Measurement of degree of orientation of high polymer using rotating linear polarization imaging

2009 ◽  
Author(s):  
Dongzhi Li ◽  
Ran Liao ◽  
Nan Zeng ◽  
Yonghong He ◽  
Hui Ma
Keyword(s):  
Linear Polarization ◽  
High Polymer ◽  
Polarization Imaging ◽  
Degree Of Orientation

Penetration depth of linear polarization imaging for two-layer anisotropic samples

2011 ◽  
Vol 50 (23) ◽  
pp. 4681 ◽  
Author(s):  
Ran Liao ◽  
Nan Zeng ◽  
Dongzhi Li ◽  
Tianliang Yun ◽  
Yonghong He ◽  
...  
Keyword(s):  
Penetration Depth ◽  
Linear Polarization ◽  
Polarization Imaging

scholarly journals 4-domain twisted liquid crystal micropolarizer array for visible linear polarization imaging

2021 ◽  
Author(s):  
Shiyuan Zhang ◽  
Chang Liu ◽  
Zijun Sun ◽  
Quanquan Mu ◽  
Juan Campos Coloma ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Linear Polarization ◽  
Polarization Imaging

scholarly journals Influence of absorption in linear polarization imaging of melanoma tissues

2014 ◽  
Vol 07 (03) ◽  
pp. 1450009 ◽  
Author(s):  
Dongzhi Li ◽  
Honghui He ◽  
Nan Zeng ◽  
Weidong Xie ◽  
Ran Liao ◽  
...  
Keyword(s):  
Linear Polarization ◽  
Imaging Techniques ◽  
Mouse Skin ◽  
Bottom Layer ◽  
Degree Of Polarization ◽  
Layer Model ◽  
Polarization Imaging ◽  
Contrast Mechanism ◽  
Two Layer Model ◽  
Difference Imaging

The contrast mechanism of different polarization imaging techniques for melanoma in mouse skin is studied using both experiments and Monte Carlo simulations. Total intensity, linear polarization difference imaging (DPI), degree of polarization imaging (DOPI) and rotating linear polarization imaging (RLPI) are applied and the relative contrasts of these polarization imaging methods between the normal and cancerous tissues are compared. A two-layer absorption-scattering model is proposed to explain the contrast mechanism of the polarization imaging for melanoma. By taking into account of both scattering of symmetrical and asymmetrical scatterers and absorption of inter-scatterer medium, the two-layer model reproduces the relative contrasts for polarization images observed in experiments. The simulation results also show that, the parameters of polarization imaging change more dramatically with the variation of absorption in the bottom layer than the top layer.

scholarly journals Detection of Tendon Tears by Degree of Linear Polarization Imaging

2009 ◽  
Vol 13 (4) ◽  
pp. 472-477 ◽  
Author(s):  
Ji-Hoon Kim ◽  
Jung-Hwan Oh ◽  
Hyun-Wook Kang ◽  
Ho Lee ◽  
Jee-Hyun Kim
Keyword(s):  
Linear Polarization ◽  
Polarization Imaging ◽  
Tendon Tears

scholarly journals Rotating linear polarization imaging technique for anisotropic tissues

2010 ◽  
Vol 15 (3) ◽  
pp. 036014 ◽  
Author(s):  
Ran Liao ◽  
Nan Zeng ◽  
Xiaoyu Jiang ◽  
Dongzhi Li ◽  
Tianliang Yun ◽  
...  
Keyword(s):  
Linear Polarization ◽  
Imaging Technique ◽  
Polarization Imaging

Perceptually uniform color space for visualizing trivariate linear polarization imaging data

2018 ◽  
Vol 43 (11) ◽  
pp. 2426 ◽  
Author(s):  
Andrew W. Kruse ◽  
Andrey S. Alenin ◽  
Israel J. Vaughn ◽  
J. Scott Tyo
Keyword(s):  
Linear Polarization ◽  
Color Space ◽  
Imaging Data ◽  
Polarization Imaging

Differential polarization imaging of sickled cells

1988 ◽  
Vol 46 ◽  
pp. 62-63
Author(s):  
Marcos F. Maestre
Keyword(s):  
Optical Properties ◽  
Theoretical Approach ◽  
Polarized Light ◽  
Polarization Microscopy ◽  
Spectroscopic Techniques ◽  
Polarization Imaging ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Microscopic Scale ◽  
Chiral Structures

Recently we have developed a form of polarization microscopy that forms images using optical properties that have previously been limited to macroscopic samples. This has given us a new window into the distribution of structure on a microscopic scale. We have coined the name differential polarization microscopy to identify the images obtained that are due to certain polarization dependent effects. Differential polarization microscopy has its origins in various spectroscopic techniques that have been used to study longer range structures in solution as well as solids. The differential scattering of circularly polarized light has been shown to be dependent on the long range chiral order, both theoretically and experimentally. The same theoretical approach was used to show that images due to differential scattering of circularly polarized light will give images dependent on chiral structures. With large helices (greater than the wavelength of light) the pitch and radius of the helix could be measured directly from these images.

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