Analysis of the optical spectra of trivalent holmium in yttrium scandium gallium garnet
作者： John B. Gruber , Marian E. Hills , Michael D. Seltzer , Sally B. Stevens , Clyde A. Morrison
DOI: 10.1063/1.352008
关键词: Holmium 、 Multiplet 、 Atomic physics 、 Laser-induced fluorescence 、 Ground state 、 Absorption spectroscopy 、 Nuclear magnetic resonance 、 Stark effect 、 Excited state 、 Ion 、 Chemistry
摘要: The absorption spectrum of Ho3+ ions in yttrium scandium gallium garnet (Ho3+:YSGG) is reported at 4 K between 1.93 and 0.28 μm. Laser excitation spectra laser‐excited fluorescence from Ho3+(4f10)2S+1LJ multiplet manifolds 5F4, 5S2, 5F3 to the ground‐state manifold 5I8 were obtained 4, 8, 70 K. Unresolved emission observed slightly disturbed cation (Y3+) sites along with coming occupying regular having D2 symmetry. Temperature‐dependent transitions (hot bands) 8 establish experimental crystal‐field split (Stark) levels 24 excited seven lowest energy Stark (Z1=0, Z2=6, Z3=17, Z4=29, Z5=87, Z6=95, Z7=102, all cm−1). An algorithm used symmetry labels Γ1, Γ2, Γ3, or Γ4 individual levels. These are compared results a calculation which parameterized Hamiltonian was diagonalized within 50 Ho3+(4f10). Comparison 157 corresponding predicted out total 486 calculated yields root‐mean‐square deviation 5 cm−1.
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