scholarly journals The State of Polarization of Light Scattered by Anisotropic Spheroids

1989 ◽  
Vol 62 (3) ◽  
pp. 697-700 ◽  
Author(s):  
Yoh Sano
Keyword(s):  
The State ◽  
State Of Polarization ◽  
Polarization Of Light

scholarly journals Polarimetry for Photonic Integrated Circuits

2019 ◽  
Vol 9 (15) ◽  
pp. 2987
Author(s):  
Moritz Baier ◽  
Axel Schoenau ◽  
Francisco M. Soares ◽  
Martin Schell
Keyword(s):  
Integrated Circuits ◽  
Photonic Integrated Circuits ◽  
The State ◽  
Polarization Dependence ◽  
Complete Picture ◽  
Wide Range ◽  
State Of Polarization ◽  
Matrix Yielding ◽  
Polarization Of Light

Photonic integrated circuits (PICs) play a key role in a wide range of applications. Very often, the performance of PICs depends strongly on the state of polarization of light. Classically, this is regarded as undesirable, but more and more applications emerge that make explicit use of polarization dependence. In either case, the characterization of the polarization properties of a PIC can be a nontrivial task. We present a way of characterizing PICs in terms of their full Müller matrix, yielding a complete picture of their polarization properties. The approach is demonstrated by carrying out measurements of fabricated PICs.

Enhanced Tire Mark Visualization Using Polarization Imaging

2013 ◽  
Author(s):  
Matthew L. Schwall ◽  
Daniel E. Rosenfeld ◽  
Joel C. Wilson
Keyword(s):  
Processing Technique ◽  
Light Polarization ◽  
The State ◽  
Image Processing Technique ◽  
Accurate Identification ◽  
Polarization Imaging ◽  
Reflected Light ◽  
Contrast Enhanced ◽  
State Of Polarization ◽  
Polarization Of Light

Accident reconstructions often rely on measurements of tire marks left on the roadway surface. However, accurate identification and measurement of these marks can be challenging when the marks are faint, as is often the case with braking marks left by vehicles equipped with anti-lock (ABS) brakes. This paper describes an image processing technique that exploits differences in the polarization of reflected light to create images that significantly enhance tire mark visualization. The technique requires multiple photographs taken from the same perspective, but with a polarizing filter oriented at different angles. Based on these digital images, the state of polarization of light can be determined for each pixel. A new image can then be created in which the intensity of the image is proportional to the state of light polarization. Results are presented using ABS tire marks, and demonstrate that under certain conditions the resulting image more clearly differentiates tire marks than conventional photographs or even contrast enhanced conventional photographs.

A Novel Technique for Reconstruction of the State of Polarization by Fourier Transform Holography

1998 ◽  
Vol 27 (2) ◽  
pp. 63-69
Author(s):  
Soumika Munsm ◽  
S. Bandyopadhyay ◽  
Ajay Ghosh
Keyword(s):  
Fourier Transform ◽  
The State ◽  
Novel Technique ◽  
State Of Polarization

When elites polarize over polarization: Framing the polarization debate in Turkey – RETRACTED

2018 ◽  
Vol 59 ◽  
pp. 109-133
Author(s):  
Senem Aydın-Düzgit ◽  
Evren Balta
Keyword(s):  
Civil Society ◽  
Qualitative Interviews ◽  
Radical Change ◽  
The State ◽  
Considerable Degree ◽  
Institutional Factors ◽  
Degree Of Polarization ◽  
State Of Polarization ◽  
The Government ◽  
Near Future

AbstractThis article aims to explore the views of the Turkish elite on the state of polarization in Turkey. By identifying four political frames—namely, harmony, continuity/decline, conspiracy, and conflict—that selected Turkish political and civil society elites use in discussing the phenomenon of polarization in the country through their contributions to a workshop and in-depth qualitative interviews, the article finds that there is a considerable degree of polarization among the Turkish elite regarding their views on the presence of polarization in Turkey. Moreover, this overlaps with the divide between the government and the opposition in the country. An analysis of the justificatory arguments employed in constituting the aforementioned frames shows that, while those elites who deny the existence of polarization seek its absence in essentialist characteristics of society, in reductionist comparisons with history, or in internal/external enemies, those who acknowledge polarization’s presence look for its roots in political and institutional factors and processes. The article highlights how, given the denial of polarization by the pro-government elite and the substantial gap between the two camps’ justificatory narratives, the currently reported high rates of polarization in Turkey can, at best, be expected to remain as is in the near future, barring a radical change in political constellations.

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