6533b85efe1ef96bd12bfae7
RESEARCH PRODUCT
Full field automated evaluation of the quarter wave plate retardation by phase stepping technique
L. D’acquistoGiovanni PetrucciBernardo Zuccarellosubject
PhotoelasticityMaterials scienceBirefringencebusiness.industryFresnel rhombMechanical EngineeringPhase (waves)Physics::OpticsWaveplateRayAtomic and Molecular Physics and OpticsElectronic Optical and Magnetic MaterialsWavelengthOpticsElectrical and Electronic EngineeringbusinessCircular polarizationdescription
Quarter wave plates are optical elements commonly used in photoelasticity to obtain circularly polarized light. They divide the incident light field into two linearly polarized orthogonal components with a phase difference of a quarter of the light wavelength. Due to the tolerance in manufacturing, however, the actual phase shifting produced by the plates is affected by an error, which noticeably influences the photoelastic measurements performed by means of various automated methods. This paper presents a technique, based on the phase stepping method, for the full field automatic evaluation of the quarter wave plate error.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2002-04-01 | Optics and Lasers in Engineering |