Researchers succeed in writing micro-character with laser

OSAKA, Japan - Photo shows a minute letter 'H' written by a team of Osaka University researchers on a piece of glass 10 micrometers square using a laser. The team, led by Hiroshi Masuhara, professor of applied physics at the university's graduate school of engineering, said four million characters can be written on a 2-square-centimeter postage stamp using their micro-technology. The photo was released Oct. 19 by Prof. Masuhara.