Study of dopant distribution in Cr4+:YAG transparent ceramics and its use as passively Q-switching media in Nd:YAG laser delivering 38 mJ per pulse

Camille Perrière; Rémy Boulesteix; Alexandre Maître; Benjamin Forestier; Alain Jalocha; Alain Brenier

doi:10.1016/j.omx.2021.100107

Study of dopant distribution in Cr⁴⁺:YAG transparent ceramics and its use as passively Q-switching media in Nd:YAG laser delivering 38 mJ per pulse

Camille Perrière, Rémy Boulesteix, Alexandre Maître, Benjamin Forestier, Alain Jalocha, Alain Brenier

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

Abstract

In this work, the role of elaboration parameters (i.e. chemical composition and heat treatments) of Cr:YAG ceramics on their microstructural, optical and laser properties was investigated. Transparent ceramics were manufactured by solid-state reactive sintering under vacuum. Spatial distribution of sintering additives and luminescent dopant (Ca, Mg, Cr³⁺ and Cr⁴⁺) has been determined by coupling TEM, LSFI and NanoSIMS complementary techniques. Ca and Mg were found to segregate at grain boundaries whereas Cr appears to be homogenously distributed in Cr:YAG ceramics. Samples were used as saturable absorber of Nd:YAG laser and exhibited good optical properties, i.e. saturation fluence of 4500 J m⁻², laser pulse energy of 38.8 mJ with pulse duration of 45 ns.

Original language	English
Article number	100107
Journal	Optical Materials: X
Volume	12
DOIs	https://doi.org/10.1016/j.omx.2021.100107
Publication status	Published - 1 Dec 2021
Externally published	Yes

Keywords

Laser
Saturable absorber
Tetravalent chromium
Transparent ceramics
YAG

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10.1016/j.omx.2021.100107

Cite this

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title = "Study of dopant distribution in Cr4+:YAG transparent ceramics and its use as passively Q-switching media in Nd:YAG laser delivering 38 mJ per pulse",

abstract = "In this work, the role of elaboration parameters (i.e. chemical composition and heat treatments) of Cr:YAG ceramics on their microstructural, optical and laser properties was investigated. Transparent ceramics were manufactured by solid-state reactive sintering under vacuum. Spatial distribution of sintering additives and luminescent dopant (Ca, Mg, Cr3+ and Cr4+) has been determined by coupling TEM, LSFI and NanoSIMS complementary techniques. Ca and Mg were found to segregate at grain boundaries whereas Cr appears to be homogenously distributed in Cr:YAG ceramics. Samples were used as saturable absorber of Nd:YAG laser and exhibited good optical properties, i.e. saturation fluence of 4500 J m−2, laser pulse energy of 38.8 mJ with pulse duration of 45 ns.",

keywords = "Laser, Saturable absorber, Tetravalent chromium, Transparent ceramics, YAG",

author = "Camille Perri{\`e}re and R{\'e}my Boulesteix and Alexandre Ma{\^i}tre and Benjamin Forestier and Alain Jalocha and Alain Brenier",

note = "Publisher Copyright: {\textcopyright} 2021 The Authors",

year = "2021",

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doi = "10.1016/j.omx.2021.100107",

language = "English",

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T1 - Study of dopant distribution in Cr4+:YAG transparent ceramics and its use as passively Q-switching media in Nd:YAG laser delivering 38 mJ per pulse

AU - Perrière, Camille

AU - Boulesteix, Rémy

AU - Maître, Alexandre

AU - Forestier, Benjamin

AU - Jalocha, Alain

AU - Brenier, Alain

PY - 2021/12/1

Y1 - 2021/12/1

N2 - In this work, the role of elaboration parameters (i.e. chemical composition and heat treatments) of Cr:YAG ceramics on their microstructural, optical and laser properties was investigated. Transparent ceramics were manufactured by solid-state reactive sintering under vacuum. Spatial distribution of sintering additives and luminescent dopant (Ca, Mg, Cr3+ and Cr4+) has been determined by coupling TEM, LSFI and NanoSIMS complementary techniques. Ca and Mg were found to segregate at grain boundaries whereas Cr appears to be homogenously distributed in Cr:YAG ceramics. Samples were used as saturable absorber of Nd:YAG laser and exhibited good optical properties, i.e. saturation fluence of 4500 J m−2, laser pulse energy of 38.8 mJ with pulse duration of 45 ns.

AB - In this work, the role of elaboration parameters (i.e. chemical composition and heat treatments) of Cr:YAG ceramics on their microstructural, optical and laser properties was investigated. Transparent ceramics were manufactured by solid-state reactive sintering under vacuum. Spatial distribution of sintering additives and luminescent dopant (Ca, Mg, Cr3+ and Cr4+) has been determined by coupling TEM, LSFI and NanoSIMS complementary techniques. Ca and Mg were found to segregate at grain boundaries whereas Cr appears to be homogenously distributed in Cr:YAG ceramics. Samples were used as saturable absorber of Nd:YAG laser and exhibited good optical properties, i.e. saturation fluence of 4500 J m−2, laser pulse energy of 38.8 mJ with pulse duration of 45 ns.

KW - Laser

KW - Saturable absorber

KW - Tetravalent chromium

KW - Transparent ceramics

KW - YAG

U2 - 10.1016/j.omx.2021.100107

DO - 10.1016/j.omx.2021.100107

M3 - Article

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SN - 2590-1478

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JO - Optical Materials: X

JF - Optical Materials: X

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