The intrinsic bistable terahertz response of intersubband plasmons in wide n -type δ -doped quantum wells is predicted to be enhanced by a resonant Fabry–Perot cavity. With a simple low- Q resonator, the threshold for bistability is decreased by a factor of 2–3 compared with that for bare multiple quantum wells.
© 2004 Optical Society of America
Adriano A. Batista and D. S. Citrin, "Enhanced terahertz bistability in a nonlinear Fabry-Perot resonator with n-type quantum wells," Opt. Lett. 29, 367-369 (2004)