Fig. 1. Raman spectrum of ReSe2 powder.

Fig. 2. TEM scan image of ReSe2 in solution.

Fig. 3. Saturable absorption characteristic curve of ReSe2 SA.

Fig. 4. Schematic diagram of laser cavity.

Fig. 5. Average output power versus absorbed pump power of the Q-switched laser.

Fig. 6. Pulse width and repetition rate as functions of absorbed pump power.

Fig. 7. Typical pulse profile of the Q-switched laser.

Fig. 8. Spectrum for Q-switching modes.