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PM

　　PbMoO_4(PM) belongs to tetragonal system, 4/m point group. Under the laser wavelength 6328nm, the refractive index is  n_0=2.2386 n_c=2.2362.  transparent ranges is 0.42-6.5μm.

　　PM is good Acousto-optic dielectric material and can be used as acousto-optic modulation device and acousto-optic deflector.