Browsing School of Physics (Scholarly Articles) by Author "McNamara, Paul M."
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Characterization of an amplified piezoelectric actuator for multiple reference optical coherence tomography
O'Gorman, Sean; Neuhaus, Kai; Alexandrov, Sergey; Hogan, Josh; Wilson, Carol; McNamara, Paul M.; Leahy, Martin (Optica, 2018-08-30)The characterization of an amplified piezoelectric actuator (APA) as a new axial scanning method for multiple-reference optical coherence tomography (MR-OCT) is described. MR-OCT is a compact optical imaging device based ... -
Performance review of multiple reference versus time domain optical coherence tomography
Neuhaus, Kai; McNamara, Paul M.; Alexandrov, Sergey; O'Gorman, Seán; Hogan, Josh; Wilson, Carol; Leahy, Martin J. (IEEE, 2018-04-19)We present a detailed characterization of noise sources in multiple reference optical coherence tomography (MR-OCT) compared to time-domain OCT (TD-OCT). The noise characteristics were modeled based on the TD-OCT noise ... -
Simultaneous en-face imaging of multiple layers with multiple reference optical coherence tomography
Neuhaus, Kai; O’Gorman, Seán; McNamara, Paul M.; Alexandrov, Sergey; Hogan, Josh; Wilson, Carol; Leahy, Martin J. (Society of Photo-optical Instrumentation Engineers, 2017-08-22)A technique based on multiple reference optical coherence tomography (MR-OCT) is proposed for simultaneous imaging at multiple depths. The technique has been validated by imaging a reference sample and a fingerprint in-vivo. ... -
Spatial frequency domain correlation mapping optical coherence tomography for nanoscale structural characterization
Alexandrov, Sergey; McNamara, Paul M.; Das, Nandan; Zhou, Yi; Lynch, Gillian; Hogan, Josh; Leahy, Martin (AIP Publishing, 2019-09-16)Most of the fundamental pathological processes in living tissues exhibit changes at the nanoscale. Noninvasive, label-free detection of structural changes in biological samples pose a significant challenge to both researchers ...