Fig. 1. Propagation of light beam in absorbing medium

Fig. 2. Measuring diagram of complex refractive index of absorbing medium

Fig. 3. Real refractive angle φ versus vertex angle α for three kinds of metal samples

Fig. 4. Real refractive angle φ versus vertex angle α for other three kinds of samples

Fig. 5. Real refractive angle φ on one side of air versus real part n and imaginary part κ of complex refractive index