A. V. Aladov, A. L. Zakgeim, A. E. Ivanov, A. E. Chernyakov
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引用次数: 0
摘要
研究了波长为 440、470 和 510 nm 的最强 AlInGaN LED 的能量和光谱特性与两种激光介质泵浦的关系：蓝宝石（Ti:Al2O3）和变石（Cr:Al2BeO4）。实验研究了 LED 辐射在激光介质中的吸收系数与峰值波长、工作模式和激发水平的关系。针对 LED 和有源激光介质的不同组合，计算了相应的光谱匹配值（泵浦辐射的吸收效率）。研究了 LED 发射器在各种激励水平下的能量特性（辐射功率、脉冲能量）。根据输出光功率和效率评估了 LED 发射器的最大能量能力。确定了 LED 和有源激光介质的最佳组合，以实现激光生成。
Possibility of Pumping Lasers on Alexandrite and Ti:Sapphire Leds Emitting in the Range of 440–510 nm
The energy and spectral characteristics of the most powerful AlInGaN LEDs with emission spectrum peaks at wavelengths of 440, 470, and 510 nm were studied in relation to the pumping of two laser media: Ti:Sapphire (Ti:Al2O3) and alexandrite (Cr:Al2BeO4). The absorption coefficients of the LED radiation in the laser media were studied experimentally with respect to the peak wavelength, operating mode, and excitation level. The corresponding spectral matching values (the efficiency of absorption of the pump radiation) were calculated for various combinations of the LEDs and active laser media. The energy characteristics (radiation power, pulse energy) of the LED emitters were studied over a wide range of excitation levels. The maximum energy capabilities of the LED emitters were assessed in terms of both output optical power and efficiency. The optimum combinations of LEDs and active laser media to achieve laser generation were determined.
期刊介绍：
Journal of Applied Spectroscopy reports on many key applications of spectroscopy in chemistry, physics, metallurgy, and biology. An increasing number of papers focus on the theory of lasers, as well as the tremendous potential for the practical applications of lasers in numerous fields and industries.
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