Pump-probe experiments on a biased (100) GaAs sample show that a constant electric field enables quantum interference between one and two photon absorption. This effect can be ascribed to the nonlinear optical Franz-Keldysh effect.
© 2011 OSA
S. Cundiff, J. Wahlstrand, H. Zhang, S. Choi, and J. Sipe, "Electric Field Induced Quantum Interference in Semiconductors," in Nonlinear Optics, OSA Technical Digest (CD) (Optical Society of America, 2011), paper NMD2.
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