As to the upconversion material assured, the single and definitive conversion spectrum can be got when the adapted optical pumping source is selected.
对于确定的上转换材料，当选用恰当的激发光源进行激发时，可得到唯一确定的转换光谱；
As to the upconversion material assured, the single and definitive conversion spectrum can be got when the adapted optical pumping source is selected.
对于确定的上转换材料，当选用恰当的激发光源进行激发时，可得到唯一确定的转换光谱；
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