American Institute of Physics, Applied Physics Letters, 23(88), p. 234102
DOI: 10.1063/1.2210084
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Pressure-induced shift of various luminescence lines of Nd3+-doped yttrium aluminum garnet crystal in the pressure range of 0–120 kbars and temperatures between 10 and 300 K is reported. Spectral positions of all these lines in the region of 900–960 nm shift linearly towards lower energies with the pressure coefficient values from −0.01 to −0.99 cm−1 /kbar in the examined pressure range. Two of these lines have similar pressure coefficients than those of the R lines of Cr3+ in ruby. Therefore, they can be readily used for pressure calibration in diamond anvil cells