Semi-conductors based on arsenide and antimony, mixed v group four and five element alloys; semiconductors, including superlattice structures, and high electron mobility transistors structures; infrared wave semiconductor lasers for non-medical purposes; long-wave infrared spectral band lasers with a radial waveguide GaSb based on gallium and antimony for industrial use; surface-emitting lasers not for medical use; infrared lasers not for medical use; thermo-photovoltaic cells; quantum wells ...