Details

Autor(en) / Beteiligte

• Mulato, M.
• Toet, D.
• Aichmayr, G.
• Santos, P. V.
• Chambouleyron, I.

Titel

Laser crystallization and structuring of amorphous germanium

Ist Teil von

• Applied physics letters, 1997-06, Vol.70 (26), p.3570-3572

Erscheinungsjahr

1997

Quelle

American Institute of Physics

Beschreibungen/Notizen

• The short-pulse laser crystallization and interference structuring of amorphous germanium films were investigated by time resolved reflection measurements and Raman spectroscopy. We demonstrate that submicrometer crystalline structures with very sharp lateral interfaces can be produced by laser interference crystallization of nonhydrogenated samples. In hydrogenated films, on the other hand, the film surface disrupts upon laser exposure leading to the formation of a free-standing crystalline membrane. The Raman spectra of laser crystallized germanium display effects of finite crystallite size and stress.