Opt Lett. 2013 Dec 15;38(24):5264-7. doi: 10.1364/OL.38.005264.
We report a new optical arrangement that creates high-efficiency, high-quality Fresnel incoherent correlation holography (FINCH) holograms using polarization sensitive transmission liquid crystal gradient index (TLCGRIN) diffractive lenses. In contrast, current universal practice in the field employs a reflective spatial light modulator (SLM) to separate sample and reference beams. Polarization sensitive TLCGRIN lenses enable a straight optical path, have >90% transmission efficiency, are not pixilated, and are free of many limitations of reflective SLM devices. For each sample point, two spherical beams created by a glass lens in combination with a polarization sensitive TLCGRIN lens interfere and create a hologram and resultant super resolution image.
我们报告了一种新的光学布置,该布置使用偏振敏感透射液晶梯度折射率(TLCGRIN)衍射透镜创建高效、高质量的菲涅尔非相干相关全息术(FINCH)全息图。相比之下,目前该领域的通用做法是使用反射空间光调制器(SLM)来分离样品和参考光束。偏振敏感的 TLCGRIN 透镜能够实现直光路,具有 >90%的传输效率,不会出现像素化,并且没有反射 SLM 设备的许多限制。对于每个样品点,由玻璃透镜与偏振敏感 TLCGRIN 透镜组合产生的两个球面光束会相互干扰,从而创建全息图和结果的超分辨率图像。