Under excitation at 980 nm, Er3+ and Yb3+ co-doped into a single crystal may emit light from ultraviolet to NIR-II, fulfilling the application requirements for solid-state lasers covering a wide… Click to show full abstract
Under excitation at 980 nm, Er3+ and Yb3+ co-doped into a single crystal may emit light from ultraviolet to NIR-II, fulfilling the application requirements for solid-state lasers covering a wide wavelength range.
               
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