Results 81 to 90 of about 2,794,441 (253)

Hollow-core photonic band gap fibers for particle acceleration

Physical Review Special Topics. Accelerators and Beams, 2011
Photonic band gap (PBG) dielectric fibers with hollow cores are being studied both theoretically and experimentally for use as laser driven accelerator structures. The hollow core functions as both a longitudinal waveguide for the transverse-magnetic (TM)
Robert J. Noble, James E. Spencer, Boris T. Kuhlmey   +2 more
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

Investigation of the Effects of Electron Density Distribution on the Photonic Band Gap of Two-Dimensional Inhomogeneous Plasma Photonic Crystals [PDF]

فیزیک کاربردی ایران
This research adopts a novel approach to theoretically investigate the design of a two-dimensional plasmonic photonic crystal composed of 5×9 arrays of square plasma blocks with an inhomogeneous electron density distribution.
Fahimeh Karami-Garehgeshlagi, Farzaneh Bayat   +1 more
doaj   +1 more source

A Nonlinear Organic Low‐Frequency Sound Sensor Based on Electrochemical Coupling in a Solidified Gel Membrane

Advanced Functional Materials, EarlyView.
A novel nonlinear infrasound sensor concept based on a free‐standing ion conductive gel membrane is introduced. Acoustic signals are directly transduced into an electrical signal using an internal application mechanisms (gating). The nonlinearity might be used for neuromorphic in‐sensor computing. ABSTRACT Measuring low‐frequency or infrasound acoustic
Maarten Mittmann, Carsten Habenicht, Andreas Hofacker, Richard Kantelberg, Stefan Jacob, Karl Leo, Hans Kleemann   +6 more
wiley   +1 more source

Anisotropy of the photonic Urbach tail

Physical Review Research
Disorder in photonic lattices creates localized states inside the photonic band gap. The energy distribution of these states is often described as a Lifshitz tail, even though it is inconsistent with Lifshitz statistics near the band edge.
M. Menéndez, Lan Hoang Mai, Nazifa Tasnim Arony, Henry Carfagno, Lauren N. McCabe, Joshua M. O. Zide, Cefe López, Matthew F. Doty, P. D. García   +8 more
doaj   +1 more source

Electromagnetic modelling of a monolithic pulse reshaper based on a photonic crystal waveguide integrated with a SOA [PDF]

, 2006
Finite difference time domain (FDTD) and finite element (FE) frequency domain methods are used to study the propagation of arbitrary chirped pulses in photonic crystal (PhC) waveguide.
M. Cryan, I. Craddock, T. Karle, T. Cao, Cao, T., I. Galbraith, Ivanov, P, Zhang, J-Z, Karle, TJ, Railton, C. J., Yu, S., J. Rorison, Cao, T, Rorison, JM, Zhang, J. Z., Ivanov, P. S., Karle, T. J., Cryan, MJ, Craddock, I. J., Cryan, M. J., C. Railton, S. Yu, J.-z. Zhang, Galbraith, I, Craddock, IJ, Galbraith, I., Rorison, J., Railton, CJ, P. Ivanov, Yu, S   +29 more
core   +1 more source

Scalable Fabrication of Thermally Reconfigurable Ge Metasurfaces Using Stencil Lithography for Mid‐Infrared Molecular Fingerprinting

Advanced Functional Materials, EarlyView.
Scalable stencil lithography enables resist‐free fabrication of high‐index Ge metasurfaces for mid‐infrared molecular fingerprinting. Reversible thermo‐optic tuning provides post‐fabrication spectral control for precise resonance–vibration mode alignment, enabling enhanced molecular fingerprinting of microplastic particles.
Shovasis Kumar Biswas, Samir Rosas, Wihan Adi, Aidana Beisenova, Vaishakh Unnikrishnan, Furkan Kuruoglu, Filiz Yesilkoy   +6 more
wiley   +1 more source

Micro-fluidic switchable photonic band-gap device

, 2004
We present a novel fabrication method for micro-photonic elements utilizing a transverse photonic band-gap fiber. We then tune the optical response of this device by the introduction of fluids into the micro-structure of the ...
B. J. Eggleton (3958007), H. C. Nguyen (3957905), M. Straub (19112860), Min Gu (18943897), P. Domachuk (3957992)   +4 more
core   +1 more source

Digitally Printed Eco‐Friendly Electronic Devices

Advanced Functional Materials, EarlyView.
Fabrication of electronics using eco‐friendly materials through digital printing routes is a promising strategy for improving life cycle sustainability and reducing the environmental impacts of conventional manufacturing. This review highlights state‐of‐the‐art eco‐friendly materials, green ink formulations, various resource‐efficient digital printing ...
Nitheesh M. Nair, Mikel Rincón‐Iglesias, Cristian Mendes‐Felipe, Fatemeh Etehadi, Senentxu Lanceros‐Méndez, Gerardo Hernandez‐Sosa   +5 more
wiley   +1 more source

Observation of Cartesian light propagation through a three-dimensional cavity superlattice in a silicon photonic band gap crystal

Physical Review Research
We experimentally investigate peculiar light propagation inside a three-dimensional (3D) superlattice of resonant cavities that are confined within a 3D photonic band gap.
Manashee Adhikary, Marek Kozoň, Ravitej Uppu, Willem L. Vos   +3 more
doaj   +1 more source