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Cr3+ 离子掺杂YAG外延层 (Cr3+ ∶YAG)的发光呈宽带谱特征 ,荧光色度坐标为x=0 .6 5 5 1、y =0 .2 949,在CIE1931色度图上相当于主波长λ≈ 6 38nm的红色光 ,并且具有较高的色饱和度 ,其发光谱中引人注目之处还在于荧光主峰的位置均在波长较长的λmax≈ 6 89nm和 70 9nm附近 ,是一种能够实现长波长 (λ≈ 70 0nm)红色光输出的单晶荧光体 ,可用作非晶硅液晶光阀投影仪的高分辨率写入光源。
The Cr3 + ion-doped YAG epitaxial layer (Cr3 +: YAG) has a broad spectrum of luminescence with a fluorescence chromaticity coordinate of x = 0 .6551 and y = 0.2949, corresponding to the dominant wavelength on the CIE1931 chromaticity diagram λ ≈ 6 38nm red light, and has a higher color saturation, its emission spectrum is also the focus of attention is also the main fluorescence peak position at a longer wavelength λmax ≈ 6 89nm and 70 9nm near, is a The single crystal phosphor capable of realizing long wavelength (λ≈70 nm) red light output can be used as a high resolution writing light source of an amorphous silicon liquid crystal shutter projector.