operation in chemical beam epitaxy (CBE) were investigated. It was shown that nitrogen
atoms are main plasma species responsible for the CBE growth of GaNAs and related alloy.
By choosing aperture flow conductance, significant improvement in photoluminescence of
GaInNAs/GaAs quantum well at 1.2 μm wavelength region have been demonstrated. The
reduction of ions are found to be effective to improve crystal quality.