Results 51 to 60 of about 1,140 (180)

Sub‐Diffraction and Irreversibly Tunable Imaging With Potato Starch Lenses

open access: yesAdvanced Optical Materials, Volume 14, Issue 39, 23 October 2026.
Native potato starch granules function as sustainable birefringent microlenses that enable polarization‐controlled conventional and vortex lensing via spin‐to‐orbital angular momentum conversion. They provide sub‐diffraction and spiral‐contrast imaging, support vortex‐array generation with controllable topological‐charge sign, exhibit irreversible ...
Petr Bouchal   +5 more
wiley   +1 more source

Computational Mueller matrix microscopic pathology based on differential decomposition for medical reference mapping

open access: yesFrontiers in Bioinformatics
IntroductionLabel-free quantitative polarimetric imaging provides access to physically interpretable tissue properties that are not available from conventional intensity-based microscopy, offering new opportunities for computational digital pathology and
Yuxuan Mao   +4 more
doaj   +1 more source

Ship Discrimination Using Polarimetric SAR Data and Coherent Time-Frequency Analysis

open access: yesRemote Sensing, 2013
This paper presents a new approach for the discrimination of ship responses using polarimetric SAR (PolSAR) data. The PolSAR multidimensional information is analyzed using a linear Time-Frequency (TF) decomposition approach, which permits to describe the
Canbin Hu   +2 more
doaj   +1 more source

Polarimetric Synthetic Aperture Radar Interpretation and Recognition: Advances and Perspectives

open access: yesLeida xuebao, 2020
Polarimetric Synthetic Aperture Radar (SAR), which can acquire fully polarimetric information, is widely used in civilian and military fields, such as earth observation, damage assessment, and reconnaissance.
WANG Xuesong, CHEN Siwei
doaj   +1 more source

A Practical Guide to Mueller Matrix Analysis of Chiroptical Materials

open access: yesChirality, Volume 38, Issue 10, October 2026.
This study presents a unified theoretical framework and closed‐form Mueller matrix expressions for analyzing chiroptical properties across six fundamental polarization properties that lead to different macroscopic symmetries. We provide an experimental protocol to successfully isolate intrinsic circular dichroism from apparent wavevector‐dependent ...
Oriol Arteaga   +2 more
wiley   +1 more source

Two‐Photon Fluorescence and Second‐Harmonic Generation Microscopy: Principles and Biomedical Applications

open access: yesJournal of Biophotonics, Volume 19, Issue 10, October 2026.
Compared with single‐photon methods, TPM enables deep‐tissue imaging using near‐infrared light, with excitation confined to the focal plane, thereby reducing photodamage. SHG microscopy images noncentrosymmetric biological structures such as collagen and myosin without fluorescent labels, offering direct structural contrast.
Kausalya Neelavara Makkithaya   +7 more
wiley   +1 more source

Soil moisture retrieval under wheat crop using RISAT-1 hybrid polarimetric SAR data

open access: yesJournal of Agrometeorology, 2019
The study aims to retrieve soil moisture from RISAT-1 hybrid polarimetric SAR data. Although the use of linear polarimetric SAR data has been well understood and documented, but hybrid polarimetric SAR data is grossly under explored and under reported ...
P.K. SHARMA   +4 more
doaj   +1 more source

Toward an Improved Understanding of the Antarctic Coastal Zone and Its Contribution to Future Global Sea Level

open access: yesReviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract Understanding the coastal zone of the Antarctic Ice Sheet (AIS), where it interacts with the Southern Ocean and warmer air masses, is crucial for predicting Antarctica's influence on the global climate and sea level. This region has multiple tipping mechanisms that could trigger large, rapid, and potentially irreversible changes in the AIS ...
Kenichi Matsuoka   +79 more
wiley   +1 more source

PolInSAR Coherence and Entropy‐Based Hybrid Decomposition Model

open access: yesEarth and Space Science, 2020
Target characterization is an essential aspect of polarimetric decomposition. This technique is capable of categorizing polarimetric signatures for different types of targets based on the scattering mechanisms they follow, enabling straightforward ...
Shahid Shuja Shafai, Shashi Kumar
doaj   +1 more source

Inside the Fire Plume Chemical Interactions: A Review on Key Processes and Future Directions

open access: yesReviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract Fire plumes are rising columns of heated air masses, consisting of gaseous and particulate matter generated by combustion, affecting air quality, climate and public health. The chemical species released undergo secondary reactions and participate in chemical and physical interactions, altering the properties of the fire plume.
E. Dovrou, A. Voulgarakis
wiley   +1 more source

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