论文标题
使用空间光调制器基于强度补偿极化孔径的衍射限制成像系统的范围扩展深度
Extended depth of field of diffraction limited imaging system using spatial light modulator based intensity compensated polarization coded aperture
论文作者
论文摘要
降低孔径大小是一种传统的技术，可以在光学方面获得增强的图像分辨率，但由于耗尽的照明而掩盖了它。可以用极化编码的孔（PCA）来绕过这种关键的伪影。我们在实验上证明了强度补偿的极化加密孔，这些孔是使用LC-SLM的极化调制特性设计的。 PCA不受光圈大小的限制，因此可以使用这些PCAS更方便地记录远场点扩展功能（PSF）。我们通过实验验证了使用标称强度损失的PCAS增强了衍射受限透镜的景深（DOF）和二元菲涅耳区板（BFZP）的轴向强度。
Reducing the aperture size is a conventional technique to obtain enhanced image resolution in optics but it is obscured by depleting illumination. Polarization coded apertures (PCAs) can be employed to circumvent this critical artifact. We experimentally demonstrate intensity compensated polarization encrypted apertures, which are designed using the polarization modulation characteristics of LC-SLM. PCAs are not limited by the aperture size and hence far-field point spread function (PSF) can be more conveniently recorded using these PCAs. We experimentally validate that Depth of field (DOF) of a diffraction-limited lens and axial intensity of binary Fresnel zone plate (BFZP) is enhanced using PCAs with nominal intensity loss.
