Fluorescence quantum efficiency dependent on the concentration of Nd3+ doped phosphate glass

Thermal-Lens (TL) for fluorescence quantum efficiency (η) characterizations in a new phosphate glass matrix doped with Nd3+ were performed. η studies were accomplish in function of Nd3+ concentrations (0.5-3 x 1020 ions/cm3). In addition, fluorescence quenching was studied by measuring the concentration dependence of the fluorescence lifetime. The results obtained by TL and fluorescence lifetime techniques are in good agreement, and corroborate with the theory for an energy transfer process involving a pair of ions, in which the main process occurring is cross-relaxation (CR).

[1]  Antonio Manoel Mansanares,et al.  Open photoacoustic cell spectroscopy , 1991 .

[2]  Jun Shen,et al.  A model for cw laser induced mode-mismatched dual-beam thermal lens spectrometry , 1992 .

[3]  M. Baesso,et al.  Thermal lens determination of the temperature coefficient of optical path length in optical materials , 2003 .

[4]  Tomaz Catunda,et al.  Thermal-lens measurements of fluorescence quantum efficiency in Nd+3-doped fluoride glasses , 1999, Other Conferences.

[5]  D. N. Messias,et al.  Thermal lens and Z-scan measurements: Thermal and optical properties of laser glasses – A review , 2006 .

[6]  Photoacoustic determination of the luminescent quantum efficiency of yb(3+) ions in lithium niobate. , 1998, Applied optics.

[7]  M. Poulain,et al.  Preparation and optical properties of neodymium fluorozirconate glasses , 1978 .

[8]  Ralph R. Jacobs,et al.  Dependence of the 4 F 3/2 → 4 I 11/2 induced-emission cross section for Nd 3+ on glass composition , 1976 .

[9]  Jun Shen,et al.  Mode‐mismatched thermal lens determination of temperature coefficient of optical path length in soda lime glass at different wavelengths , 1994 .

[10]  M. Baesso,et al.  Absolute thermal lens method to determine fluorescence quantum efficiency and concentration quenching of solids , 1998 .

[11]  M. Baesso,et al.  Fluorescence quantum efficiency measurements using the thermal lens technique , 2003 .

[12]  S. Stokowski,et al.  Optical and lasing properties of fluorophosphate glass , 1980 .

[13]  S. Buddhudu,et al.  Optical properties of rare-earth-doped HMF glasses , 1992 .

[14]  M. Baesso,et al.  Time-resolved thermal lens measurement of thermal diffusivity of soda—lime glass , 1992 .

[15]  Experimental determination of the luminescent quantum efficiency of the laser emitting level of Nd3+ ions in lithium niobate , 1998 .

[16]  Allen Gersho,et al.  Theory of the photoacoustic effect with solids , 1975 .