Comment on "Judd–Ofelt analysis of the Er3+ (4f11) absorption intensities in Er3+-doped garnets" [J. Appl. Phys. 93(5), 2602 (2003)].

A previous paper [D. K. Sardar et al., J. Appl. Phys. 93(5), 2602 (2003)] has reported Judd–Ofelt (J–O) spectroscopic properties of Er³⁺ in garnets Y₃Al₅O₁₂, Y₃(Sc₂Ga₃)O₁₂, and Gd₃Ga₅O₁₂. In that paper, the possible magnetic-dipole contribution to the oscillator strength, which is non-zero for the ⁴I_13/2 ↔ ⁴I_15/2 (1.5 μm) transition of Er³⁺, has been erroneously omitted in their J–O calculation, resulting in incorrect results of relevant spectroscopic parameters. In this Comment, we point out the error, perform correct J–O analysis, and report correct results. [ABSTRACT FROM AUTHOR]