Results 61 to 70 of about 524 (175)

Complex Structured Light Generation Using Printed Liquid Crystal Droplets

Advanced Optical Materials, Volume 13, Issue 33, November 25, 2025.
Inkjet‐printed liquid crystal droplets generate structured light beams with spatially varying polarization and phase. These include full Poincaré beam, vortex beam carrying orbital angular momentum, and beam with polarization singularities, offering a simple approach for compact structured light generation in optical manipulation, imaging, and ...
Xuke Qiu, Runchen Zhang, Yifei Ma, Zimo Zhao, Zipei Song, Alva C. J. Orr, Mengmeng Li, Waqas Kamal, Jinge Guo, Alfonso A. Castrejón‐pita, Steve J. Elston, Stephen M. Morris, Chao He   +12 more
wiley   +1 more source

Thermoplasmonic‐Controlled Optical Filters Based on the Combination of Chiral Liquid Crystals and Metasurfaces

Macromolecular Rapid Communications, Volume 46, Issue 21, November 6, 2025.
A broadband cholesteric liquid crystal (CLC) combined with a bottom‐up metasurface absorber enables the realisation of thermoplasmonic‐controlled optical filters. These filters combine a CLC reflector for visible light with a metasurface absorber operating in the near‐infrared (NIR) range.
Federica Zaccagnini, Francesca Petronella, Michael E. McConney, Jonathan Slagle, Kwang‐Un Jeong, Timothy J. Bunning, Luciano De Sio   +6 more
wiley   +1 more source

Pseudo‐Dichroism: Nanophotonic Induction of Chiroptical Activity in Symmetric Molecular Systems

Advanced Optical Materials, Volume 13, Issue 24, August 25, 2025.
By analyzing vibrational circular dichroism (VCD) spectra of chiral nanomaterials, we distinguish genuine molecular chirality (true dichroism) from measurement artifacts (pseudo dichroism) using a novel, robust framework. The spectral criteria we establish apply broadly to all chiroptical techniques in nanomaterial research, enhancing precision in ...
Victor Tabouillot, Jeremy Landry, Mario González‐Jiménez, Nikolaj Gadegaard, Christian Johannessen, Klaas Wynne, Ewan W. Blanch, Malcolm Kadodwala   +7 more
wiley   +1 more source

Reconstructing Three‐Dimensional Optical Anisotropy with Tomographic Müller‐Polarimetric Microscopy

Advanced Science, Volume 12, Issue 27, July 17, 2025.
Tomographic Müller polarimetric microscopy is a novel imaging technique that resolves 3D birefringent properties of bulky samples, unveiling hierarchical nanostructures at microscopic resolution. Based on incoherent visible‐light polarimetry, it achieves experimental simplicity by eliminating phase measurements.
Yang Chen, Arthur Baroni, Torne Tänzer, Leonard Nielsen, Marianne Liebi   +4 more
wiley   +1 more source

Stokes Spectropolarimetry Applied to Measure Circular Birefringence Dispersion of Aqueous Solutions of Sugars

Chirality, Volume 37, Issue 7, July 2025.
This work demonstrates the use of Stokes spectropolarimetry (SSP) to investigate optical rotatory dispersion (ORD), or circular birefringence (CB), of chiral sugar solutions. The results confirm the relationship between concentration and optical rotation, the dependence on wavelength, and the versatility of SSP to characterize optical anisotropies ...
Ruan Lucas Sousa Lima, Eric Santos da Silva, Paulo Trindade Araujo, Newton Martins Barbosa Neto   +3 more
wiley   +1 more source

Chirality in Transition Metal Dichalcogenide Nanostructures

Chemistry – A European Journal, Volume 31, Issue 35, June 23, 2025.
The emergence of chirality in inorganic nanostructures has a critical impact on the properties and potential applications of these novel nanomaterials. This work presents a critical collection of examples of the observation of chirality in TMDs, covering different synthetic procedures and origins of chirality as well as a broad range of dimensionality ...
Lorenzo Branzi, Joseph Martyn, Lucy Fitzsimmons, Yurii K. Gun'ko   +3 more
wiley   +1 more source

Quantifying Influence of Beam Drift on Linear Retardance Measurement in Dual-Rotating Retarder Mueller Matrix Polarimetry

Photonics
Mueller matrix polarimetry is recently attracting more and more attention for its diagnostic potentials. However, for prevalently used division of time Mueller matrix polarimeter based on dual-rotating retarder scheme, beam drift induced by rotating ...
Kaisha Deng, Nan Zeng, Liangyu Deng, Shaoxiong Liu, Hui Ma, Chao He, Honghui He   +6 more
doaj   +1 more source

Characterization of photonic structures using visible and infrared polarimetry

EPJ Web of Conferences, 2010
Photonic Crystals are materials with a spatial periodic variation of the refractive index on the wavelength scale. This confers these materials interesting photonic properties such as the existence of photonic bands and forbidden photon frequency ...
Kral Z., Olaizola S.M., Garcia-Caurel E., Ferré-Borrull J., Pallarès J., Marsal L.F.   +5 more
doaj   +1 more source

Leveraging Optical Anisotropy of the Morpho Butterfly Wing for Quantitative, Stain‐Free, and Contact‐Free Assessment of Biological Tissue Microstructures

Advanced Materials, Volume 37, Issue 12, March 26, 2025.
We leverage the intrinsic optical anisotropy of the Morpho butterfly wing to introduce Morpho‐Enhanced Polarized Light Microscopy (MorE‐PoL), a stain‐ and contact‐free imaging methodology that quantitatively assesses the microstructural properties of fibrous biological tissues.
Paula Kirya, Aida Mestre‐Farrera, Jing Yang, Lisa V. Poulikakos   +3 more
wiley   +1 more source

Classical entanglement in polarization metrology

New Journal of Physics, 2014
Quantum approaches relying on entangled photons have been recently proposed to increase the efficiency of optical measurements. We demonstrate here that, surprisingly, the use of classical light with entangled degrees of freedom can also bring ...
Falk Töppel, Andrea Aiello, Christoph Marquardt, Elisabeth Giacobino, Gerd Leuchs   +4 more
doaj   +1 more source