Research Article
Effective Generation of Milliwatt-Level Sub-Terahertz Wave for Nonlinear Response Measurement of Two-Dimensional Material by Optical Heterodyne Technique
Figure 8
Optical spectrum (a) after OC, (b) after DFB1, and (c) after DFB2, as shown in Figure 7.
(a) |
(b) |
(c) |