Optical parameters and energy levels splitting of Ho3+ in Ho3+: GdVO4

doi:10.1088/1674-1056/17/12/055

Abstract

Abstract Ho³⁺: GdVO₄ is a new laser material suitable for high-power laser systems. In this paper we measure the absorption spectra of Ho³⁺ in the sample Ho³⁺: GdVO₄. The intensity parameters are calculated by using the Judd---Ofelt theory. Some predicted spectroscopic parameters, such as the spontaneous radiative transition rate, branching ratio and integrated emission cross section are dealt with. And we also compare the optical parameters with those of other materials. From these results, it is found that there are many transitions which have large oscillator strengths and large integrated emission cross sections. Especially the transitions such as ⁵F₄ → ⁵I₈, ⁵S₂ → ⁵I₈, ⁵F₅ → ⁵I₉ and ⁵I₇ → ⁵I₈are useful in solid-state lasers and other fields. Finally, we discuss the splitting of the energy levels of Ho³⁺ in the crystal GdVO₄ based on the group theory.

Keywords: Ho³⁺: GdVO₄ absorption spectrum intensity parameters laser material

Received: 21 May 2008
Revised: 19 July 2008
Accepted manuscript online:

PACS:	71.70.Ej	(Spin-orbit coupling, Zeeman and Stark splitting, Jahn-Teller effect)
	78.20.Ci	(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
	78.40.Ha	(Other nonmetallic inorganics)
	78.55.Hx	(Other solid inorganic materials)

Fund: Project supported by the National Natural Science Foundation of China (Grant No 10174008).

Cite this article:

Wang Ce (王策), Chen Xiao-Bo (陈晓波), Zhang Chun-Lin (张春林), Zhang Yun-Zhi (张蕴芝), Liu Jin-Ying (刘金英), Wang Ya-Fei (王亚非), Liu Da-He (刘大禾), Du Shuai (杜帅), Xu Xiao-Ling (徐小灵), Wang Lei (王磊), Li Song (李崧) Optical parameters and energy levels splitting of Ho³⁺ in Ho³⁺: GdVO₄ 2008 Chin. Phys. B 17 4656

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Optical parameters and energy levels splitting of Ho3+ in Ho3+: GdVO4

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Optical parameters and energy levels splitting of Ho³⁺ in Ho³⁺: GdVO₄