Publications [#234362] of Warren S. Warren

Journal Articles
  1. Robles, FE; Samineni, P; Wilson, JW; Warren, WS, Pump-probe nonlinear phase dispersion spectroscopy., Optics express, vol. 21 no. 8 (April, 2013), pp. 9353-9364 [Gateway.cgi], [doi] .

    Abstract:
    Pump-probe microscopy is an imaging technique that delivers molecular contrast of pigmented samples. Here, we introduce pump-probe nonlinear phase dispersion spectroscopy (PP-NLDS), a method that leverages pump-probe microscopy and spectral-domain interferometry to ascertain information from dispersive and resonant nonlinear effects. PP-NLDS extends the information content to four dimensions (phase, amplitude, wavelength, and pump-probe time-delay) that yield unique insight into a wider range of nonlinear interactions compared to conventional methods. This results in the ability to provide highly specific molecular contrast of pigmented and non-pigmented samples. A theoretical framework is described, and experimental results and simulations illustrate the potential of this method. Implications for biomedical imaging are discussed.