Optical coherence tomography (OCT) is capable of imaging microstructures within translucid samples. We develop dynamic focus (DF) on time domain (TD) version of the OCT technology. DF means moving the confocal gate in synchronism with the depth scanning via the coherence gate. The DF-OCT set-up is implemented for imaging samples at 1300 nm. We also are developing a specialized probe integrated with a retractor spatula that can be used for image-guidance of surgery. The probe is designed based on bundled full-field swept source OCT technology. The technology will be utilized for the assessment of resection margins in brain tumor removal procedure.

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• M.R.N. Avanaki et al. “En-face time-domain optical coherence tomography with dynamic focus for high-resolution imaging”, Journal of biomedical optics 22 (5), 056009 (2017) 

• M.R.N. Avanaki et al. “Algorithm for excitation optimization of Fabry–Pérot filters used in swept sources”, IEEE Photonics Technology Letters 25 (5), 472-475 (2013) 

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