El-Agmy, Reda M., and Najm M. Al-Hosiny. “Thermal Analysis and CW Laser Operation at 1.998 µm in End Pumped Tm:YAP Lasers”. Photonics Letters of Poland 11, no. 4 (December 31, 2019): 103–105. Accessed April 27, 2024. http://www.photonics.pl/PLP/index.php/letters/article/view/11-33.