ISSN:
1432-0649
Keywords:
42.70
;
81.40
;
61.80
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We report on persistent spectral hole-burning and fluorescence-excitation spectroscopy in heavy-dose (3 × 1020 n/cm2) neutron-irradiated and annealed sapphire using a Ti:Sapphire ring laser in single-frequency and broad-band operation. The optimum conditions for hole burning were obtained after annealing the crystals to 400 °C. Holes have been detected in the near-infrared spectral range between 745 and 795 nm. At 1.5 K, the narrowest hole widths were approximately 2 GHz, so that about 104 holes can be burnt in this spectral region. Besides the storage density in the wavelength dimension, the coefficient describing the electric-field-induced filling of a spectral hole also rises by more than one order of magnitude as compared to crystals with low neutron-irradiation dose.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01080928
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