摘要
Although Nd:YAG was invented in the 1960s in the last century, it has been and still the most commonly crystal material widely used in all types of solid-state lasers systems such as frequency-doubled continuous wave, high-energy Q-switched, and so forth in applications to the medical, industrial, military and scientific research. A Crystal Growth System namely Automatic Diameter Control 每 Crystal Growth System (ADC-CGS) was utilized to prepare a single crystal of Nd:YAG grown in the direction using the Czochralski. By an effective control on the growth parameter such as maintaining temperature gradient by controlling the output power and the growth rate, an Nd:YAG single crystal with the dimensions of 75 mm in length and 30 mm in diameter was successfully produced using the ADC-CGS. The color of the Nd:YAG single crystal is slightly purple when exposed to the light. This is a unique characteristic of YAG crystal when doped with Neodymium (Nd) followed by a better fluorescence lifetime and thermal conductivity.