Publications [#355664] of Warren S. Warren

Journal Articles

1. Jiang, J; Grass, D; Zhou, Y; Warren, WS; Fischer, MC, Beyond intensity modulation: new approaches to pump-probe microscopy., Optics letters, vol. 46 no. 6 (March, 2021), pp. 1474-1477 [doi]
   (last updated on 2026/01/14)

   Abstract:
   Pump-probe microscopy is an emerging nonlinear imaging technique based on high repetition rate lasers and fast intensity modulation. Here, we present new methods for pump-probe microscopy that keep the beam intensity constant and instead modulate the inter-pulse time delay or the relative polarization. These techniques can improve image quality for samples that have poor heat dissipation or long-lived radiative states and can selectively address nonlinear interactions in the sample. We experimentally demonstrate this approach and point out the advantages over conventional intensity modulation.