Crystal Growth,Spectroscopic Properties and Energy Levels of Cr³⁺:Li₂Mg₂（MoO₄）₃

【摘要】 This paper reported the crystal growth and spectroscopy characters of Cr3+:Li2Mg2(MoO4)3.The refractive index of Cr3+:Li2Mg2(MoO4)3 crystal is 1.87 and the hardness is 270 HV.This crystal shows broadband absorption property with peak wavelength at about 495 and 699 nm.The absorption crosssection is 14.75 × 10-20 cm2 at 495 nm and 9.63 × 10-20 cm2 at 699 nm,respectively.The crystal field strength and energy levels of Cr3+ ion were calculated based on the spectroscopic data.The Cr3+:Li2Mg2(MoO4)3 crystal shows broadband emission extending from750 to 1300 nm even excited at 10 K.The room temperature emission cross section is 72×10-20 cm2 at 926 nm.A discussion of the relation between the spectroscopic properties and crystal field parameters of Cr3+:Li2Mg2(MoO4)3 crystal was presented based on the solid state spectroscopy theory.更多还原

【Abstract】 This paper reported the crystal growth and spectroscopy characters of Cr3+:Li2Mg2(MoO4)3.The refractive index of Cr3+:Li2Mg2(MoO4)3 crystal is 1.87 and the hardness is 270 HV.This crystal shows broadband absorption property with peak wavelength at about 495 and 699 nm.The absorption crosssection is 14.75 × 10-20 cm2 at 495 nm and 9.63 × 10-20 cm2 at 699 nm,respectively.The crystal field strength and energy levels of Cr3+ ion were calculated based on the spectroscopic data.The Cr3+:Li2Mg2(MoO4)3 crystal shows broadband emission extending from750 to 1300 nm even excited at 10 K.The room temperature emission cross section is 72×10-20 cm2 at 926 nm.A discussion of the relation between the spectroscopic properties and crystal field parameters of Cr3+:Li2Mg2(MoO4)3 crystal was presented based on the solid state spectroscopy theory.更多还原