Tunable terahertz wave generation in GaSe crystals

摘要

We have generated a narrow line-width T-ray continuously tunable in the range of 0.5-4 THz by the different frequencygeneration in a GaSe crystal with a collinear phase-matched configuration. The peak power at 3.07 THz reaches 17.3 W,and the measured line width is less than 0.3cm~(-1).