A5012530153- Advanced optical system design
- Adaptive optics and wavefront sensing
- Advanced Optical Imaging Technologies
- Surface Roughness and Optical Measurements
Universidade Federal de São Carlos
2015
This work presents the fabrication of a contiguous f/#=f/15 Fresnel microlens array (MLA) by employing low-cost home-built maskless exposure lithographic system based on digital light projector technology using Texas Instruments' micromirror device chip. A continuous diffractive phase relief structure was generated photoresist-coated silicon wafer, replicated in polydimethylsiloxane (PDMS) and electrostatically bonded to glass substrate. The whole time takes 10.8 min expose 2.4×2.4 mm MLA,...
This work reports the fabrication of Fresnel Zone Plates (FZP) by employing a maskless lithography tool based on direct laser writing. The target application areas in this are to use micro lens array (MLA) wavefront sensor, for optical aberrations quantification human eye diagnostics or adaptive system. last one is essential astronomy applications order correct introduced earth atmosphere. fabricated FZP generates illumination points with high-contrast intensity focal plane, which purpose...