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国外试制成功一种在较宽频率范围内可调谐的凝聚光源.它是一个应用面积约0.5平方厘米的非线性锂金属铌酸盐晶体作为凝聚光源的参量振荡器.变化晶体的温度,可使输出光的波长在9700～11500埃之间变动.泵源是一个脉冲式掺钕的钨酸钙激光器
Successful trial abroad a coherent tunable light source over a wide range of frequencies.It is a non-linear lithium metal niobate crystal with an area of about 0.5 cm 2 as a parametric oscillator for the condensed light source.Changing the temperature of the crystal allows The wavelength of the output light varies between 9700 and 11500 A. The pump source is a pulsed neodymium-doped calcium tungstate laser