Microoptics components

Diffractive optics components for use in free-space and bulk microoptics systems are being studied for optical communications, information processing, optical computing and sensor applications. The subject components include high-efficiency blazed micro Fresnel lenses, high-efficiency chirped gratings, Bragg gratings, binary gratings, and array and composites of them. The research work covers from modeling and analysis using diffraction theory, development of fabrication apparatuses based on electron-beam and laser-beam writing techniques, design, fabrication and characterization of specific components, to pursuing new applications.

Fig.1 Doubly-grooved binary grating for asymmetric beam deflection in planar bulk optics fabricated by EB writing.

Fig.2 Micro Fresnel lens array for differential laser Doppler velocimeter fabricated by LB writing.