Results 181 to 190 of about 221,879 (297)

Analytical study of the numerical aperture of cone-shaped optical fibers: A tool for tailored designs. [PDF]

Heliyon, 2019
Patiño-Jurado B, Botero-Cadavid JF, Garcia-Sucerquia J.   +2 more
europepmc   +1 more source

Optofluidic Raman Analysis and Capacity Recovery in Li‐ion Cells

Advanced Materials Technologies, EarlyView.
Operando Raman spectroscopy is used to monitor the degradation of commercial Li‐ion cells. Using a microfluidic access port, small amounts of electrolyte are sampled into a hollow‐core optical fibre, where fibre‐enhanced Raman analysis reveals Li+ solvation changes and solvent evolution.
Ermanno Miele, Wesley M. Dose, Ian A. K. Davidson, Hesham Sakr, Natalie V. Wheeler, Francesco Poletti, Michael De Volder, Clare P. Grey, Jeremy J. Baumberg, Tijmen G. Euser   +9 more
wiley   +1 more source

Modeling subdiffusive light scattering by incorporating the tissue phase function and detector numerical aperture (Erratum). [PDF]

J Biomed Opt, 2019
Post A, Jacques S, Sterenborg HJC, Faber D, van Leeuwen T.   +4 more
europepmc   +1 more source

Enhanced Self‐Phase Modulation in Silicon Nitride Waveguides Integrated With 2D MoS2 Films

Advanced Materials Technologies, EarlyView.
ABSTRACT On‐chip integration of 2D materials provides a promising route toward next‐generation integrated optical devices with performance beyond existing limits. Here, significantly enhanced spectral broadening induced by self‐phase modulation (SPM) is experimentally demonstrated in silicon nitride (Si3N4) waveguides integrated with 2D monolayer ...
Shahaz S. Hameed, Di Jin, Aihao Zhao, Jiayang Wu, Junkai Hu, Irfan H. Abidi, Sebastien Cueff, Christian Grillet, Yuning Zhang, Houssein El Dirani, Corrado Sciancalepore, Sebastien Kerdiles, Quentin Wilmart, Sumeet Walia, Christelle Monat, David J. Moss   +15 more
wiley   +1 more source

Two‐Photon Polymerized Microvascular Environments for Multicellular Modeling of the Blood–Brain Tumor Barrier

Advanced Materials Technologies, EarlyView.
Modeling the blood–brain tumor barrier is challenging due to complex interactions between brain microvasculature and glioma cells. We present two‐photon polymerized 3D micro‐porous capillary‐like structures that support endothelial alignment, cytoskeletal organization, and pericyte‐endothelial‐glioma tri‐cultures.
Nastaran Barin, Sayba Z. Chowdhury, Maurice de Wit, Rania Head, Kiki Bals, Erwin Brosens, Marvin M. van Luijn, Hayri E. Balcioglu, Angelo Accardo, Pim J. French   +9 more
wiley   +1 more source

Large-scale high-numerical-aperture super-oscillatory lens fabricated by direct laser writing lithography. [PDF]

RSC Adv, 2018
Ni H, Yuan G, Sun L, Chang N, Zhang D, Chen R, Jiang L, Chen H, Gu Z, Zhao X.   +9 more
europepmc   +1 more source

Direct Laser Writing of Magnetic Micro Actuators With a Stimulus‐Responsive Compliant Hinge

Advanced Materials Technologies, EarlyView.
This study presents a versatile modular design strategy for adaptive 3D microactuators. Using two‐photon‐induced C,H insertion reactions within solid polymer layers, chemically distinct hinge and stimulus responsive materials are patterned in one step. The hinge's properties enable tunable motion, mechanical control, and reconfigurable actuation across
Eleonora Galli, Nicolas Geid, Yizheng Liu, Friederike Strahl, Jürgen Rühe   +4 more
wiley   +1 more source

Resolution-enhanced Fourier ptychographic microscopy based on high-numerical-aperture illuminations. [PDF]

Sci Rep, 2017
Sun J, Zuo C, Zhang L, Chen Q.
europepmc   +1 more source

Mapping of Physiological Signals From Wireless Battery‐Free Implants With Plane‐Wave Ultrasound Imaging

Advanced Materials Technologies, EarlyView.
Combined approach of electromagnetic (Power) and ultrasound (data harvesting) waves is proposed to address the miniaturized ultrasonic implants. Electromagnetic waves trigger the piezoelectric element to generate the acoustic pulse which is modulated by the variations in the sensor's impedance.
Anam Bhatti, Hugo Guillot, Ouafae Firdaouissi, Mohammed Irar, Lionel Rousseau, Clément Hébert, Maxime Lafond   +6 more
wiley   +1 more source

Characterizing the optical properties of human brain tissue with high numerical aperture optical coherence tomography. [PDF]

Biomed Opt Express, 2017
Wang H, Magnain C, Sakadžić S, Fischl B, Boas DA.   +4 more
europepmc   +1 more source