Rapid chemically selective 3D imaging in the mid-infrared with a Si-based camera
Abstract
The emerging technique of mid-infrared optical coherence tomography (MIR-OCT) takes advantage of the reduced scattering of MIR light in various materials and devices, enabling tomographic imaging at deeper penetration depths. Because of challenges in MIR detection technology, the image acquisition time is however significantly longer than for tomographic imaging methods in the visible/near-infrared. Here we demonstrate an alternative approach to MIR tomography with high-speed imaging capabilities. Through femtosecond non-degenerate two-photon absorption of MIR light in a conventional Si-based CCD camera, we achieve wide-field, high-definition tomographic imaging with chemical selectivity of structured materials and biological samples in mere seconds.
Cite
@article{arxiv.2103.01159,
title = {Rapid chemically selective 3D imaging in the mid-infrared with a Si-based camera},
author = {Eric O. Potma and David Knez and Yong Chen and Amanda Durkin and Alexander Fast and Mihaela Balu and Brenna Norton-Baker and Tommaso Baldacchini and Rachel Martin and Dmitry A. Fishman},
journal= {arXiv preprint arXiv:2103.01159},
year = {2021}
}
Comments
18 pages, 6 figures