Nā GaA

ʻO GaAs mana kiʻekiʻe epitaxial wafer substrate gallium arsenide wafer mana laser wavelength 905nm no ka mālama lapaʻau laser
ʻO ka wafer epitaxial laser GaAs 4 ʻīniha 6 ʻīniha VCSEL vertical cavity surface emission laser wavelength 940nm single junction