arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2405.15519physics.opticseess.IV
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共聚焦结构光照明显微镜

Confocal structured illumination microscopy

Weishuai Zhou, Manhong Yao, Xi Lin, Quan Yu, Junzheng Peng, Jingang Zhong

AI总结:

本文提出共聚焦结构光照明显微镜(CSIM),将共聚焦成像概念引入光学切片结构光照明显微镜,利用双摄影原理分离共轭与非共轭信号,以提升成像信噪比和深度。

摘要:

共聚焦显微镜是光学成像领域的一项关键进展,因其出色的抗噪声能力而被广泛应用。然而,其成像效率较低,且可能引起光毒性。光学切片结构光照明显微镜(OS-SIM)能够克服共聚焦显微镜的局限性,但在成像深度和信噪比(SNR)方面仍面临挑战。我们将共聚焦成像的概念引入OS-SIM,并提出了共聚焦结构光照明显微镜(CSIM),以增强OS-SIM的成像性能。CSIM利用双摄影原理,从相机的每个像素重建一幅双图像。重建的双图像等效于使用空间光调制器(SLM)作为虚拟相机所获得的图像,从而能够分离相机像素记录到的共轭和非共轭信号。当建立相机与SLM之间的共轭关系时,我们可以通过从每个双图像中提取共轭信号来抑制非共轭信号,从而重建共聚焦图像。我们构建了CSIM的理论框架。光学切片实验结果表明,与现有的OS-SIM相比,CSIM能够重建具有更优信噪比和更大成像深度的图像。CSIM有望扩展OS-SIM的应用范围。

英文摘要:

Confocal microscopy, a critical advancement in optical imaging, is widely applied because of its excellent anti-noise ability. However, it has low imaging efficiency and can cause phototoxicity. Optical-sectioning structured illumination microscopy (OS-SIM) can overcome the limitations of confocal microscopy but still face challenges in imaging depth and signal-to-noise ratio (SNR). We introduce the concept of confocal imaging into OS-SIM and propose confocal structured illumination microscopy (CSIM) to enhance the imaging performance of OS-SIM. CSIM exploits the principle of dual photography to reconstruct a dual image from each pixel of the camera. The reconstructed dual image is equivalent to the image obtained by using the spatial light modulator (SLM) as a virtual camera, enabling the separation of the conjugate and non-conjugate signals recorded by the camera pixel. We can reject the non-conjugate signals by extracting the conjugate signal from each dual image to reconstruct a confocal image when establishing the conjugate relationship between the camera and the SLM. We have constructed the theoretical framework of CSIM. Optical-sectioning experimental results demonstrate that CSIM can reconstruct images with superior SNR and greater imaging depth compared with existing OS-SIM. CSIM is expected to expand the application scope of OS-SIM.

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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