Versatile Full-Field Optical Coherence Tomography with Adjustable Transmission-to-Reflection Ratio and Enhanced Signal-to-Noise Ratio
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866910652720742400 |
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| author | Fan, Youlong Hu, Qingye Wang, Zhongping Zhang, Zengming Wei, Xiantao |
| author_facet | Fan, Youlong Hu, Qingye Wang, Zhongping Zhang, Zengming Wei, Xiantao |
| contents | Traditional full-field optical coherence tomography (FF-OCT) is effective for rapid cross-sectional imaging but often suffers from incoherent signals due to imbalanced light intensities between the sample and reference arms. While the high-throughput dark-field (HTDF) FF-OCT technique employs an asymmetric beamsplitter (BS) to achieve an asymmetric beam-splitting ratio and optimize the utilization of available light, the fixed beam-splitting ratio in the optical system limits HTDF FF-OCT to effectively measuring only specific types of samples with certain scattering intensities. To address this limitation, we propose a more versatile FF-OCT system with an adjustable transmission-to-reflection ratio. This system enables accurate measurement across a broader range of samples by optimizing the light source and finely tuning the polarization to achieve the ideal ratio for different materials. We also observed that both signal-to-noise ratio (SNR) and imaging depth are influenced by the beam-splitting ratio. By precisely adjusting the beam-splitting ratio, both SNR and imaging depth can be optimized to achieve their optimal values. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2410_12449 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Versatile Full-Field Optical Coherence Tomography with Adjustable Transmission-to-Reflection Ratio and Enhanced Signal-to-Noise Ratio Fan, Youlong Hu, Qingye Wang, Zhongping Zhang, Zengming Wei, Xiantao Optics Traditional full-field optical coherence tomography (FF-OCT) is effective for rapid cross-sectional imaging but often suffers from incoherent signals due to imbalanced light intensities between the sample and reference arms. While the high-throughput dark-field (HTDF) FF-OCT technique employs an asymmetric beamsplitter (BS) to achieve an asymmetric beam-splitting ratio and optimize the utilization of available light, the fixed beam-splitting ratio in the optical system limits HTDF FF-OCT to effectively measuring only specific types of samples with certain scattering intensities. To address this limitation, we propose a more versatile FF-OCT system with an adjustable transmission-to-reflection ratio. This system enables accurate measurement across a broader range of samples by optimizing the light source and finely tuning the polarization to achieve the ideal ratio for different materials. We also observed that both signal-to-noise ratio (SNR) and imaging depth are influenced by the beam-splitting ratio. By precisely adjusting the beam-splitting ratio, both SNR and imaging depth can be optimized to achieve their optimal values. |
| title | Versatile Full-Field Optical Coherence Tomography with Adjustable Transmission-to-Reflection Ratio and Enhanced Signal-to-Noise Ratio |
| topic | Optics |
| url | https://arxiv.org/abs/2410.12449 |