Applied Optics

Diffractive optics applied to eyepiece design.

Eyepieces often limit the overall optical performance of visual instruments and, because of the wide field-of-view and high-performance requirements, they present a well-known difficult design problem. Improvement of existing eyepieces is limited with the use of conventional design variables. We have designed and fabricated a hybrid diffractive-refractive wide-field (>60°) eyepiece that offers ...

Ansatz from nonlinear optics applied to trapped Bose-Einstein condensates

A simple analytical ansatz, which has been used to describe the intensity profile of the similariton laser a laser with self-similar propagation of ultrashort pulses , is used as a variational wave function to solve the Gross-Pitaevskii equation for a wide range of interaction parameters. The variational form interpolates between the noninteracting density profile and the strongly interacting T...

Multifocus microscopy with precise color multi-phase diffractive optics applied in functional neuronal imaging.

Multifocus microscopy (MFM) allows high-resolution instantaneous three-dimensional (3D) imaging and has been applied to study biological specimens ranging from single molecules inside cells nuclei to entire embryos. We here describe pattern designs and nanofabrication methods for diffractive optics that optimize the light-efficiency of the central optical component of MFM: the diffractive multi...

Evaluation of an active learning methodology applied to geometric optics by analyzing students reactions

Neste trabalho propomos e investigamos uma proposta didática para o ensino de espelhos esféricos baseada na associação entre uma metodologia de aprendizagem ativa com a estratégia de analogias ponte e conceitos âncora. A atividade era constitúıda por dois experimentos sucessivos sobre as caracteŕısticas de imagens virtuais conjugadas por um espelho esférico côncavo e a dependência de seu tamanh...

ON THE APPLICATION TO DYNAMICS OF A GENERAL MATHEMATICAL METHOD PREVIOUSLY APPLIED TO OPTICS By