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Kvantovaya Elektronika, 1981, Volume 8, Number 5, Pages 1018–1026 (Mi qe6920)  

Mechanisms of energy transfer to $2\mu$ lasing channel in a BaYb$_2$F$_8$:Ho$^{3+}$ crystal

B. M. Antipenko


Abstract: It was found that when the energy of neodymium laser radiation absorbed in a $BaYb_2F_8:Ho^{3+}$ (0.5%), crystal reached 1 J/cm$^3$, the obvious mechanism of population of the $ ^5I_7$ state of the activator involving nonradiative energy transfer from the sensitizer ions $|^2F_{5/2}(Yb), ^5I_8(Ho)>\to|^2F_{7/2}(Yb), ^5I_6(Ho)>$ followed by the relaxation process $| ^5I_6(Ho)>\sim\to| ^5I_7(Ho)>)$ changed to a cooperative process consisting of three successive stages of step-like sensitization $|^2F_{5/2}(Yb), ^5I_8(Ho)>\to|^2F_{7/2}(Yb), ^5I_6(Ho)>$; $|^2F_{5/2}(Yb), ^5I_6(Ho)>\to|^2F_{7/2}(Yb), ^5S_2(Ho)$; $|^2F_{5/2}(Yb), ^5S_2(Ho)>\to|^2F_{7/2}(Yb), ^3H_6(Ho)>$, and two successive stages of intercenter cross relaxation $|^5G_4(Ho), ^2F_{7/2}(Yb)>\to|^5F_5(Ho), ^2F_{5/2}(Yb)>$; $|^5F_5(Ho), ^2F_{7/2}(Yb)>\to|^5I_7(Ho), ^2F_{5/2}(Yb)>$. Ways of optimizing the active medium of a laser converter to the $2\mu$ wavelength were determined for $BaYb_2F_8:Ho^{3+}$. The feasibility of constructing an anti-Stokes ($1.06\to0.75\mu$) laser frequency converter was analyzed.

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English version:
Soviet Journal of Quantum Electronics, 1981, 11:5, 607–612

Bibliographic databases:

UDC: 621.373:535
PACS: 42.55.Rz
Received: 15.04.1980
Revised: 25.08.1980

Citation: B. M. Antipenko, “Mechanisms of energy transfer to $2\mu$ lasing channel in a BaYb$_2$F$_8$:Ho$^{3+}$ crystal”, Kvantovaya Elektronika, 8:5 (1981), 1018–1026 [Sov J Quantum Electron, 11:5 (1981), 607–612]

Citation in format AMSBIB
\Bibitem{Ant81}
\by B.~M.~Antipenko
\paper Mechanisms of energy transfer to $2\mu$ lasing channel in a BaYb$_2$F$_8$:Ho$^{3+}$ crystal
\jour Kvantovaya Elektronika
\yr 1981
\vol 8
\issue 5
\pages 1018--1026
\mathnet{http://mi.mathnet.ru/qe6920}
\transl
\jour Sov J Quantum Electron
\yr 1981
\vol 11
\issue 5
\pages 607--612
\crossref{https://doi.org/10.1070/QE1981v011n05ABEH006920}
\isi{http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&DestLinkType=FullRecord&DestApp=ALL_WOS&KeyUT=A1981LR87900012}


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