1. Martin J. Leahy

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    1. Mentioned In 70 Articles

    2. The how and why of a $10 optical coherence tomography system

      The how and why of a $10 optical coherence tomography system
      Optical Coherence Tomography (OCT) is the fastest growing medical imaging modality with more than $1Bln worth of scans ordered and over $400M worth of equipment shipped in 2010, just nine years after its commercialization. It is at various stages of acceptance and approvals for eye care, coronary care and skin cancer care and is spreading rapidly to other medical specialties. Indeed, it is the leading success of translation of biophotonics ...
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    3. Quantitative assessment of rat corneal thickness and morphology during stem cell therapy by high-speed optical coherence tomography

      Quantitative assessment of rat corneal thickness and morphology during stem cell therapy by high-speed optical coherence tomography
      Optical Coherence Tomography (OCT) is a non-invasive 3 dimensional optical imaging modality that enables high resolution cross sectional imaging in biological tissues and materials. Its high axial and lateral resolution combined with high sensitivity, imaging depth and wide field of view makes it suitable for wide variety of high resolution medical imaging applications at clinically relevant speed. With the advent of swept source lasers, the imaging speed of OCT has ...
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    4. Optimization of modified scanning protocol based correlation mapping optical coherence tomography at 200 kHz VCSEL source for in vivo microcirculation imaging applications

      Optimization of modified scanning protocol based correlation mapping optical coherence tomography at 200 kHz VCSEL source for in vivo microcirculation imaging applications
      Optical Coherence Tomography (OCT) is a non-invasive 3 dimensional optical imaging modality that enables high resolution cross sectional imaging in biological tissues and materials. Unlike other 3 D medical imaging modalities, OCT provides high axial and lateral resolution combined with high sensitivity, imaging depth and wide field of view which makes it suitable for wide variety of medical imaging applications1. Apart from analysing the morphological characteristics of the biological organs ...
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    5. Evaluation of a polarization sensitive multiple reference optical coherence tomography system

      Evaluation of a polarization sensitive multiple reference optical coherence tomography system
      Multiple reference optical coherence tomography (MR-OCT) is a new compact optical sensor platform based on a small form factor recirculating reference arm scanning optical delay, which promises a robust, cost-effective semisolid state design for integration with next generation mobile devices. The miniature re-circulating optical delay is based on a voice coil motor (VCM) actuator and a partial mirror. Imaging capability of MR-OCT has been recently demonstrated using a non-polarizing bulk ...
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    6. Development of a miniature multiple reference optical coherence tomography imaging device

      Development of a miniature multiple reference optical coherence tomography imaging device
      Multiple reference optical coherence tomography (MR-OCT) is a new technology ideally suited to low-cost, compact OCT imaging. This modality is an extension of time-domain OCT with the addition of a partial mirror in front of the reference mirror. This enables extended, simultaneous depth scanning with the relatively short sweep of a miniature voice coil motor on which the scanning mirror is mounted. Applications of this technology include biometric security, ophthalmology ...
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    7. The impact of relative intensity noise on the signal in multiple reference optical coherence tomography

      The impact of relative intensity noise on the signal in multiple reference optical coherence tomography
      Multiple reference optical coherence tomography (MR-OCT) applies a unique low-cost solution to enhance the scanning depth of standard time domain OCT by inserting an partial mirror into the reference arm of the interferometric system. This novel approach achieves multiple reflections for different layers and depths of an sample with minimal effort of engineering and provides an excellent platform for low-cost OCT systems based on well understood production methods for micro-mechanical ...
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    8. Depth-dependent displacement sensitivity analysis and the influence of Doppler angle for quantitative assessment of mechanical properties using phase-sensitive spectral domain optical coherence tomography

      Depth-dependent displacement sensitivity analysis and the influence of Doppler angle for quantitative assessment of mechanical properties using phase-sensitive spectral domain optical coherence tomography
      Optical coherence elastography (OCE) asesses the mechanical properties of samples by applying a mechanical stimulation and detecting the resulting sample displacement using optical coherence tomography (OCT). OCE methods which utilise the phase of the OCT signal offer the potential to detect displacements on the sub-nanometre scale. However, the displacement sensitivity achieveable is directly related to the signal-to-noise ratio and phase stability of the underlying OCT system. Furthermore, the estimation of ...
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    9. Assessment of curing behavior of light-activated dental composites using intensity correlation based multiple reference optical coherence tomography

      Assessment of curing behavior of light-activated dental composites using intensity correlation based multiple reference optical coherence tomography
      Background and Objectives Monitoring the curing kinetics of light-activated resin is a key area of research. These resins are used in restorative applications and particularly in dental applications. They can undergo volumetric shrinkage due to poor control of the depth dependent curing process, modulated by the intensity and duration of the curing light source. This often results in the formation of marginal gaps, causing pain and damage to the restoration ...
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    10. Compact Imaging and Leading Irish University Bio-Photonics Laboratory Announce Second Extension of Innovative Research Collaboration

      Compact Imaging and Leading Irish University Bio-Photonics Laboratory Announce Second Extension of Innovative Research Collaboration
      ...applications. The Company’s IP centers on its MRO system.

      Professor Martin Leahy, Chair of Applied Physics at NUI Galway and Director of the Tissue Optics and Microcirculation Im...

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    11. Postdoctoral Researcher in Photonics Technologies for Miniature Biometric and Healthcare Instrumentation at the National University of Ireland, Galway

      Postdoctoral Researcher in Photonics Technologies for Miniature Biometric and Healthcare Instrumentation at the National University of Ireland, Galway
      ...tter, CV, and the contact details of three referees should be sent, via e-mail (in word or PDF only) to Prof. Martin J. Leahy email: martin.leahy@nuigalway.ie Please put reference number NUIG 095-15 in subject line of e-...
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    12. 3D nondestructive testing system with an affordable multiple reference optical-delay-based optical coherence tomography

      3D nondestructive testing system with an affordable multiple reference optical-delay-based optical coherence tomography
      ...ing author: hrebeshms@gmail.com Roshan Dsouza, Hrebesh M. Subhash, Kai Neuhaus, Josh Hogan, Carol Wilson, and Martin Leahy, "3D nondestructive testing system with an affordable multiple reference optical-delay-based opti...
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  2. About Martin J. Leahy

    Martin J. Leahy

    Martin Leahy is the Chair of Applied Physics and Head of the Tissue Optics and Microcirculation Imaging group at the School of Physics, National University of Ireland, Galway. Martin Leahy completed a DPhil at the University of Oxford and he and a colleague established Oxford Optronix Ltd., where he was Director of R&D. From 1995 he had various research and teaching posts at the University of Oxford. He then joined the Stokes Research Institute where he conducted industry led R&D and later the Physics Department at the University of Limerick where led research groups in energy and biophotonics and lectured in physics. He has secured more than €7M in external R&D funding since 2003. He is an adjunct professor at the Royal College of Surgeons, Fellow of the Institute of Physics in Ireland, Fellow of the Royal Academy of Medicine in Ireland and Fellow of SPIE. He is a co-chair, executive organizing committee member and panel moderator for SPIE Photonics West BiOS in San Francisco and host of the BioPIC European Bioimaging conference. Editorial Board member of the Journal of Biomedical Optics. Prof Leahy was founding MD of Limerick West Windfarms Ltd. and Millstream Energy and PI on the research projects that spun out Biomass Heating Solutions Ltd. and Wheelsbridge AB. Since his return to full-time academia, he has played a leading role in graduate biophotonics education through NBIP, UL and the Biophotonics and Imaging Graduate Summer School. In 2010 he delivered a dozen international invited lectures and published more than a dozen ISI journal articles. He is currently Chair of Applied Physics at NUI Galway.

  3. Quotes

    1. Compact Imaging’s MRO™ architecture has clear and sustainable advantages in size, cost, and power consumption over other OCT technologies...We’re delighted that our team in Galway is contributing so significantly to a dramatically different version of OCT technology that can make advanced optical imaging and biometry accessible both outside the clinic to patients and other health-oriented consumers and to developing countries where provision of affordable, ‘fit for purpose’ diagnostics is a real need.
      In Leading Irish University Bio-Photonics Laboratory And Compact Imaging Extend Agreement For Innovative Research Collaboration
    2. Physics has delivered extraordinary advances in almost every facet of modern life...From the humble thermometer and stethoscope to X-Ray, CT, MRI, ultrasound, PET and radiotherapy, our health has been transformed by these advances. Photonics promises to bring healthcare to the next level, as it is the only means to see cells and molecules in small, accessible, low cost and safe imaging systems. Compact Imaging’s multiple-reference OCT technology has the potential to harness all these advantages, delivering solutions to health and security markets with a distinct edge..
      In Compact Imaging Reaches Agreement On Research Collaboration with Irish Universities