Optical properties

Infrared refractive index (300 K)
n=3.3+05x+0.09x²

	Refractive index n versus photon energy. 300 K 1. x=0 (GaAs), 2. x=1 (GaSb) (Adachi (1989)).
	Normal incidence reflectivity versus photon energy. 300 K. 1. x=0 (GaAs), 2. x=1 (GaSb) (Aspnes and Studna (1983)).
	Wavenumber dependence of the reflectance for four alloy compositions. 300 K. 1. x=0.07, 2. x=0.09, 3. x=0.89, 4. x=0.93 (Lucovsky and Chen (1970)).
	The absorption coefficient versus photon energy. 300 K. 1. x=0 (GaAs), 2. x=1 (GaSb) (Adachi (1989)).
	Intrinsic absorption coefficient near the intrinsic absorption edge for x=0 (GaAs). (Sturge (1962)).
	Intrinsic absorption coefficient near the intrinsic absorption edge for x=1 (GaSb). T(K): 1. 300, 2. 77, 3. 4.2. (Becker et al. (1961)).
	Absorption edge at different temperatures for x=0.1 (Swarup et al. (1981)).