Ruled Diffraction Gratings25x25x6mm 600Lines/mm Float Glass
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Product No. 378527
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- Size 25x25x6mm
- Groove Density 600Lines/mm
- Blaze Wavelength 250nm
- Blaze Angle 4°18'
- Chromatic Dispersion 1.67nm/mrad
- Substrate Material 浮法玻璃
- Surface Quality 60-40
- Dimension Tolerance ±0.5mm
- Thickness Tolerance ±0.5mm
- Efficiency 60%~ 80% @Blaze Wavelength
- Clear Aperture 0.9
- Damage Threshold 350mJ/cm2 @200ns Pulsed Laser, 40W/cm2（CW） Continuous Laser
- Genre 紫外~近红外光栅
制作原始或者母光栅的初始步骤是对基底材料的选择，通常为玻璃或者铜。将基底材料抛光至高平整度并对其镀一层很薄的铝膜。刻划平行度和刻线的等距需要漫长的时间进行调整，可能需要花费几天进行设置并在实际刻划之前进行测试。刻划机必须能够在每次刻划后让钻石刀头按精确路线折回，并按预定量对基底进行刻划。刻线的平行度和位移必须精确控制。
