کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11003649 | 1461590 | 2019 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Study on the performance improvement of high power gas terahertz laser by optimizing L-shaped cavity
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موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A high power gas terahertz laser based on L-shaped cavity was demonstrated. We, for the first time, investigated the output performances of D2O gas 385â¯Î¼m THz laser by optimizing the output coupler transmittance of the L-shaped cavity both in theory and experiment. Under the pump energy of 1.6â¯J, the optimum output coupler transmittance was about 0.78 and the optimum gas pressure was about 500â¯Pa. Up to 8.4â¯mJ pulse energy at 385â¯Î¼m was achieved at output coupler transmittance of 0.8, corresponding to a photon conversion efficiency of 43.7%. Pulse width of 120â¯ns, and beam quality factor M2 of 1.58 were obtained at the highest output energy. In addition, the experimental results are in agreement with the theoretical simulation results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics & Laser Technology - Volume 109, January 2019, Pages 361-365
Journal: Optics & Laser Technology - Volume 109, January 2019, Pages 361-365
نویسندگان
Lijie Geng, Zhifeng Zhang, Ruiliang Zhang, Yusheng Zhai, Yuan Luo, Yuling Su,