Dynamic spatial pulse shaping via a digital micromirror device for patterned laser-induced forward transfer of solid polymer films

We present laser-induced forward transfer of solid-phase polymer films, shaped using a Digital Micromirror Device (DMD) as a variable illumination mask. Femtosecond laser pulses with a fluence of 200-380 mJ/cm(2) at a wavelength of 800 nm from a Ti: sapphire amplifier were used to reproducibly transfer thin films of poly(methyl methacrylate) as small as similar to 30 mu m by similar to 30 mu m with thickness similar to 1.3 mu m. This first demonstration of DMD-based solid-phase LIFT shows minimum feature sizes of similar to 10 mu m. (C) 2015 Optical Society of America