INTECIN   20395
INSTITUTO DE TECNOLOGIAS Y CIENCIAS DE LA INGENIERIA "HILARIO FERNANDEZ LONG"
Unidad Ejecutora - UE
artículos
Título:
Novel achromatic single reflection quarter-wave retarder: design and measurement
Autor/es:
FRANCISCO E. VEIRAS; RAFFA G; CARE D; LILIANA I. PEREZ; MARÍA T. GAREA
Revista:
REVIEW OF SCIENTIFIC INSTRUMENTS
Editorial:
AMER INST PHYSICS
Referencias:
Lugar: New York; Año: 2014 vol. 85 p. 1 - 6
ISSN:
0034-6748
Resumen:
In this work, we present an achromatic quarter-wave retarder whose design is based upon the reflection properties of an isotropic-anisotropic interface. In theory, it is possible to obtain a π /2 phase shift by means of a total internal reflection at an isotropic-isotropic interface. However, in order to achieve such a phase shift, it is necessary to use a medium with a particularly high refractive index. We have previously shown that these phase shifts can be achieved by means of a total internal reflection in anisotropic-uniaxial interface, which allows the use of smaller refractive index media. By means of this property, we designed, built, and characterized a novel quarter-wave retarder that makes it possible toobtain circularly polarized light from a linear polarization state. We developed some guidelines that allowed us to obtain a device of competitive performance, low cost, and manageable manufacture.