噱头
发表于 2025-4-1 03:57:40
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打击
发表于 2025-4-1 09:11:08
Efficient Narrowband Optical Parametric Oscillators of Beta-Barium-Borate (BBO) and Lithium-Triboraical and experimental investigations.. The OPO is considered as a source of powerful, broadly tunable coherent radiation. The development and the scientific application has been hampered, however, by the scarcity of nonlinear optical materials with suitable optical and mechanical properties.
小官
发表于 2025-4-1 11:30:42
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