Double Differential Alpha, Proton and Deuteron Emission Cross Section Calculations for the Structural Fusion Materials 46,48Ti

Spectroscopic properties of neodymium-doped yttrium lithium fluoride were measured at different temperatures from 35 K to 350 K in specimens with 1 at% Nd3+ concentration. The absorption spectrum was measured at room temperature from 400 to 900 nm. The decay dynamics of the 4F3/2 multiplet was investigated by measuring the fluorescence lifetime as a function of the sample temperature, and the radiative decay time was derived by extrapolation to 0 K. The stimulated-emission cross-sections of the transitions from the 4F3/2 to the 4I9/2, 4I11/2, and 4I13/2 levels were obtained from the fluorescence spectrum measured at different temperatures, using the Aull–Jenssen technique. The results show consistency with most results previously published at room temperature, extending them over a broader range of temperatures. A semi-empirical formula for the magnitude of the stimulated-emission cross-section as a function of temperature in the 250 K to 350 K temperature range, is presented for the most intense transitions to the 4I11/2 and 4I13/2 levels.

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Emission Cross Section Measurements in the 3/spl mu/m Spectral Range of Er:YLF

EQEC 96 1996 European Quantum Electronic Conference EQEC-96 ◽

10.1109/eqec.1996.561699 ◽

1996 ◽

Author(s):

A. Diening ◽

T. Jensen ◽

G. Hubel

Keyword(s):

Cross Section ◽

Spectral Range ◽

Emission Cross Section

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The effect of Cr concentration on emission cross-section and fluorescence lifetime in Cr,Yb:YAG crystal

Journal of Luminescence ◽

10.1016/s0022-2313(03)00012-7 ◽

2003 ◽

Vol 104 (1-2) ◽

pp. 151-158 ◽

Cited By ~ 18

Author(s):

Jun Dong ◽

Peizhen Deng

Keyword(s):

Cross Section ◽

Fluorescence Lifetime ◽

Emission Cross Section ◽

Cr Concentration

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Evidence for the Photoemission Nature of Gd 4f Resonant Photoemission

MRS Proceedings ◽

10.1557/proc-524-197 ◽

1998 ◽

Vol 524 ◽

Author(s):

S. R. Mishra ◽

T. R. Cummins ◽

W. J. Gammon ◽

G. D. Waddill ◽

G. Van der-Laan ◽

...

Keyword(s):

Angular Distribution ◽

Cross Section ◽

Photon Energy ◽

Photoelectron Spectroscopy ◽

Emission Cross Section ◽

Linear Dichroism ◽

Constructive Interference ◽

Resonant Photoemission ◽

Magnetic Linear Dichroism ◽

Spectroscopy Experiment

ABSTRACTThe constructive interference between direct and indirect channels above the absorption threshold of a core level leads to a massive increase in the emission cross section leading to a phenomenon called “resonant photoemission”. Using novel magnetic linear dichroism in angular distribution photoelectron spectroscopy experiment we have tried to understand the nature of the resonant photoemission process in Gd metal. The presence of dichroism in Gd 4f photoemission intensity at a photon energy corresponding to resonant photoemission clearly demonstrates the photoemission-like nature of the resonant photoemission process.

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Investigation on the Spectroscopic Properties of Yb3+-doped Phosphate Glass

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.335-336.1035 ◽

2011 ◽

Vol 335-336 ◽

pp. 1035-1038

Author(s):

Qi Sang ◽

Shao Jun Wang ◽

Xue Rong Wang ◽

Jing Wen Lu

Keyword(s):

Cross Section ◽

Spectral Properties ◽

Emission Cross Section ◽

Emission Spectra ◽

Spectroscopic Properties ◽

Pump Intensity ◽

Doping Content ◽

Performance Parameters ◽

Particle Count ◽

Laser Glass

A series of the Yb3+ -doped phosphate laser glass have been prepared under high temperature and different doping content and the fluorescence and absorption spectrum is observed, respectively. The influences of the Yb3+ -doped content on the spectral properties of the glass are analyzed and the optimal mole fraction is 4 %. The emission cross-section and fluorescent lifetime is calculated with McCumber theory. Furthermore, the integrated absorption cross-section, the full width at half maximum of the emission spectra and the laser performance parameters such as least particle count, saturation pump intensity and lowest pump intensity of Yb3+ -doped laser glass is calculated.

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