title: Antiresonant-ring Kerr spectroscopy.
abstract: We demonstrate a new scheme for measuring different tensor elements of the optical Kerr effect response. A dual-ring, polarization-dependent Sagnac interferometer is used to create two copropagating probe pulses that arrive at the sample at different times but that reach the detector simultaneously and collinearly. The tensor element of the response that is measured is determined by the polarization of the pump pulse. By controlling the relative timing of the probe pulses it is also possible to perform optical subtraction of two different tensor elements of the response at two different times, a strategy that can be used to enhance or suppress particular contributions to the OKE response.
authors: Qin
authors: Q
authors: Zhong
authors: Xiang
authors: X
authors: Zhu
authors: John T
authors: JT
authors: Fourkas