Abstract
Although Nd:YAG was invented in the 1960s in the last century, it has been and still the most commonly crystalmaterial 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. ACrystal Growth System namely Automatic Diameter Control – Crystal Growth System (ADC-CGS) was utilizedto prepare a single crystal of Nd:YAG grown in the direction using the Czochralski. By an effectivecontrol on the growth parameter such as maintaining temperature gradient by controlling the output power andthe growth rate, an Nd:YAG single crystal with the dimensions of 75 mm in length and 30 mm in diameter wassuccessfully produced using the ADC-CGS. The color of the Nd:YAG single crystal is slightly purple whenexposed to the light. This is a unique characteristic of YAG crystal when doped with Neodymium (Nd) followedby a better fluorescence lifetime and thermal conductivity.
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