Results 61 to 70 of about 31,227 (304)

Experimental investigation on the effect of crystal birefringence on the performance of nanosecond-pulsed diamond Raman laser

Functional Diamond
The impact of crystal birefringence on the performance of diamond Raman lasers has been studied previously at power levels slightly above the threshold.
Yongpeng Yan, Xuezong Yang, Muye Li, Yuxiang Sun, Huawei Jiang, Shulong Zhang, Chengchun Zhao, Yin Hang, Yan Feng   +8 more
doaj   +1 more source

Polar Decomposition of Jones Matrix and Mueller Matrix of Coherent Rayleigh Backscattering in Single-Mode Fibers

Sensors
The Jones matrix and the Mueller matrix of the coherent Rayleigh backscattering (RB) in single-mode fibers (SMFs) have been derived recently. It has been shown that both matrices depict two polarization effects—birefringence and polarization-dependent ...
Hui Dong, Hailiang Zhang, Dora Juan Juan Hu   +2 more
doaj   +1 more source

Cosmological birefringence and the geometric phase of photons

Physics Letters B, 2019
Regarding axion electrodynamics in the background flat FRW universe, we show that cosmological birefringence arises from an adiabatic noncyclic geometric phase that appears in the quantum state of photons because of their interaction with the axion field.
Mansoureh Hoseini, Mohammad Mehrafarin
doaj   +1 more source

Thermally Activated Delayed Fluorescence in Phase‐Separated Nanostructures

Advanced Functional Materials, EarlyView.
A supramolecular, phase‐separation driven strategy yields charge transfer (CT) complexes from alternating electron‐deficient pyromellitic diimide and electron‐rich 4,5‐dibromoveratrole. The resulting CT complexes self‐assemble into lamellar nanosheets with nanometer‐sized domains that exhibit thermally activated delayed fluorescence (TADF) at room ...
Bart W.L. van den Bersselaar, Giovanni M. Beneventi, Philip M. Greißel, Lukas A. Mai, Stefan J. D. Maessen, Bas F.M. de Waal, E.W. Meijer, Dirk M. Guldi, Ghislaine Vantomme   +8 more
wiley   +1 more source

Analysis of the Transmission Characteristic and Stress-Induced Birefringence of Hollow-Core Circular Photonic Crystal Fiber

Crystals, 2019
Orbital angular momentum modes in optical fibers have polarization mode dispersion. The relationship between polarization mode dispersion and the birefringence vector can be deduced using an optical fiber dynamic equation. First, a mathematical model was
Jingxuan Yang, Hu Zhang, Xiaoguang Zhang, Hui Li, Lixia Xi   +4 more
doaj   +1 more source

Shape‐Changing Multiphase Microparticles from Complex Liquid Crystal Emulsions

Advanced Functional Materials, EarlyView.
Liquid crystalline network (LCN) microparticles are prepared from single, double (Janus), and triple emulsions through a simple and scalable bulk‐emulsification strategy. Under heating, the particles exhibit robust, reversible, large‐amplitude deformations that depend both on the morphology and the liquid crystals director field configuration.
Marco Turriani, Camilla Parmeggiani, Daniele Martella, Alberto Concellón   +3 more
wiley   +1 more source

Optical birefringence imaging of x-ray excited lithium tantalate

APL Photonics, 2017
X-ray absorption in lithium tantalate induces large, long-lived (∼10−5 s) optical birefringence, visualized via scanning optical polarimetry. Similar birefringence measured from glass, sapphire, and quartz was two orders of magnitude weaker; much of this
S. M. Durbin, A. Landcastle, A. DiChiara, Haidan Wen, D. Walko, B. Adams   +5 more
doaj   +1 more source

An In Situ Embedded B‐MOF Sponge With Shape‐Memory for All‐in‐One Diabetic Wound Therapy

Advanced Healthcare Materials, EarlyView.
A smart shape‐memory sponge dressing (P1A3@B‐MOF) is developed for accelerated diabetic wound healing. It achieves pH‐responsive corelease of Zn2+ and salvianolic acid B, synergistically providing antibacterial action, repolarizing macrophages to the M2 phenotype, and promoting angiogenesis.
Hai Zhou, Chaoyang Huang, Yanqi Chen, Tingzi Zhao, Fengyi Zhu, Gong Jun, Jinrong Zhang, Yingsong Pan, Qiulan Wen, Lei Yang, Huihui Zhang, Lianglong Chen   +11 more
wiley   +1 more source

Terahertz optical properties and birefringence in single crystal vanadium doped (100) β-Ga₂O₃

, 2022
Ajinkya Punjal, Shraddha Choudhary, Maneesha Narayanan, Dhanashree Chemate, Ruta Kulkarni, A. Thamizhavel, Arnab Bhattacharya, S. S. Prabhu   +7 more
openalex   +1 more source

The Space Within: How Architected Voids Promote Tissue Formation

Advanced Materials, EarlyView.
This review explores the role of void spaces in tissue engineering scaffolds and examines four key methods for introducing porosity into hydrogels at different scales. It discusses sacrificial templating, microgels, phase separation, and 3D printing, highlighting principles, advantages, and limitations. It also addresses emerging strategies integrating
Anna Puiggalí‐Jou, Isabel B. Hui, Carla Fernandez‐Rico, Marcy Zenobi‐Wong   +3 more
wiley   +1 more source