.1063/5.0264573

DO - 10.1063/5.0264573

M3 - Article

SN - 0003-6951

VL - 126

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 23

M1 - 231102

ER -

Defect enhancement of Er emission in single crystal Er2O3

Abstract

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Defect enhancement of Er emission in single crystal Er₂O₃