Article
Engineering, Biomedical
Muaz Iqbal, Shamim Khan, Banat Gul, Manzoor Ahmad, Iftikhar Ahmad
Summary: Mueller matrix polarimetry quantifies changes in polarization of light beam through a sample, but multiple polarization effects occurring simultaneously in tissues can hinder unique interpretation. Various decomposition schemes, such as Mueller matrix transformation and Mueller matrix differential decomposition, are used to untangle these effects. Comparing these two methods for tissue and phantom samples revealed consistent total depolarization values but significant differences in total retardance. Linear fitting of the scatter plot showed good correlation between corresponding polarization parameters of the two methods.
BIOMEDICAL SIGNAL PROCESSING AND CONTROL
(2021)
Article
Physics, Applied
Mariacarla Gonzalez, Razvigor Ossikovski, Tatiana Novikova, Jessica C. Ramella-Roman
Summary: A Mueller matrix can characterize the polarimetric properties of a medium, and parameters like depolarization, retardance and diattenuation can be obtained through decomposition methods. The introduction of a simplified 3 x 4 Mueller matrix and decomposition algorithm provides an effective way to measure and characterize samples, calculating properties such as depolarization, retardance and orientation.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Multidisciplinary Sciences
Wanrong Gao
Summary: This work introduces the concept of anisotropic dielectric susceptibility matrix of anisotropic medium for both nondepolarizing and depolarizing medium, providing a new way of analyzing light scattering properties of anisotropic media illuminated by polarized light. The explicit expressions for the elements of the scattering matrix, Jones matrix, and Mueller matrix are given, which may prove stimulating for researchers working on new methods for analyzing light scattering properties.
SCIENTIFIC REPORTS
(2021)
Article
Optics
Dongjin Wu, Wanrong Gao, Ying Chang
Summary: This work presents a simplified cylinder-birefringence optical model of the human skin dermis and measures the polarization parameters of human fingernail skin. The accuracy and stability of the Mueller matrix polarization decomposition (MMPD) and the direct Mueller matrix (DMM) methods are compared under different incident and scattering angles. A significant contribution of this study is the use of a polarization-sensitive optical coherence tomography device to obtain the value of birefringence of the skin dermis from living human index finger nail images. The results provide a basis for selecting incident and scattering angles when measuring biological samples with fibrous structures in the future.
OPTICS AND LASERS IN ENGINEERING
(2023)
Article
Materials Science, Multidisciplinary
Ying Chang
Summary: Understanding and revealing the mechanism or sources of medium depolarization behaviors is crucial. The paper presents an interpretation method using physical generators, different rotation matrices, and their evolutions to express depolarizing differential matrix. The expression is obtained by summing up nine physical generators. Relations between generators are derived using different rotation matrices, providing new expressions with different combinations of generators. It is found that different expressions can be seen as equivalent results obtained under different generators, explaining the mechanism of depolarization effects in media. Transformations among these expressions demonstrate the uniqueness of the interpretation method and the diversity of representations, corresponding to the mechanism of depolarization behaviors and the various possibilities of causes.
RESULTS IN PHYSICS
(2023)
Article
Optics
Anton Sdobnov, Volodimir A. Ushenko, Liliya Trifonyuk, Olexander Dubolazov, Yuriy A. Ushenko, Alexander G. Ushenko, Irina Soltys, Vyacheslav K. Gantyuk, Alexander Bykov, Igor Meglinski
Summary: The polarization-based optical interference approach is expanded for differentiating prostate adenocarcinoma with varying grades and Gleason scores. This approach evaluates the local contrast of polarized interference patterns to determine the morphology of the biological tissue. By analyzing polarization patterns of histological sections, the developed approach accurately assesses the differentiation levels of prostate tumor tissues.
OPTICS AND LASERS IN ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Surojit Bhunia, Shubham Chandel, Sumanta Kumar Karan, Somnath Dey, Akash Tiwari, Susobhan Das, Nishkarsh Kumar, Rituparno Chowdhury, Saikat Mondal, Ishita Ghosh, Amit Mondal, Bhanu Bhusan Khatua, Nirmalya Ghosh, C. Malla Reddy
Summary: Living tissue utilizes stress-accumulated electrical charge for wound closure, while self-repairing synthetic materials typically need external stimuli. However, piezoelectric bipyrazole organic crystals autonomously self-heal with crystallographic precision.
Article
Optics
Bo Jiang, Kai Meng, Kamal Youcef-Toumi
Summary: This paper quantifies the error induced by Poisson-Gaussian noise on normalized Mueller matrix measurements through statistical analysis and proposes a method based on maximum likelihood estimation to mitigate these effects in spectroscopic ellipsometry signal demodulation. The noise is characterized through experiments on an in-house setup, and improved performance in dimension reconstruction is demonstrated through simulations.
Article
Chemistry, Multidisciplinary
Wen'ai Wang, Guoqiang Chen, Yanqiu Li
Summary: Malignant melanoma, the most serious type of skin cancer, is often misdiagnosed using conventional visual examination. Polarization imaging techniques have shown potential in improving diagnostic accuracy. In this study, a homemade high-fidelity Mueller matrix imaging polarimeter was used to analyze and differentiate human skin tissue sections. The results showed that vectorial retardance yielded higher accuracy rates than scalar retardance. A color-encoded vectorial retardance imaging method was implemented to address the clinical challenge of reading and analyzing each component of vectorial retardance. This work enables early diagnosis of skin cancer and provides a detailed analysis of cancer progression.
APPLIED SCIENCES-BASEL
(2023)
Article
Optics
Y. Chang, W. Gao
Summary: This new method allows for directly obtaining polarization properties from measured macroscopic Mueller matrices without the need for decomposition. By analyzing the canonical decomposition form of macroscopic Mueller matrices, the method accurately derives the parameters representing polarization and depolarization properties of a medium. The theoretical validation demonstrates the high accuracy of this method in extracting polarization properties from measured Mueller matrices.
OPTICS AND LASERS IN ENGINEERING
(2021)
Article
Optics
Yi-Hsin Lin, Yu-Jen Wang, Hung-Chun Lin, Ming-Long Lee, Po-Lun Chen
Summary: This paper investigates optical wave propagation through a curved-birefringent medium with anisotropic absorption. An optical model based on the Mueller matrix was built to predict the spatial distributions in light intensity and polarization. Experimental demonstrations using ellipsometry were also performed to showcase the use of the optical model.
Article
Optics
Xiuguo Chen, Jing Hu, Wenlong Chen, Shilong Yang, Yifu Wang, Shiyuan Liu
Summary: This letter proposes a multi-spectral diffraction-based overlay (DBO) metrology method that utilizes the linear relation between overlay errors and combinations of Mueller matrix elements. The proposed approach enables snapshot and direct measurement of overlay errors over a wide spectral range without the need for rotating or active polarization components.
Review
Engineering, Multidisciplinary
Chen XiuGuo, Gu HongGang, Liu JiaMin, Chen Chao, Liu ShiYuan
Summary: The paper reviews the principles, system layouts, and data analysis procedures of Mueller matrix ellipsometry (MME). It also introduces various applications of MME in the characterization of surfaces, interfaces, thin films, and nanostructures. The paper further presents new developments in MME, including broadband MME, high-resolution imaging MME, and high-speed MME, as well as emerging applications of MME. Conclusions and perspectives of advanced ellipsometry are drawn and discussed.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2022)
Article
Biochemical Research Methods
Deyan Ivanov, Viktor Dremin, Ekaterina Borisova, Alexander Bykov, Tatiana Novikova, Igor Meglinski, Razvigor Ossikovski
Summary: Tissue polarimetry shows promise in improving cancer diagnostics by providing relevant optical markers for pathological conditions. The enhanced diagnostic method for ex vivo colon specimens assessment utilizing Stokes and Mueller matrix polarimetry was validated to be accurate in distinguishing healthy and cancerous tissues. This approach offers valuable complementary information to aid in colon tissue diagnostics.
BIOMEDICAL OPTICS EXPRESS
(2021)
Article
Optics
Jiafeng Lu, Enrique Garcia-Caurel, Razvigor Ossikovski, Francois Courvoisier, Xianglong Zeng, Bertrand Poumellec, Matthieu Lancry
Summary: Chirality transfer from femtosecond laser direct writing in achiral transparent materials is caused by the interplay between anisotropic nanogratings and mechanical stress with non-parallel and non-perpendicular neutral axes. However, laser fabrication also induces significant linear birefringence. To precisely manipulate circular polarization properties and minimize linear birefringence, we propose a geometry-inspired multilayer method for direct writing of chiral waveplates. Theoretical analysis shows that our method achieves strong circular birefringence and provides a facile platform for chiral device exploration with minimal linear property existence.
Article
Optics
Oriol Arteaga, Enric Garcia-Caurel, Razvigor Ossikovski
Article
Multidisciplinary Sciences
Albert Van Eeckhout, Enric Garcia-Caurel, Teresa Garnatje, Merce Durfort, Juan Carlos Escalera, Josep Vidal, Jose J. Gil, Juan Campos, Angel Lizana
Article
Optics
Razvigor Ossikovski, Bandar Al Bugami, Enrique Garcia-Caurel, Shane R. Cloude
Article
Public, Environmental & Occupational Health
Daniel Ortega-Quijano, Noe Ortega-Quijano
Summary: The study shows that implementing age-selective social distancing measures during the pandemic can effectively reduce mortality rates and increase economic activity, which is crucial for maintaining a balance between public health and the economy.
INTERNATIONAL JOURNAL OF EPIDEMIOLOGY
(2021)
Article
Optics
Albert Van Eeckhout, Jose J. Gil, Enrique Garcia-Caurel, Javier Garcia Romero, Razvigor Ossikovski, Ignacio San Jose, Ignacio Moreno, Juan Campos, Angel Lizana
Summary: This article explores the link between depolarization measures and the physical nature and structure of material media. By using two complementary sets of depolarizing metrics, a complete description of the integral depolarizing properties of a sample can be achieved, offering new tools and understanding for the study and analysis of depolarizing properties of material media.
Article
Biochemical Research Methods
Carla Rodriguez, Albert Van Eeckhout, Laia Ferrer, Enrique Garcia-caurel, Emilio Gonzalez-arnay, Juan Campos, Angel Lizana
Summary: The potential of a predictive optical model method for tissue recognition based on statistical analysis of polarimetric indicators was highlighted. By analyzing experimental Mueller matrices of four biological tissues from 157 ex-vivo chicken samples, a logistic regression-based algorithm was developed to identify which tissue category a sample belongs to in a single dynamic measurement.
BIOMEDICAL OPTICS EXPRESS
(2021)
Article
Optics
Razvigor Ossikovski, Oriol Arteaga, Enrique Garcia-Caurel, Kurt Hingerl
Summary: An analytical model describing the polarimetric response of a depolarizing retarder with spatially varying retardance is presented, considering deterministic or random variations in the retarder parameters. The model provides mean values and uncertainties of the parameters, and its application is illustrated with experimental examples covering both deterministic and random cases.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION
(2022)
Article
Optics
Jiafeng Lu, Enrique Garcia-Caurel, Razvigor Ossikovski, Francois Courvoisier, Xianglong Zeng, Bertrand Poumellec, Matthieu Lancry
Summary: Chirality transfer from femtosecond laser direct writing in achiral transparent materials is caused by the interplay between anisotropic nanogratings and mechanical stress with non-parallel and non-perpendicular neutral axes. However, laser fabrication also induces significant linear birefringence. To precisely manipulate circular polarization properties and minimize linear birefringence, we propose a geometry-inspired multilayer method for direct writing of chiral waveplates. Theoretical analysis shows that our method achieves strong circular birefringence and provides a facile platform for chiral device exploration with minimal linear property existence.
Article
Materials Science, Multidisciplinary
B. Al Bugami, Y. Su, C. Rodriguez, A. Lizana, J. Campos, M. Durfort, R. Ossikovski, E. Garcia-Caurel
Summary: In this study, vine leaves (Vitis vinifera) were investigated using imaging polarimetry at a wavelength of 530 nm. The aim was to demonstrate the potential of polarimetry and polarimetric microscopy for characterizing vegetal tissues, using vine leaves as a case study. The analysis of the Mueller matrix image of the sample revealed observables directly related to the sample's physical properties. Birefringence and dichroism were found to be useful markers for identifying specific structures in the sample, while polarimetric images enhanced contrast and allowed the visualization of previously invisible structures.
Article
Optics
Anne Nguyen, Jean-Paul Hugonin, Anne-Lise Coutrot, Enrique Garcia-Caurel, Benjamin Vest, Jean-Jacques Greffet
Summary: This study reports the emission of polarized mid-wave infrared (MWIR) radiation from a 700 nm thick incandescent chiral metasurface. The polarization degree is above 0.5 with a circular polarization degree of 0.38 at 5 μm. The metasurface is heated by the Joule effect and the emission can be modulated beyond 10 MHz. This could enable detection techniques that use polarization as an additional degree of freedom.
Article
Optics
Jiafeng Lu, Mostafa Hassan, Francois Courvoisier, Enrique Garcia-Caurel, Francois Brisset, Razvigor Ossikovski, Xianglong Zeng, Bertrand Poumellec, Matthieu Lancry
Summary: Polarization manipulation is crucial for unlocking the versatility of light manufacturing, and existing techniques only focus on two-dimensional control. In this paper, we present a novel passive strategy using femtosecond laser written birefringent elements to shape polarization along the optical path. We demonstrate the generation of a three-dimensional structured Bessel beam with a slowly evolving polarization state, enabling the imprinting of twisted nanogratings and high optical rotation. Our work provides new perspectives on three-dimensional polarization manipulation and insights into applications in structured light and chiral device fabrication.
Article
Engineering, Electrical & Electronic
Pilar Garcia Parejo, Antonio Campos-Jara, Enric Garcia-Caurel, Oriol Arteaga, Alberto Alvarez-Herrero
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
(2020)
Article
Physics, Fluids & Plasmas
Elmar Slikboer, Pedro Viegas, Zdenek Bonaventura, Enric Garcia-Caurel, Ana Sobota, Anne Bourdon, Olivier Guaitella
PLASMA SOURCES SCIENCE & TECHNOLOGY
(2019)
Article
Optics
Jing Tian, Rubing Li, Sang Hyuk Yoo, Bertrand Poumellec, Enric Garcia-Caurel, Razvigor Ossikovski, Michel Stchakovsky, Celine Eypert, John Canning, Matthieu Lancry
Article
Physics, Applied
Elmar Slikboer, Ana Sobota, Olivier Guaitella, Enric Garcia-Caurel
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2018)
