1.5 μm emission characteristics of Er3+-doped stoichiometric LiNbO3

Jeongan Kang; Myeongkyu Lee; Sunkyun Lee; Kisoo Lim; Kumaragurubaran Somu; Shunji Takekawa; Kenji Kitamura

doi:10.1063/1.1818348

1.5 μm emission characteristics of Er³⁺-doped stoichiometric LiNbO₃

Jeongan Kang, Myeongkyu Lee, Sunkyun Lee, Kisoo Lim, Kumaragurubaran Somu, Shunji Takekawa, Kenji Kitamura

Department of Materials Science and Engineering

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

18 Citations (Scopus)

Abstract

The 1.5 μn emission characteristics of stoichiometric LiNbO₃ crystals with different Er³⁺ doping levels of 0.2, 0.5, 1.0, and 2.0 mol % were investigated. All of the emission decays could be fitted by a single exponential curve. The lifetimes of the 1.5 μm transition (⁴I _13/2 → ⁴I_15/2) were measured to be 3.0-3. 2 ms, which are about 25% longer than those reported for conventional Er-doped congruent LiNbO₃. Our analysis showed that the longer lifetime in stoichiometric LiNbO₃ is likely to originate from the reduced density of intrinsic defects.

Original language	English
Pages (from-to)	4367-4369
Number of pages	3
Journal	Applied Physics Letters
Volume	85
Issue number	19
DOIs	https://doi.org/10.1063/1.1818348
Publication status	Published - 2004 Nov 8

Bibliographical note

Funding Information:
This work was supported by Grant No. R01-2002-000-00476 from the Basic Research Program of the Korea Science & Engineering Foundation.

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.1818348

Cite this

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title = "1.5 μm emission characteristics of Er3+-doped stoichiometric LiNbO3",

abstract = "The 1.5 μn emission characteristics of stoichiometric LiNbO3 crystals with different Er3+ doping levels of 0.2, 0.5, 1.0, and 2.0 mol % were investigated. All of the emission decays could be fitted by a single exponential curve. The lifetimes of the 1.5 μm transition (4I 13/2 → 4I15/2) were measured to be 3.0-3. 2 ms, which are about 25% longer than those reported for conventional Er-doped congruent LiNbO3. Our analysis showed that the longer lifetime in stoichiometric LiNbO3 is likely to originate from the reduced density of intrinsic defects.",

author = "Jeongan Kang and Myeongkyu Lee and Sunkyun Lee and Kisoo Lim and Kumaragurubaran Somu and Shunji Takekawa and Kenji Kitamura",

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AU - Kang, Jeongan

AU - Lee, Myeongkyu

AU - Lee, Sunkyun

AU - Lim, Kisoo

AU - Somu, Kumaragurubaran

AU - Takekawa, Shunji

AU - Kitamura, Kenji

N1 - Funding Information: This work was supported by Grant No. R01-2002-000-00476 from the Basic Research Program of the Korea Science & Engineering Foundation.

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Y1 - 2004/11/8

N2 - The 1.5 μn emission characteristics of stoichiometric LiNbO3 crystals with different Er3+ doping levels of 0.2, 0.5, 1.0, and 2.0 mol % were investigated. All of the emission decays could be fitted by a single exponential curve. The lifetimes of the 1.5 μm transition (4I 13/2 → 4I15/2) were measured to be 3.0-3. 2 ms, which are about 25% longer than those reported for conventional Er-doped congruent LiNbO3. Our analysis showed that the longer lifetime in stoichiometric LiNbO3 is likely to originate from the reduced density of intrinsic defects.

AB - The 1.5 μn emission characteristics of stoichiometric LiNbO3 crystals with different Er3+ doping levels of 0.2, 0.5, 1.0, and 2.0 mol % were investigated. All of the emission decays could be fitted by a single exponential curve. The lifetimes of the 1.5 μm transition (4I 13/2 → 4I15/2) were measured to be 3.0-3. 2 ms, which are about 25% longer than those reported for conventional Er-doped congruent LiNbO3. Our analysis showed that the longer lifetime in stoichiometric LiNbO3 is likely to originate from the reduced density of intrinsic defects.

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