Results 171 to 180 of about 1,429,207 (385)
Advanced Optical Materials, EarlyView.Theoretical lessons are key for molecules presenting an inverted singlet‐triplet excited state (e.g. S1 and T1) energy difference. This perspective provides a snapshot of the role played by calculations in last years, not only to anticipate experimental findings but also for driving high‐throughput virtual screenings, as well as the main challenge to ...
Ángel José Pérez‐Jiménez +2 more
wiley +1 more source
Emerging Ta4C3 and Mo2Ti2C3 MXene Nanosheets for Ultrafast Photonics
Advanced Optical Materials, EarlyView.The present study reports on the ultrafast nonlinear optical (NLO) response and carrier dynamics of two kinds of MXenes, namely Ta4C3Tx and ordered‐phase Mo2Ti2C3Tx. The Mo2Ti2C3Tx MXene is found to exhibit superior NLO response, surpassing all previously studied MXenes and other 2D nanomaterials.
Michalis Stavrou +6 more
wiley +1 more source
Bright and Stable Electrochemiluminescence by Heterobimetallic IrIII‐MI (MI = CuI, AuI) Complexes
Advanced Optical Materials, EarlyView.Bright and stable electrochemiluminescence (ECL) of a new class of heterobimetallic ionic transition metal complexes is triggered in the presence of the coreactant n‐tri propylamine (TPrA) upon highly energetic electron transfer (eT). A quantum efficiency (ΦECL) up to six‐fold higher than that of benchmark tris‐(2,2′‐bipyridyl) ruthenium(II) is ...
Mattia Reato +9 more
wiley +1 more source
Privacy-Preserving for Images in Satellite Communications: A Comprehensive Review of Chaos-Based Encryption [PDF]
arXivIn an era where global connectivity has become critical, satellite communication is essential for businesses, governments, and individuals. Widely used services with satellite communication such as climate change monitoring, military surveillance and real-time event broadcasting, involve data in the form of images rather text. Therefore, securing image
arxiv
Colossal Terahertz Emission with Ultrafast Tunability Based on Van der Waals Ferroelectric NbOI2
Advanced Optical Materials, EarlyView.The widespread THz applications are hindered by the scarcity of efficient ultrafast THz sources with on‐demand fast modulation and easy on‐chip integration capability. Here the discovery of colossal THz emission is reported from a van der Waals (vdW) ferroelectric semiconductor NbOI2 and demonstrates the ultrafast coherent control of the THz emission ...
Sujan Subedi +8 more
wiley +1 more source
Upcoming communications satellites
Eos, Transactions American Geophysical Union, 1981 A new series of international and business communications satellites will be launched by ‘workhorse’ rocket systems, including updated Delta and Atlas/Centaur rockets, over the next few years. There is, of course, a ‘long‐shot’ option that the space shuttle, as originally conceived, will be used to place the satellites in orbit, but no one is willing ...
openaire +2 more sources
Thermal Dynamics Induced by Surface Acoustic Waves in Lanthanide‐Doped Core@Multishell Nanoparticles
Advanced Optical Materials, EarlyView.Accurate local temperature readout in integrated nanoscaled devices driven by high‐frequency surface acoustic waves (SAWs) has a strong technological interest. This image illustrates how lanthanide‐doped core@multishell nanoparticles can be employed as local temperature probes in SAW applications.
Pablo B. Pinto +5 more
wiley +1 more source
Advanced Optical Materials, EarlyView.Photochromic compounds are versatile ingredients for the development of Chemical AI. When they are embedded in a tight microenvironment, they become Markov blankets. They are also valuable for processing Boolean and Fuzzy logic. They contribute to neuromorphic engineering in wetware based on opto‐chemical signals exchanged with oscillatory chemical ...
Pier Luigi Gentili
wiley +1 more source