arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.01159physics.opticsphysics.ins-det
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利用硅基相机在中红外区域进行快速化学选择性3D成像

Rapid chemically selective 3D imaging in the mid-infrared with a Si-based camera

Eric O. Potma, David Knez, Yong Chen, Amanda Durkin, Alexander Fast, Mihaela Balu, Brenna Norton-Baker, Tommaso Baldacchini, Rachel Martin, Dmitry A. Fishman

摘要:

新兴的中红外光学相干断层扫描(MIR-OCT)技术利用了MIR光在各种材料和设备中的散射减少,从而能够在更深的穿透深度进行断层扫描成像。然而,由于MIR检测技术的挑战,图像采集时间明显长于可见/近红外中的断层成像方法。在这里,我们展示了一种替代方法,MIR断层扫描与高速成像能力。通过飞秒非简并双光子吸收的MIR光在传统的Si基CCD相机,我们实现了宽视场,高清晰度的断层成像与化学选择性的结构材料和生物样品在短短几秒钟内。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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