Cross-relaxation induced efficient 1.55 μm emission in La1.95Er0.05Ti2O7 towards an application as an amplifier for silica-fibers
Source abstract
Abstract
The La2-xErxTi2O7 samples (with x = 0 and 0.05) were synthesized using the conventional solid-state reaction method. The spectroscopic properties of the La2-xErxTi2O7 sample (x = 0.05) were investigated. The temperature-dependence emission spectra of La1.95Er0.05Ti2O7 display several lines in the visible and infrared regions. Under the excitation of a 488 nm laser, the La1.95Er0.05Ti2O7 exhibits efficient infrared emission at 1.55 μm. The intensity of emission bands arising from the transitions 4S3/2 → 4I15/2, 4I13/2 → 4I15/2 increase with increasing temperature. To explain the efficient emission at 1.55 μm, multiphonon-relaxation and energy transfer mechanism that contains cross-relaxation processes were proposed. Under a pump of 488 nm; La1.95Er0.05Ti2O7 could serve as an amplifier for silica fibers and can be used to fabricate green light-emitting displays.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Solid State Laser Technologies · Electronic and Structural Properties of Oxides
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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