Results 31 to 40 of about 202,400 (253)
Advanced Materials Technologies, EarlyView.Hybrid‐filled voxel AM enables integration of high‐permittivity materials into additively manufactured devices. Using this approach, a graded refractive index (GRIN) lens is demonstrated, achieving a 50% antenna size reduction with enhanced directivity.
Qianfang Zheng +4 more
wiley +1 more source
Advanced Materials Technologies, EarlyView.Neutral‐pH electropolymerization of aniline on laser‐induced graphene (LIG) produces stable, brush‐like polyaniline coatings without requiring acidic conditions. The resulting PANI–LIG electrodes exhibit enhanced electroactive surface area, efficient charge transfer, and dual sensing capability for β‐blockers and pH, providing a scalable platform ...
Angelika Łepek +6 more
wiley +1 more source
Telecommunications infrastructure and economic growth: Evidence from developing countries. [PDF]
Often, it has been observed that telecommunication infrastructure development and economic growth proceed together. While this relationship has been studied in the context of developed (OECD) countries, in this study, we investigate this simultaneous ...
Sridhar, Kala Seetharam +1 more
core
Waveguide-based OPO source of entangled photon pairs
, 2009 In this paper we present a compact source of narrow-band energy-time entangled photon pairs in the telecom regime based on a Ti-indiffused Periodically Poled Lithium Niobate (PPLN) waveguide resonator, i.e.
Abu Thomas +9 more
core +2 more sources
Advanced Materials Technologies, EarlyView.Soft multimaterial optical fibers integrate multiple functionalities—such as waveguiding, side emission, sensing, drug delivery or actuation—into a single filament for wearable, implantable, and tissue‐integrated devices for diagnostics and phototherapy.
Zahra Kafrashian +2 more
wiley +1 more source
Spectral noise in quantum frequency down-conversion from the visible to the telecommunication C-band
, 2019 We report a detailed study of the noise properties of a visible-to-telecom photon frequency converter based on difference frequency generation (DFG). The device converts 580 nm photons to 1541 nm using a strong pump laser at 930 nm, in a periodically ...
Afzelius, Mikael +3 more
core +2 more sources
Respiratory Signal Processing and Analysis Using Flexible Capacitive Sensor Data
Advanced Materials Technologies, EarlyView.Capacitive pressure sensors based on poly(glycerol sebacate) (PGS) substrates are developed for continuous, non‐invasive respiratory monitoring. Integrated with a signal processing algorithm, they enable accurate tracking of thoracic expansion and retraction.
Bernardo A. Vicente +3 more
wiley +1 more source
Telecom Italia: Italy's high tech old-style telecoms incumbent. [PDF]
The Telecoms Boom and Bust 1996 to 2002 has had a significant impact on the structure of the Telecommunications Industry. During the boom it seemed as if new entrant telecoms operators, entering on the back of new technologies, might even replace the ...
Martin Fransman
core
Bulk Negative Index Photonic Metamaterials for Direct Laser Writing
, 2008 We show the designs of one- and two-dimensional photonic negative index metamaterials around telecom wavelengths. Designed bulk structures are inherently connected, which render their fabrication feasible by direct laser writing and chemical vapor ...
Costas M. Soukoulis +13 more
core +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 +15 more
wiley +1 more source