We describe a detailed theoretical investigation of two-photon absorption photoconductivity in semiconductor microcavities. We show that high enhancement (by a factor of >10,000) of the nonlinear response can be obtained as a result of the microcavity effect. We discuss in detail the design and performance (dynamic range, speed) of such a device with the help of the example of an AlGaAs/GaAs microcavity operating at 900 nm. This device shows promise for low-intensity, fast autocorrelation and demultiplexing applications.
© 2002 Optical Society of America
H. Folliot, M. Lynch, A. L. Bradley, T. Krug, L. A. Dunbar, J. Hegarty, J. F. Donegan, and L. P. Barry, "Two-photon-induced photoconductivity enhancement in semiconductor microcavities: a theoretical investigation," J. Opt. Soc. Am. B 19, 2396-2402 (2002)