Abstract

Increasing erbium concentration while minimizing the reduction of photoluminescence is an important task for achieving erbium-based high-gain materials for integrated photonics applications. Here, we demonstrate a strategy of controlled variation of Erbium density in the growth of erbium yttrium chloride silicate (EYCS) ((ErxY1-x)3(SiO 4)2Cl)) single crystal nanowires by systematically varying x between 0 and 1. We show that, as a trade-off between high Er density and suppressed upconversion, Er composition x = 0.3 provides the best compromise with the strongest photoluminescence. This optimized Er-composition corresponds to an Er density of 5×1021 cm-3, five times larger than the optimized Er density demonstrated previously for other thin film materials. We estimate that this optimized EYCS is promising in achieving optical gain exceeding 100 dB/cm.

Original languageEnglish (US)
Article number121902
JournalApplied Physics Letters
Volume103
Issue number12
DOIs
StatePublished - Sep 16 2013

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high gain
yttrium
erbium
silicates
nanowires
chlorides
optimization
single crystals
photoluminescence
photonics
estimates
thin films

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Erbium concentration control and optimization in erbium yttrium chloride silicate single crystal nanowires as a high gain material. / Yin, Leijun; Shelhammer, David; Zhao, Gejian; Liu, Zhicheng; Ning, Cun-Zheng.

In: Applied Physics Letters, Vol. 103, No. 12, 121902, 16.09.2013.

Research output: Contribution to journalArticle

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AU - Yin, Leijun

AU - Shelhammer, David

AU - Zhao, Gejian

AU - Liu, Zhicheng

AU - Ning, Cun-Zheng

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