Crystal growth, low-temperature spectroscopy and multi-watt laser operation of Yb:Ca.sub.3./sub.NbGa.sub.3./sub.Si.sub.2./sub.O.sub.14./sub.

Zhang, X.; Loiko, P.; Mateos, X.; Serres, J.M.; Ren, J.; Guo, J.; Cheng, R.; Gao, C.; Dong, Q.; Jambunathan, Venkatesan; Lucianetti, Antonio; Mocek, Tomáš; Vilejshikova, E.; Griebner, U.; Petrov, V.; Wang, Z.; Guo, B.; Xu, X.; Aguilo, M.; Diaz, F.

doi:https://dx.doi.org/10.1016/j.jlumin.2018.01.004

Number of the records: 1

Crystal growth, low-temperature spectroscopy and multi-watt laser operation of Yb:Ca.sub.3./sub.NbGa.sub.3./sub.Si.sub.2./sub.O.sub.14./sub.

1.

SYSNO ASEP	0492541
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Crystal growth, low-temperature spectroscopy and multi-watt laser operation of Yb:Ca₃NbGa₃Si₂O₁₄
Author(s)	Zhang, X. (ES) Loiko, P. (RU) Mateos, X. (ES) Serres, J.M. (ES) Ren, J. (CN) Guo, J. (CN) Cheng, R. (CN) Gao, C. (CN) Dong, Q. (CN) Jambunathan, Venkatesan (FZU-D) Lucianetti, Antonio (FZU-D)_{RID, ORCID} Mocek, Tomáš (FZU-D)_{RID, ORCID, SAI} Vilejshikova, E. (BY) Griebner, U. (DE) Petrov, V. (DE) Wang, Z. (CN) Guo, B. (CN) Xu, X. (CN) Aguilo, M. (ES) Diaz, F. (ES)
Number of authors	20
Source Title	Journal of Luminescence. - : Elsevier - ISSN 0022-2313 Roč. 197, May (2018), s. 90-97
Number of pages	8 s.
Language	eng - English
Country	NL - Netherlands
Keywords	silicate crystals ; ytterbium ; crystal growth ; spectroscopy ; stark splitting ; stimulated emission
Subject RIV	BH - Optics, Masers, Lasers
OECD category	Optics (including laser optics and quantum optics)
R&D Projects	LO1602 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	EF15_006/0000674 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	LM2015086 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Institutional support	FZU-D - RVO:68378271
UT WOS	000425996400013
EID SCOPUS	85041489568
DOI	10.1016/j.jlumin.2018.01.004
Annotation	We report on the crystal growth, structure, room- and low-temperature (6 K) absorption and emission spectroscopy of a 3 at% Yb3+-doped trigonal ordered langasite-type silicate crystal, Ca3NbGa3Si2O14 (Yb: CNGS). The Rietveld refinement data are presented. Absorption, stimulated-emission and gain cross-sections are determined for the Yb3+ ion in CNGS for p and s polarizations. The maximum stimulated emission cross-section amounts to sigma(SE) = 0.97 x 10(-20) cm(-2) at 10(14) nm (sigma-polarization). The Stark splitting of the Yb3+ multiplets is resolved. Microchip laser operation is obtained with both a-cut and c-cut 3 at% Yb: CNGS samples under endpumping at 976 nm by a Volume Bragg Grating-stabilized diode laser. For the latter cut, the maximum output power reaches 7.61 W at 1048-1060 nm with a slope efficiency of 59%. By varying the output coupling, multiwatt emission over a 50 nm-broad spectral range is achieved.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2019

Number of the records: 1