Results 141 to 150 of about 8,678 (295)

Efficient First‐Principles Inverse Design of Nanolasers

Laser &Photonics Reviews, EarlyView.
This article introduces a first‐principles inverse‐design framework for nanolasers that directly incorporates nonlinear lasing physics. By unifying steady‐state ab‐initio laser theory (SALT) with topology optimization, it reveals how spatial hole burning, gain saturation, and cavity‐emitter coupling shape laser performance, enabling efficient discovery
Beñat Martinez de Aguirre Jokisch, Alexander Cerjan, Rasmus Ellebæk Christiansen, Jesper Mørk, Ole Sigmund, Steven G. Johnson   +5 more
wiley   +1 more source

Global Ionospheric Scintillation Estimation Based on Phase Screen Modeling From One‐Dimensional Satellite Data

Space Weather
Ionospheric scintillations, which usually manifest as sudden, rapid fluctuations in radio wave signal phase and amplitude, challenge the reliability of satellite communication and navigation.
Yuhao Zheng, Chao Xiong, Luca Spogli, Rayan Iman, Lucilla Alfonsi   +4 more
doaj   +1 more source

Advances and Current Progress of Dopant Engineering on All‐Inorganic Halide Perovskites Toward High‐Performance Scintillating Materials

MetalMat, EarlyView.
This review provides the latest advancement on lead‐free all‐inorganic perovskites, covering fundamental aspects, emerging synthetic routes, and scintillation properties. We highlight the dopant engineering strategy to favor the formation and efficient radiative recombination of self‐trapped excitons and the future development direction for the next ...
Galfin Anderias Adu, Viona Maria Djojo, Livia Janice Widiapradja, Noor Nisa Fayyaza, Lina Jaya Diguna, Muhammad Danang Birowosuto, Arramel Arramel   +6 more
wiley   +1 more source

Evidence for a continuous, power law, electron density irregularity spectrum [PDF]

The spectral form of the irregularities in electron density that cause interplanetary scintillation (IPS) of small angular diameter radio sources is discussed.
Cronyn, W. M.
core   +1 more source

Quantification of Homopolymer Impurities in Structured Acrylate Copolymers Produced by High‐Temperature Semi‐Batch Radical Polymerization

Macromolecular Reaction Engineering, EarlyView.
Isobornyl acrylate macromonomer solutions are synthesized via high‐temperature radical polymerization using a starved‐feed semi‐batch operating policy. Through sequential feeding, the macromonomer solution functions as an addition‐fragmentation agent, facilitating the production of blocky and comb acrylate copolymers.
Elizabeth G. Bygott, Amaris J. Wilkins, Daniel C. Kraiter, Robin A. Hutchinson   +3 more
wiley   +1 more source

Fabrication of amorphous lamellar freestanding poly(N‐dodecyl acrylamide) films and their mechanical properties

Polymer International, EarlyView.
A freestanding film of completely uniaxially oriented amorphous lamellae was produced. The film exhibited enhanced tensile strength with increasing orientation of the lamella. Abstract An amorphous lamellar freestanding film composed of poly(N‐dodecyl acrylamide) (pDDA) was prepared by annealing a micrometer‐thick film under humid conditions (humid ...
Yuki Koizumi, Yoshimasa Matsuo, Akito Masuhara, Hinako Ebe, Yuya Ishizaki‐Betchaku, Shusaku Nagano, Jun Matsui   +6 more
wiley   +1 more source

A compendium of millimeter wave propagation studies performed by NASA [PDF]

Key millimeter wave propagation experiments and analytical results were summarized. The experiments were performed with the Ats-5, Ats-6 and Comstar satellites, radars, radiometers and rain gage networks.
Bremer, J., Kaul, R., Rogers, D.
core   +1 more source

Robust β‐myrcene block copolymer elastomeric vitrimers

Polymer International, EarlyView.
Myrcene‐based vitrimeric elastomers were compared: statistical (poly(styrene‐stat‐myrcene‐stat‐AAEMA)] versus ‘hard–soft’ diblock (poly(styrene)‐block‐poly(myrcene‐co‐AAEMA)). The diblock's ability to anchor the glassy poly(styrene) blocks in a self‐assembled microstructure was effective – leading to four times higher tensile stress and ten times ...
Chong Yang Du, Farhad Asempour, Milan Marić   +2 more
wiley   +1 more source

Plasma structuring within an expanded polar cap and cusp studied with the SS-520-3 sounding rocket. [PDF]

Earth Planets Space
Buschmann LM, Asamura K, Clausen LBN, Jin Y, Kojima H, Kumamoto A, Kurita S, Ogawa Y, Oksavik K, Saito Y, Spicher A, Yokota S, Miloch WJ.   +12 more
europepmc   +2 more sources

Ocean-Surface Wave Measurements Using Scintillation Theories on Seaborne Software-Defined GPS and SBAS Reflectometry Observations. [PDF]

Sensors (Basel), 2023
Tsai LC, Chien H, Su SY, Liu CH, Schuh H, Alizadeh MM, Wickert J.   +6 more
europepmc   +1 more source