Principle for full-spectrum white laser generation. (IMAGE)
Caption
a, Schematic diagram illustrating simultaneous broadband 2nd-10th HHG via cascaded 2nd-NL QPM up-conversion upon a mid-IR pump femtosecond laser in CPPLN. b, Schematic diagram illustrating ultrabroadband 2nd-10th HHG supercontinuum white laser upon a high-peak-power mid-IR pump femtosecond laser via synergic action of 2nd-NL and 3rd-NL. c, The mechanism of full-spectrum laser generation through a cascaded HCF-LN-CPPLN module via synergic 2nd-NL and 3rd-NL. d, Schematic diagram for the structural geometry of the designed CPPLN crystal for HHG. e, Optical microscopic image of the etched sample surface of a typical CPPLN structure. f, Enlarged views of the positive and negative domains of the CPPLN sample. g, Combined plots of the phase-mismatch curve for SHG process in a homogeneous LN crystal and the Fourier coefficient curves for the designed CPPLN sample in 2nd-10th HHG processes, which are divided into six QPM bands.
Credit
by Lihong Hong, Liqiang Liu, Yuanyuan Liu, Junyu Qian, Renyu Feng, Wenkai Li, Yanyan Li, Yujie Peng, Yuxin Leng, Ruxin Li, and Zhi-Yuan Li
Usage Restrictions
Credit must be given to the creator.
License
CC BY