Fig. 1. The s-dDAC assembled with two DACs for compression and decompression: (a) schematic front view; (b) schematic side view; (c) photograph and details of the components.

Fig. 2. Control of the dynamic pressure load of the s-dDAC by the function generator. (a) Schematic of s-dDAC operation and spectral detection. (b)–(e) Periodic waveforms (triangular, trapezoidal, sinusoidal, and customized functions) from the function generator for repeated compression/decompression cycles of the DAC. (f) and (g) Ramp waveforms for different compression and decompression rates.

Fig. 3. (a) Schematic (a) and (b) photograph of the versatile time-resolved fluorescence/Raman/UV-visible absorption spectroscopy and high-speed imaging system.

Fig. 4. The dynamic pressure drive of the s-dDAC is controlled by the function generator. (a) and (b) Output voltages of the three power supplies driven by a square waveform and a ramp waveform, respectively. (c) Compression of the s-dDAC from 5 to 29 GPa within 0.5 ms under a burst signal drive. (d) Compression of the s-dDAC in 20 ms and in100 ms under a ramp waveform drive. (e) and (f) Evolution of sample fluorescence and ruby fluorescence in a single compression process.

Fig. 5. (a) and (b) Selected time-resolved optical images of liquid pyridine with compression times of 1 and 10 s, respectively. (c) and (d) XRD patterns of pyridine at 1.30 GPa with a compression time of 1 s and at 1.28 GPa with a compression time of 10 s, respectively.

Fig. 6. ML process of ZnS:Mn compressed from 1.1 to 7.3 GPa in 1 s. (a) Selected time-resolved images of ZnS:Mn. (b) Relationship between pressure and ML peak position of ZnS:Mn. (c) Relationship between ML intensity, cumulative intensity, and pressure.