Ballistic laser-assisted solid transfer (BLAST) from a thin film precursor.
A novel technique for the laser-induced forward transfer (LIFT) of material in solid phase from a thin film precursor is presented. Multiple, sub-threshold energy femtosecond pulses are used to lessen the adhesion of a donor film to a support substrate to facilitate forward transfer of solid 'pellets' of donor material to a receiver. A relatively higher intensity outer ring is added to the transfer laser pulses, by means of the near-field diffraction pattern of a circular aperture, to define the area for transfer in the donor film and allow for more reproducible pellet shapes. This technique has been termed Ballistic Laser-Assisted Solid Transfer (BLAST).
Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ,UK. dpb@orc.soton.ac.uk
David P
DP
Banks
Christos
C
Grivas
Ioanna
I
Zergioti
Robert W
RW
Eason
D007834:Lasers; D008567:Membranes, Artificial; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D011829:Radiation Dosage; D013499:Surface Properties / Q000528:radiation effects
D008567:Membranes, Artificial