Results 31 to 40 of about 8,745 (262)

Drop‐on‐Demand Printed Negative Dielectric Anisotropy Liquid Crystal Droplets for Adaptive Complex Beam Manipulation and Assessment

Advanced Functional Materials, EarlyView.
Printed negative‐dielectric‐anisotropy liquid‐crystal droplets enable multidimensional full‐vectorial optical‐field sensing across polarization, phase, and wavelength, while also generating tunable skyrmionic‐like complex optical fields. ABSTRACT Adaptive manipulation of vectorial optical fields is important for optical metrology, imaging, and ...
Jinge Guo, Xuke Qiu, Runchen Zhang, Qihao Han, Liangyu Deng, Yishun Lu, Zimo Zhao, Mengmeng Li, Waqas Kamal, Junseok Ma, Yongge Ma, Steve J. Elston, Alfonso A. Castrejón‐Pita, Stephen M. Morris, Chao He   +14 more
wiley   +1 more source

Recent Progress in Distributed Brillouin Sensors Based on Few-Mode Optical Fibers

Sensors, 2021
Brillouin scattering is a dominant inelastic scattering observed in optical fibers, where the energy and momentum transfer between photons and acoustic phonons takes place.
Yong Hyun Kim, Kwang Yong Song
doaj   +1 more source

Exceptional Electro‐Optic Coefficient Unlocked via Polarization Swaying in KNbO3 Thin Films

Advanced Functional Materials, EarlyView.
We present the largest reported electro‐optic response in any material to date, guided by a new design principle that exploits ultralow coercive field polarization swaying enabled by low‐symmetry ferroelectric phases in monoclinic KNbO3 thin films for energy‐efficient classical and quantum photonic integrated circuits. ABSTRACT The electro‐optic effect
Sankalpa Hazra, Aiden Ross, Brynn Brower, Tobias Schwaigert, Ian Reed Philippi, Albert Suceava, Himirkanti Sarkar, Muhammed Aminul Haque Chowdhury, Suchismita Sarker, Darrell G. Schlom, Long‐Qing Chen, Venkatraman Gopalan   +11 more
wiley   +1 more source

Using polarimeter and Stokes parameters for measuring linear birefringence and diattenuation properties of optical samples

EPJ Web of Conferences, 2010
A technique is proposed for measuring the linear birefringence and linear diattenuation of an optical sample using a polarimeter. In the proposed approach, the principal axis angle (α), phase retardance (β), diattenuation axis angle (θd), and ...
Tsung-tse Y., Jing Fung L., Tsung-chih Y., Po-chun C., Yu Lung L.   +4 more
doaj   +1 more source

PEN fluorescent birefringence sensor in ethanol volatilization measurement [PDF]

EPJ Web of Conferences
Through the fluorescence characteristics of polyethylene naphthalate (PEN) material under short-wavelength excitation, a boradband light source of visible wavelengths can be generated.
Twu Ruey-Ching, Qiu Shu-Quan
doaj   +1 more source

Deformation‐Tolerant Functional Elastomer Overlayers for Haze‐Assisted Light Extraction and Color Conversion in Stretchable Mechanoluminescent Films

Advanced Functional Materials, EarlyView.
Functional elastomer overlayers are integrated onto stretchable ZnS:Cu‐PDMS mechanoluminescent films to regulate light after emission without modifying the emissive composite. NLC‐PU provides haze‐assisted light extraction to enhance green mechanoluminescence, while DCM‐NLC‐PU combines green‐to‐yellow‐orange color conversion with enhanced outward light
Gyudam Jeon, Seongkyu Song, Soon Moon Jeong, Na Young Ha   +3 more
wiley   +1 more source

Single‐Cell Resolution Mapping of Osteoarthritis‐Associated Chondrocyte Dynamics Using a High‐Density CMOS MEA Platform

Advanced Healthcare Materials, EarlyView.
Single‐cell and spatially resolved impedance mapping using a high‐density CMOS‐MEA platform enables non‐invasive monitoring of osteoarthritis‐associated chondrocyte dynamics. Continuous label‐free measurements reveal heterogeneous remodeling behaviors, including proliferation, migration, and phenotypic transitions, establishing a powerful approach for ...
Neha Deshpande, Pauline Coquart, Bram Theuns, Susanne Cremery, Jaime Rodolfo V. Garcia III, Julien Verplanken, Dennis Lambrechts, Dries Braeken, Liesbet Lagae, Johanna Bolander   +9 more
wiley   +1 more source

Spontaneous birefringence in boracites-measurements and applications

Ferroelectrics, 1978
The techniques and results of measurements of the spontaneous birefringence versus temperature are discussed for the fully ferroelectric/fully ferroelastic phases of Mg-Cl, Cr-Cl, Mn-Cl, Mn-Br, Mn-I, Fe-Cl, Fe-Br, Fe-I, Co-Cl, Co-Br. Co-I, Ni-Cl, Ni-Br, Cu-Cl, Cu-Br, Zn-Cl, Zn-Br, Zn-I, Cd-Cl, Cd-Br and Cd-I boracites.
Schmid, Hans, Tippmann, Heinz
openaire   +3 more sources

Highly sensitive self-calibrating birefringence measurement based on anisotropic laser feedback polarization effect

PhotoniX
Accurate measurements of dual parameters of phase retardance and retardance axis of birefringent materials are of fundamental importance to their fabrication and applications.
Shiwei Deng, Xunda Chang, Jiayu Wang, Yifan Wang, Xin Xu, Kewu Li, Yidong Tan, Guangwei Hu   +7 more
doaj   +1 more source

Snapshot Multi-Wavelength Birefringence Imaging

Sensors
A snapshot multi-wavelength birefringence imaging measurement method was proposed in this study. The RGB-LEDs at wavelengths 463 nm, 533 nm, and 629 nm were illuminated with circularly polarized light after passing through a circular polarizer.
Shuang Wang, Xie Han, Kewu Li
doaj   +1 more source