Second-harmonic generation from a positive-negative index material heterostructure.
Resonant cavities have been widely used in the past to enhance material, nonlinear response. Traditional mirrors include metallic films and distributed Bragg reflectors. In this paper we propose negative index material mirrors as a third alternative. With the help of a rigorous Green function approach, we investigate second harmonic generation from single and coupled cavities, and theoretically prove that negative index material mirrors can raise the nonlinear conversion efficiency of a bulk material by at least four orders of magnitude compared to a bulk medium.
Time Domain Corp., Cummings Research Park, 7057 Old Madison Pike, Huntsville, Alabama 35806, USA.
Nadia
N
Mattiucci
Giuseppe
G
D'Aguanno
Mark J
MJ
Bloemer
Michael
M
Scalora