Beyond intensity modulation: new approaches to pump-probe microscopy
Optics
2021-04-07 v2 Materials Science
Biological Physics
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.
Cite
@article{arxiv.2012.09215,
title = {Beyond intensity modulation: new approaches to pump-probe microscopy},
author = {Jun Jiang and David Grass and Yue Zhou and Warren S. Warren and Martin C. Fischer},
journal= {arXiv preprint arXiv:2012.09215},
year = {2021}
}