Junyu Qian, Yujie Peng, Yanyan Li, Wenkai Li, Renyu Feng, Liya Shen, Yuxin Leng. Research progress of mid-infrared ultra-intense and ultrashort laser (Invited)[J]. Infrared and Laser Engineering, 2021, 50(8): 20210456
- Infrared and Laser Engineering
- Vol. 50, Issue 8, 20210456 (2021)
Fig. 1. Schematic diagram of OPA
![(a) The final output mid-infrared spectra. The solid lines are measured experimental results, the dash lines correspond the spectra from the numerical simulation; (b) Experimental results centered at 3.86 μm; (c) Signal energy versus wavelength; (d) Idler energy versus wavelength[31]](/richHtml/irla/2021/50/8/20210456/img_2.jpg)
Fig. 2. (a) The final output mid-infrared spectra. The solid lines are measured experimental results, the dash lines correspond the spectra from the numerical simulation; (b) Experimental results centered at 3.86 μm; (c) Signal energy versus wavelength; (d) Idler energy versus wavelength[31]
Fig. 3. Schematic diagram of OPCPA
Fig. 4. (a) Amplified signal pulse energy of the second-stage OPA as a function of pump energy; (b) The spectrum evolution throughout the OPCPA system[36]
Fig. 5. Schematic of the 100-TW-level mid-infrared laser system[39]
Fig. 6. Schematic of the 4 μm OPCPA system and the HCF-based coherent beam combination system[49]
Fig. 7. Development trend of mid-infrared ultra-intense ultrashort lasers as of 2018
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Table 1. Characteristics of OPA, OPCPA, FOPA, and DC-OPA for generating MIR femtosecond laser[41]
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Table 2. Characteristics comparison of several pulse post-compression techniques
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