Loss induced negative refraction and super-prism effect at highly absorptive interface

Wu Jian^{1, 4, †}, Wang Tao¹, Hou Tianyue¹, Kan Xuefen², Yin Cheng^{2, 3, 4}, Zhou Pu^{1, ‡}, Cao Zhuangqi³

Equifrequency diagram for silver, where the parameters are ε ∞ = 5 , ω_p=9.2 eV, and Γ=0.021 eV.[17]