科学家们已经证实的量子剪裁体系多为氟化物，由于它们在VUV下的不稳定性和氟化物的活性，以及氟化物基质在VUV波段的弱吸收、能量转换效率低，所以没有实际应用价值。
Most of the quantum cutting systems hitherto is fluoride, which have no practical value due to their low stability, low absorbability and low energy conversion efficiency under VUV exciting.
自发参量下转换； 相关光子； 量子效率； 符合计数；
Spontaneous Parametric Down-conversion(SPDC); correlated photon; quantum-efficiency; coincidence count;
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