請教各位GGJJ， 8yswi[  
我想用zemax的非序列模式仿真玻璃diffuser的透射及反射場。 uesIkJ^Q[  
我用的是thorlabs ground glass diffuser,技術(shù)參數(shù)如下： b-#oE{(\'  
Material: N-BK7 (Uncoated)Scratch-Dig: 80-50Clear Aperture: >90% DiameterPolished Side Surface Irregularity: <4λGaussian Intensity Profile120, 220, 600, or 1500 grit gd0a,_`M  
請問是否可以使用zemax的內(nèi)建散射模型？如果可以，應(yīng)該使用哪一種？謝謝�。�

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Built-in scattering models 2H1?f|0>  
Lambertian bz`rSp8h  
BSDF = 1/p

• The scattered ray projection vector has equal probability anywhere on the projected plane    
• The scattered intensity varies like cos(q_s)    
• The scattered intensity is independent of the incident angle

$GD Q1&Z  
Gaussian e[QEOx/-h2  
BSDF(x) = A*exp[-|x|²/s²]

• The scattering distribution is symmetric in direction cosine space    
• s determines the width of the Gaussian distribution on the projected plane    
• Maximum value allowed for s is 5 (for s > 5, distribution is nearly Lambertian)

#=ko4?Wr(  
ABg Gg^gK*D  
BSDF(x) = A/[B + |x|^g]

• Widely used to model scattering due to random isotropic surface roughness    
• Input values for A, B, and g are provided in an ASCII file (in the <data>\ABg_Data\ directory)    
• Input value limitations: A >= 0, B >= 1.0E-12 (unless g = 0, then B = 0 is allowed)

樓主， 3[R[`l]v?  
從diffusion power vs. angle 曲線看，朗伯散射模型是不合適的，考慮用高斯和ABg散射模型更現(xiàn)實(shí)。 m-9ChF:U  
如需要具體模型參數(shù)，請告知。 Jb|dpu/e  
祝成功！ 5_rx$avm  
MANG2004 k4JTc2b  

mang2004:樓主，  =tc!"{  
從diffusion power vs. angle 曲線看，朗伯散射模型是不合適的，考慮用高斯和ABg散射模型更現(xiàn)實(shí)。  ^]?juL  
如需要具體模型參數(shù)，請告知。 3