| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Temperature and Input Energy Dependence of the 946-nm Stimulated Emission Cross Section of Nd3+:YAG Pumped by a Flashlamp |
| Seyed Ebrahim Pourmand, Noriah Bidin**, Hazri Bakhtiar |
Laser Research Group, Nanotechnology Research Alliance, Advance Photonic Science Institute, Faculty of Science, University Teknologi, Malaysia
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| Cite this article: |
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Seyed Ebrahim Pourmand, Noriah Bidin, Hazri Bakhtiar 2012 Chin. Phys. Lett. 29 034206 |
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Abstract The thermal effect on the laser transition at 946 nm is investigated. The temperature of the cooling system is verified in the range 2-60°C. A Nd:YAG laser crystal is utilized as a gain medium and is pumped by a newly developed flashlamp. The variable pumping energy is accomplished within the 5-40 J range. The stimulated emission cross section of the 946-nm line is estimated based on the fluorescence spectrum of the Nd:YAG laser. The stimulated emission cross section of the 946-nm line is found to be inversely proportional to the temperature and to the input energy due to the increase of the thermal population at the ground level.
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| Keywords:
42.62.Fi
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Received: 08 December 2011
Published: 11 March 2012
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