Abstract
We reported the application of longitudinal spatial coherence (LSC) properties of a pseudo thermal light source for the topography and tomography of multilayered objects. To synthesize the pseudo thermal light source, He–Ne laser (632.8 nm) is passed through a rotating diffuser and multi-multimode fiber bundle. We demonstrated the topography of gauge block with height difference of 20 µm and the tomography of RBC and onion cell slice placed onto one another. The higher axial resolution is achieved for sectioning due to LSC property of the light source which is otherwise not possible by means of purely temporal coherence property of He–Ne laser.
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References
H.M. Subhash, Full-field and single-shot full-field optical coherence tomography: a novel technique for biomedical imaging applications. Adv. Opt. Technol. 2012 (2012)
A. Safrani, I. Abdulhalim, Ultrahigh-resolution full-field optical coherence tomography using spatial coherence gating and quasi-monochromatic illumination. Opt. Lett. 37, 458–460 (2012)
A. Ahmad, T. Mahanty, V. Dubey, A. Butola, B.S. Ahluwalia, D.S. Mehta, Effect on the longitudinal coherence properties of a pseudothermal light source as a function of source size and temporal coherence. Opt. Lett. 44, 1817–1820 (2019)
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Bhatt, S., Dubey, V., Mehta, D.S. (2021). Longitudinal Spatial Coherence Gated Optical Tomography and Topography. In: Singh, K., Gupta, A.K., Khare, S., Dixit, N., Pant, K. (eds) ICOL-2019. Springer Proceedings in Physics, vol 258. Springer, Singapore. https://doi.org/10.1007/978-981-15-9259-1_126
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DOI: https://doi.org/10.1007/978-981-15-9259-1_126
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