Lloret Tomás, Morales-Vidal Marta, Navarro-Fuster Víctor, G Ramírez Manuel, Beléndez Augusto, Pascual Inmaculada
Departamento de Óptica, Farmacología y Anatomía, Universidad de Alicante, Carretera San Vicente del Raspeig s/n, 03690 San Vicente del Raspeig, Spain.
Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías, Universidad de Alicante, Carretera San Vicente del Raspeig s/n, 03690 San Vicente del Raspeig, Spain.
Polymers (Basel). 2022 Dec 11;14(24):5426. doi: 10.3390/polym14245426.
The similarity between object and image of negative asymmetrical holographic lenses (HLs) stored in a low-toxicity photopolymer has been evaluated theoretically and experimentally. Asymmetrical experimental setups with negative focal lengths have been used to obtain HLs. For this purpose, the resolution of the HLs was calculated using the convolution theorem. A USAF 1951 test was used as an object and the impulse responses of the HLs, which in this case was the amplitude spread function (ASF), were obtained with two different methods: using a CCD sensor and a Hartmann Shack (HS) wavefront sensor. For a negative asymmetrically recorded HL a maximum resolution of 11.31 lp/mm was obtained. It was evaluated at 473 nm wavelength. A theoretical study of object-image similarity had carried out using the MSE (mean squared error) metric to evaluate the experimental results obtained quantitatively.
已从理论和实验两方面评估了存储在低毒性光聚合物中的负不对称全息透镜（HL）的物体与图像之间的相似性。已使用具有负焦距的不对称实验装置来获得HL。为此，利用卷积定理计算了HL的分辨率。将美国空军1951测试图案用作物体，并通过两种不同方法获得HL的脉冲响应，在这种情况下即振幅扩展函数（ASF）：使用电荷耦合器件（CCD）传感器和哈特曼-夏克（HS）波前传感器。对于负不对称记录的HL，在473nm波长下获得的最大分辨率为11.31线对/毫米。已使用均方误差（MSE）度量对物体-图像相似性进行了理论研究，以定量评估所获得的实验结果。
