Abstract: Knowledge of the optical properties of Gallium Antimonide (GaSb) is important
because of the increasing application of GaSb in many optical and electronics
applications. We have investigated the optical properties of Gallium Antimonide
(GaSb) in the photon energy range 1.5-6.01 eV. We obtained refractive index
which has a maximum value of 5.24 at photon energy 2.0 eV, the extinction coefficient
which has a maximum value of 4.13 at photon energy 4.2 eV, the dielectric constant,
the real part of the complex dielectric constant has a maximum value of 25.6
at photon energy 2.0 eV and the imaginary part of the complex dielectric constant
has a maximum value of 25.14 at photon energy 4.0 eV, the transmittance which
has a maximum value of 0.20 at photon energy 3.3 eV, the absorption coefficient
which has a maximum value of 1.76x10^{8} m^{-1} at photon energy
4.2 eV, reflectance which has a maximum value of 0.67 at 4.3 eV, reflection
coefficient which has a maximum value of 0.82 at photon energy 4.3 eV, the real
part of optical conductivity has a maximum value of 1.22x10^{16} at
4.1 eV and the imaginary part of the optical conductivity has a maximum value
of 5.95x10^{15} at 4.3 eV. The values obtained for the optical properties
of GaSb are in good agreement with other results. |