Parra-Escamilla Geliztle A, Cervantes-L Joel, Flores Jorge L, Serrano-García David I
Electro-Photonics Department, University Center of Exact Sciences and Engineering (CUCEI), University of Guadalajara, Av. Revolución No. 1500, CP. 44430 Guadalajara, Jalisco, Mexico.
Faculty of Engineering, Universidad Panamericana, Álvaro del Portillo 49, Zapopan, Jalisco, 45010, Mexico.
Heliyon. 2023 Jun 7;9(6):e16771. doi: 10.1016/j.heliyon.2023.e16771. eCollection 2023 Jun.
We propose a demodulation algorithm based on the calculus of the complex Fourier coefficients; we used a dual rotating polarizer-analyzer polarimeter to show the feasibility of our proposal. Our demodulation algorithm considers the frequency response obtained by the system, and its possible to calculate the total retardation, fast axis orientation and ellipticity of a sample. Our proposal does not require recovering the full Mueller matrix from getting those parameters. In addition, as the proposal does not use retarders for the measurement, the system presents potential applications for multi-wavelength measurements on phase retardation samples. We show experimental results showing the capabilities of our proposal in characterizing a polarization retardance sample.
我们提出了一种基于复傅里叶系数计算的解调算法；我们使用了双旋转偏振器 - 分析器偏振计来证明我们方案的可行性。我们的解调算法考虑了系统获得的频率响应，并且能够计算样品的总相位延迟、快轴方向和椭圆率。我们的方案不需要从获取这些参数中恢复完整的穆勒矩阵。此外，由于该方案在测量中不使用相位延迟器，该系统在相位延迟样品的多波长测量方面具有潜在应用。我们展示的实验结果表明了我们的方案在表征偏振相位延迟样品方面的能力。
