Beyond intensity modulation: new approaches to pump-probe microscopy.

Journal Article (Journal Article)

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.

Full Text

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Duke Authors

Cited Authors

Jiang, J; Grass, D; Zhou, Y; Warren, WS; Fischer, MC

Published Date

March 2021

Published In

Optics Letters

Volume / Issue

46 / 6

Start / End Page

1474 - 1477

PubMed ID

33720215

Electronic International Standard Serial Number (EISSN)

1539-4794

International Standard Serial Number (ISSN)

0146-9592

Digital Object Identifier (DOI)

10.1364/ol.417905

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