Influence of temporal averaging in the performance of a rotating retarder imaging Stokes polarimeter
| Autor: | Angel Lizana, Juan Campos, Andrés Márquez, Albert Van Eeckhout |
|---|---|
| Přispěvatelé: | Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal, Universidad de Alicante. Instituto Universitario de Física Aplicada a las Ciencias y las Tecnologías, Holografía y Procesado Óptico |
| Rok vydání: | 2020 |
| Předmět: |
Physics
Photon business.industry Polarimeter 02 engineering and technology Interval (mathematics) Function (mathematics) Polarizer 021001 nanoscience & nanotechnology Retarder Stokes polarimeter 01 natural sciences Noise (electronics) Atomic and Molecular Physics and Optics law.invention 010309 optics Optics law Física Aplicada 0103 physical sciences Temporal averaging Light beam 0210 nano-technology business Rotating retarder fixed polarizer |
| Zdroj: | RUA. Repositorio Institucional de la Universidad de Alicante Universidad de Alicante (UA) |
| ISSN: | 1094-4087 |
| DOI: | 10.1364/oe.385623 |
| Popis: | We study the optimum operating conditions for a rotating retarder fixed polarizer (RRFP) when the measurements are not quasi-instantaneous but time-averaged. We obtain the optimum retardance and retarder orientations as a function of the integrated angle interval. We also study how the increase in the number of time-averaged measurements leads to a better equally weighted variance (EWV) value, and thus, to a better performance of the polarimeter in terms of noise amplification for the case of additive noise. Two different analyzers configurations are studied in this work: uniformly spaced retarder angles and when measurements are taken at optimum angles (non-uniformly spaced angles). We also consider the case of polychromatic illumination. We discuss the best measurement conditions in terms of the signal-to-noise ratio depending on whether there is a fixed or a limited amount of photons per measurement. Ministerio de Economía y Competitividad (Fondos Feder, RTI2018-097107-B-C31); Agència de Gestió d’Ajuts Universitaris i de Recerca (SGR 2017-00150). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|