Visualización de Objetos de Fase Pura Usando una Cavidad Óptica de Autoimagen Degenerada
Ivan F. Santos
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Información básica
Volumen
V58 - N2 / 2025 Ordinario
Referencia
51203
DOI
http://dx.doi.org/10.7149/OPA.58.2.51203
Idioma
English
Etiquetas
Cavity, self-imaging, phase object
Resumen
Theoretical analysis demonstrates that pure-phase objects, when positioned on the flat mirror of a self-imaging cavity, can be imaged outside the cavity as ordinary objects. The theory was developed based on the following assumptions: (i) the object is non-polarizing, (ii) it is binary (with phase values of 0 or 1 rad), (iii) it has a single refractive index, (iv) the mirror is non-absorbing, (v) the mirror is dielectric, and (vi) it reflects isotropically. These images are degraded by a bright background, with the signal-to-background ratio (SBR) improving as mirror reflectivity increases. Computational simulations validate these findings and reveal similar behavior for objects with more complex phase structures, depending on mirror reflectivity. This indicates that the method is effective beyond the binary case, as examined using theoretical methods.
Referencias
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