OBSERVATION OF 2 TYPES OF SPECTRAL HOLES IN MGO-DOPED Y2O3-PR3+ CRYSTALS
Citation
T. Okuno et al., OBSERVATION OF 2 TYPES OF SPECTRAL HOLES IN MGO-DOPED Y2O3-PR3+ CRYSTALS, Optics communications, 123(4-6), 1996, pp. 512-516
Categorie Soggetti
Optics
SICI code
0030-4018(1996)123:4-6<512:OO2TOS>2.0.ZU;2-Y
Abstract
In addition to a narrow spectral hole due to optical pumping to hyperf
ine sublevels in the ground state, an anomalously broad persistent spe
ctral hole was burned in Y2O3:Pr3+ crystals which contain a small amou
nt of MgO. This broad hole was stable against 300 K-annealing. Burning
of this broad hole is ascribed to the rearrangement of local structur
e around optical centers.