... Gaussian beam profile, (b) overlapping of Gaussian profile to generate ‘top-hat’, and (c) 'Top-hat' beam profile. Micromachining Techniques for Fabrication of Micro and Nano Structures ... machined at 30 Hz, 50 shots per point and 3.6 mm/min with different fluences of 80 mJ/cm2. Micromachining Techniques for Fabrication of Micro and Nano Structures 116 deployment [Holden, ... reported for PMMA at 193 nm by Chen, Y-T, et al. (2005) Micromachining Techniques for Fabrication of Micro and Nano Structures 118 relatively short, loss due to multimode is acceptable and that...