1. Articles from Anjul Davis

    1-3 of 3
    1. Agile Imaging System

      Agile Imaging System

      An agile optical imaging system for optical coherence tomography imaging using a tunable source comprising a wavelength tunable VCL laser is disclosed. The tunable source has long coherence length and is capable of high sweep repetition rate, as well as changing the sweep trajectory, sweep speed, sweep repetition rate, sweep linearity, and emission wavelength range on the fly to support multiple modes of OCT imaging. The imaging system also offers new enhanced dynamic range imaging capability for accommodating bright reflections. Multiscale imaging capability allows measurement over orders of magnitude dimensional scales. The imaging system and methods for generating the waveforms ...

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    2. Quantitative Measurement of Blood Flow Dynamics in Embryonic Vasculature Using Spectral Doppler Velocimetry

      The biophysical effects of blood flow are known to influence the structure and function of adult cardiovascular systems. Similar effects on the maturation of the cardiovascular system have been difficult to directly and non-invasively measure due to the small size of the embryo. Optical coherence tomography (OCT) has been shown to provide high spatial and temporal structural imaging of the early embryonic chicken heart. We have developed an extension of Doppler OCT, called spectral Doppler velocimetry (SDV), that will enable direct, non-invasive quantification of blood flow and shear rate from the early embryonic cardiovascular system. Using this technique, we calculated ...
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    3. Methods and systems for reducing complex conjugate ambiguity in interferometric data

      A complex conjugate ambiguity can be resolved in an Optical Coherence Tomography (OCT) interferogram. A reference light signal is propagated along a reference path. A sample light signal is impinged on a sample reflector. The reference light signal is frequency shifted with respect to the sample light signal to thereby separate a positive and a negative displacement of a complex conjugate component of the OCT interferogram.
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    1-3 of 3
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  2. Topics in the News

    1. (3 articles) Anjul M. Davis
    2. (2 articles) Duke University
    3. (2 articles) Joseph A. Izatt
    4. (1 articles) Massachusetts Institute of Technology
    5. (1 articles) Alex E. Cable
    6. (1 articles) Michael A. Choma
    7. (1 articles) Florence G. Rothenberg
    8. (1 articles) Benjamin M. Potsaid
    9. (1 articles) Thorlabs
    10. (1 articles) Praevium Research
    11. (1 articles) University of Copenhagen
    12. (1 articles) University of Miami
    13. (1 articles) University of Ulsan
    14. (1 articles) Chinese Academy of Sciences
    15. (1 articles) Polytechnique Montreal
    16. (1 articles) Frédéric Lesage
    17. (1 articles) Young H. Yoon
    18. (1 articles) Jon Holmes
    19. (1 articles) Yoon Jeon Kim
    20. (1 articles) Michelson Diagnostics
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    Agile Imaging System The effect of software versions on the measurement of retinal vascular densities using optical coherence tomography angiography Peripapillary and Macular Microcirculation in Glaucoma Patients of African and European Descent Using Optical Coherence Tomography Angiography Comparison of two swept-source optical coherence tomography-based biometry devices Optical coherence tomography angiographic findings of lamellar macular hole: comparisons between tractional and degenerative subtypes Cerebral tissue pO2 response to treadmill exercise in awake mice Morphometric Optical Imaging of Microporated Nail Tissue: An Investigation of Intermethod Agreement, Reliability, and Technical Limitations Differences between Scheimpflug and optical coherence tomography in determining safety distances in eyes with an iris-fixating phakic intraocular lens Clinical efficacy of optical coherence tomography in sellar mass lesions: a meta-analysis In vivo characterization of extramammary Paget's disease by ultra‐high cellular resolution optical coherence tomography Optical coherence tomography‐based determination of ischaemia onset – the temporal dynamics of retinal thickness increase in acute central retinal artery occlusion Direct inverse linearization of piezoelectric actuator’s initial loading curve and its applications in full-field optical coherence tomography (FF-OCT)