论文标题
通过使用光纤维放大干涉图
Optical image amplification in dual-comb microscopy by use of optical-fiber-amplified interferogram
论文作者
论文摘要
基于双弯曲光谱法（DC）与二维光谱编码（2D-SE）的组合是双弯曲显微镜（DCM），是一种有前途的无扫描共聚焦激光显微镜的方法，可提供与共聚焦的幅度和相位图像对比。但是，由于签名与噪声比率降低，2D-SE光学系统中的信号损失增加了图像采集率。在本文中，我们用掺杂的纤维放大器（EDFA）证明了DCM中的光学图像扩增。图像编码的DCS干涉图和EDFA的结合使用不仅受益于幅度和相位图像的批量扩增，还可以显着拒绝放大的自发发射（ASE）背景。单发定量纳米级地形图和在水对流下的聚苯乙烯珠动力学的实时电影中突出显示了光学图像放大DCM的有效性。提出的方法将是对表面形貌和快速动态现象实时观察的强大工具。
Dual-comb microscopy (DCM), based on a combination of dual-comb spectroscopy (DCS) with two-dimensional spectral encoding (2D-SE), is a promising method for scan-less confocal laser microscopy giving an amplitude and phase image contrast with the confocality. However, signal loss in a 2D-SE optical system hampers increase in image acquisition rate due to decreased signa-to-noise ratio. In this article, we demonstrated optical image amplification in DCM with an erbium-doped fiber amplifier (EDFA). Combined use of image-encoded DCS interferogram and EDFA benefits from not only the batch amplification of amplitude and phase images but also significant rejection of amplified spontaneous emission (ASE) background. Effectiveness of the optical-image-amplified DCM is highlighted in the single-shot quantitative nanometer-order surface topography and the real-time movie of polystyrene beads dynamics under water convection. The proposed method will be a powerful tool for real-time observation of surface topography and fast dynamic phenomena.
