1st International Laser M2P Conference
J. Phys. Colloques 48 (1987) C7-97-C7-100
DOI: 10.1051/jphyscol:1987715
INTERACTION OF 3 µm RADIATION WITH MATTER
J. FRAUCHIGER et W. LÜTHYInstitute of Applied Physics, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland
Abstract
Drilling of small holes into media containing OH or CH bonds with a 2.92 µm YAlO3 : Er laser is studied. In materials containing OH bonds strong absorption allows to heat small volumina with only marginal heat diffusion. Drilling with nearly diffraction limited lateral resolution is achieved.