Extended depth of focus adaptive optics spectral domain optical coherence
tomography |
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Authors: | Kazuhiro Sasaki Kazuhiro Kurokawa Shuichi Makita Yoshiaki Yasuno |
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Institution: | Computational Optics Group in the University of Tsukuba, Tsukuba, Japan |
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Abstract: | We present an adaptive optics spectral domain optical coherence tomography (AO-SDOCT) with a
long focal range by active phase modulation of the pupil. A long focal range is achieved by
introducing AO-controlled third-order spherical aberration (SA). The property of SA and its
effects on focal range are investigated in detail using the Huygens-Fresnel principle, beam
profile measurement and OCT imaging of a phantom. The results indicate that the focal range is
extended by applying SA, and the direction of extension can be controlled by the sign of
applied SA. Finally, we demonstrated in vivo human retinal imaging by altering
the applied SA.OCIS codes: (170.4500) Optical coherence tomography, (110.1080) Active or adaptive optics, (170.4470) Ophthalmology |
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