Birefringence via Doppler broadening and prevention of information hacking

Ma Ji-Chao¹, Wei Gao-Feng^{1, †}, Liu Dan-Dan²

(color online) (a) Refractive index vs. Δ_p/γ with the parameters in Fig. 2; (b) refractive index vs. V_D with the same parameters and Δ_p = 0γ.