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arXiv · 2012.09215

Beyond intensity modulation: new approaches to pump-probe microscopy

Jun Jiang·David Grass·Yue Zhou·Warren S. Warren·Martin C. Fischer
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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, the relative polarization, or the pulse length. 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.

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Jun Jiang, David Grass, Yue Zhou, Warren S. Warren, Martin C. Fischer. 2020-12-18. Beyond intensity modulation: new approaches to pump-probe microscopy. https://doi.org/10.1364/ol.417905

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