1. Northwestern University

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    1. Mentioned In 174 Articles

    2. Method for identifying refractive-index fluctuations of a target

      Method for identifying refractive-index fluctuations of a target
      Systems and methods for identifying refractive-index fluctuations of a target are described in this application. One embodiment includes identifying one or more properties of emergent light, the emergent light to be emergent from a target, and determining refractive-index fluctuations of the target based on the one or more properties of the emergent light. The determining refractive-index fluctuations further comprises determining one or more of the variance of the refractive-index fluctuations ...
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    3. Estimation of oxygen saturation from erythrocytes by high-resolution spectroscopic optical coherence tomography

      Estimation of oxygen saturation from erythrocytes by high-resolution spectroscopic optical coherence tomography
      We demonstrate the feasibility of estimating hemoglobin oxygen saturation (SaO2) from erythrocytes over a visible wavelength band using high-resolution spectroscopic optical coherence tomography (SOCT). We take SOCT spectra from individual cells on in vitro human blood phantoms and calculate SaO2 by fitting the spectra to an analytical model. We also use diffusive spectroscopy (DS) measurements, which is validated by direct measurement of oxygen partial pressure, as a comparison. The result ...
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    4. Complete Two-dimensional Muellermetric Imaging of Biological Tissue Using Heterodyned Optical Coherence Tomography

      Complete Two-dimensional Muellermetric Imaging of Biological Tissue Using Heterodyned Optical Coherence Tomography
      A polarization-sensitive optical coherence tomography system based on heterodyning and filtering techniques is built to perform Stokesmetric imaging of different layers of depths in a porcine tendon sample. The complete 4\times4 backscattering Muellermetric images of one layer are acquired using such a system. The images reveal information indiscernible from a conventional OCT system.
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    5. System for identifying refractive-index fluctuations of a target

      System for identifying refractive-index fluctuations of a target
      Systems and methods for identifying refractive-index fluctuations of a target are described in this application. One embodiment includes identifying one or more properties of emergent light, the emergent light to be emergent from a target, and determining refractive-index fluctuations of the target based on the one or more properties of the emergent light. The determining refractive-index fluctuations further comprises determining one or more of the variance of the refractive-index fluctuations ...
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    6. Analyzing absorption and scattering spectra of micro-scale structures with spectroscopic optical coherence tomography

      Analyzing absorption and scattering spectra of micro-scale structures with spectroscopic optical coherence tomography
      We demonstrate the feasibility of characterizing the absorption and scattering spectra of micron-scale structures in a turbid medium using a spectroscopic optical coherence tomography (SOCT) system with a bandwidth of 430-650nm. SOCT measurements are taken from phantoms composed of fluorescent microspheres. The absorption and scattering spectra are recovered with proper selections of spatial window width in the post processing step. Furthermore, we present an analysis using numerical OCT simulation based ...
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    7. Imaging Of Congenital Toxoplasmosis Macular Scars With Optical Coherence Tomography.

      In a retrospective observational case series of 10 consecutive patients (13 eyes), congenital macular toxoplasmosis scars were qualitatively and quantitatively evaluated by optical coherence tomography and fundus photos. Explanations were proposed for patients with better than expected vision.Page: 631DOI: 10.1097/IAE.0b013e318198d8deAuthors: GARG, SEEMA MD, PhD; METS, MARILYN B. MD; BEARELLY, SRILAXMI MD; METS, REBECCA MD, MPH
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    8. 166-174 of 174 « 1 2 ... 9 10 11 12
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  2. About Northwestern University

    Northwestern University

    Northwestern University is a private research university located in Evanston, Illinois and downtown Chicago, Illinois.  Several of Northwestern's professional schools such as the School of Law, the Feinberg School of Medicine, and parts of the Kellogg School of Management are located in the Streeterville neighborhood of downtown Chicago. 

    Biophotonics Laboratory at Northwestern University.  The main direction of the Biophotonics laboratory (Principal Investigator: Prof. Vadim Backman) is the development of novel optical spectral and imaging techniques for non-invasive screening, diagnosis and detection of disease as well as characterization of biological and bioengineered tissue.