Langasite Family Midinfrared Nonlinear Optical Oxide Materials: Structure, Property, and Applications

Figure 11

(a) Type I SHG tuning curve of LGT. is plotted as a function of the phase-matching angle . The insert picture shows the 4.70 mm diameter LGT sphere stuck on a goniometric head. (b) Type I SFG tuning curve of LGT. and are plotted as a function of the phase-matching angle . (c) Type II DFG tuning curve of LGT. and are plotted as a function of the phase-matching angle . Reprinted with permission from [22]. Copyright 2014 Optical Society of America.

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