Tunable and free-form planar optics

Motion Identification of Planar Free-form Objects

It has been shown recently that rigid or affine dynamics of curves defined by algebraic equations can be represented in terms of Riccati dynamics of possibly complex lines. In this work, we develop new Riccati equations in real variables for closed-bounded curves and new recursions on multiplicative scalars in the decomposition of the curve. A parameter identification scheme has also been propo...

Planar-integrated free-space optics with high efficiency

Planar-integrated free-space optical (PIFSO) systems have been in the center of the research at the ONT group for about 10 years. During that time, we could demonstrate the viability of this approach to build optical microsystems for applications in optical interconnection and sensing. An essential step towards practicality is now being taken, namely, the design and fabrication of systems with ...

Achromatic optical fourier transformer with planar-integrated free-space optics.

We address the problem of achromatization of an optical system for the realization of planar-integrated, free-space optics. In particular we demonstrate an integrated optical Fourier transformation module that was achromatized for the visible spectrum by means of a diffractive lens doublet. The optical system design is studied by using the parabolic approximation of the scalar diffraction theor...

1 Tunable Micro - optics

Low-Cost Tunable Adaptive Optics

The tunable acoustic gradient index (TAG) lens is capable of producing rapidly tunable complex optical beams and patterns from a single source beam. The lens uses piezoelectric transducers to modify the density and refractive index within a fluid to generate lensing behavior. The type of beam that the lens generates depends on the electrical driving signal applied to the piezoelectric transduce...