• Applying the Polarization Memory Effect in Polarization-gated Subsurface Imaging 

    Nothdurft, Ralph; Yao, Gang, Ph. D. (The Optical Society of America, 2006-05)
    Polarization memory is a well established phenomenon occurring when circularly polarized light propagates in turbid media of larger particles. Recent studies have demonstrated that the circularly crosspolarized imaging can ...
  • Effects of Turbid Media Optical Properties on Object Visibility in Subsurface Polarization Imaging 

    Nothdurft, Ralph; Yao, Gang, Ph. D. (The Optical Society of America, 2006-08)
    We studied the effectiveness of using polarized illumination and detection to enhance the visibility of targets buried in highly scattering media. The effects of background optical properties including scattering coefficient, ...
  • Equi-intensity Distribution of Optical Reflectance in a Fibrous Turbid Medium 

    Shuaib, Ali; Yao, Gang, Ph. D. (The Optical Society of America, 2010-02)
    Light propagation in a fibrous anisotropic scattering medium is quite different from that in an isotropic medium. Both the anisotropic diffuse equation (ADE) and the continuous time random walk (CTRW) theory predict that ...
  • Expression of Target Optical Properties in Subsurface Polarization-gated Imaging 

    Nothdurft, Ralph; Yao, Gang, Ph. D. (The Optical Society of America, 2005-05)
    We examined the expression of target optical properties in subsurface polarization imaging under linearly and circularly polarized illumination. Reflecting, scattering, and absorption targets were imaged in tissue mimic ...
  • Imaging 2D Optical Diffuse Reflectance in Skeletal Muscle 

    Ranasinghesagara, Janaka C.; Yao, Gang, Ph. D. (The Optical Society of America, 2007-04)
    We discovered a unique pattern of optical reflectance from fresh prerigor skeletal muscles, which can not be described using existing theories. A numerical fitting function was developed to quantify the equiintensity ...
  • Monitoring Sarcomere Structure Changes in Whole Muscle Using Diffuse Light Reflectance 

    Xia, Jinjun, 1971-; Weaver, Amanda; Gerrard, David E.; Yao, Gang, Ph. D. (Society of Photo-Optical Instrumentation Engineers, 2006-07)
    Normal biomechanical and physiological functions of striated muscles are facilitated by the repeating sarcomere units. Light scattering technique has been used in studying single extracted muscle fibers. However, few ...
  • Polarization-sensitive Reflectance Imaging in Skeletal Muscle 

    Li, Xin; Ranasinghesagara, Janaka C.; Yao, Gang, Ph. D. (The Optical Society of America, 2008-06)
    We acquired polarization-sensitive reflectance images in freshly excised skeletal muscle samples. The obtained raw images varied depending on the incident and detection polarization states. The Stokes vectors were measured ...