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首页> 外文期刊>Microwave and optical technology letters >THEORETICAL ANALYSIS FOR IMAGE FORMATION FROM A LENS SYSTEM USING SUPERCONTINUUM LIGHT ILLUMINATION
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THEORETICAL ANALYSIS FOR IMAGE FORMATION FROM A LENS SYSTEM USING SUPERCONTINUUM LIGHT ILLUMINATION

机译:超连续光照明透镜系统成像的理论分析

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摘要

Theoretical analysis for image formation of a lens system using a supercontinuum light source is provided. The supercontinuum wave is generated by launching femtosecond laser pulses into a highly nonlinear photonic crystal fiber. The ultra high spatial coherence (determined by the core diameter of the photonic crystal fiber) and low temporal coherence (ultra wide spectral range from UV to near infrared) make it possible to achieve very long depth-of-focus projection without speckle noise. Even though the numerical aperture of the lens is as high as 1, the simulation result indicates that the depth of focus can be very large, in the order of centimeters. An application to 3D sensing using the supercontinuum wave is presented as well.
机译:提供了用于使用超连续谱光源的透镜系统的图像形成的理论分析。超连续谱波是通过将飞秒激光脉冲发射到高度非线性的光子晶体光纤中而产生的。超高的空间相干性(由光子晶体光纤的纤芯直径决定)和低的时间相干性(从UV到近红外的超宽光谱范围)可以实现非常长的聚焦深度投影而没有斑点噪声。即使镜头的数值孔径高达1,模拟结果也表明焦点深度可能非常大,约为厘米。还介绍了使用超连续谱波的3D传感应用。

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