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从磁光读出和热磁写入两者结合的角度提出一个新的优化目标函数．并用其完成了Ｂｉ代ＤｙＧａＩＧ／金属反射层／玻璃多层结构磁光盘的优化设计。结果表明新优化目标函数更具实际意义。
A new optimization objective function is proposed based on the combination of magneto-optical readout and thermal magnetic writing. And use it to complete the optimal design of Bi DyGaIG / metal reflective layer / glass multilayer structure of the magneto-optical disk. The results show that the new optimization objective function is more practical.