This study investigates the nonlinear optical (NLO) properties of a newly synthesized pyrimidine derivative, -(4-(4-fluorophenyl)-6-isopropyl-5-(methoxymethyl)pyrimidin-2-yl)--methylmethanesulfonamide (PMMS), with potential applications in advanced optical devices. The structure of PMMS was confirmed by single-crystal X-ray diffraction (SCXRD), and its geometry was optimized using density functional theory (DFT) at the B3LYP/6-311++G(d,p) level. Key intermolecular interactions were analyzed using Hirshfeld surface analysis and 2D-fingerprint plots. Nonlinear optical properties, such as polarizability and hyperpolarizability, were investigated using an iterative electrostatic embedding method, showing significant enhancement in NLO behavior in the crystalline environment. PMMS exhibited a third-order nonlinear susceptibility ( ) superior to known chalcone derivatives, highlighting its potential for optical and photonic applications. Additionally, molecular docking studies revealed the potential of PMMS as a strong acetylcholinesterase (AChE) inhibitor, suggesting its possible therapeutic applications in treating neurodegenerative diseases, such as Alzheimer's. This study provides foundational insights into the NLO properties and bioactivity of PMMS, positioning it as a promising material for future optical technologies and pharmaceutical developments.
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http://dx.doi.org/10.1039/d4ra05681g | DOI Listing |
Nat Commun
January 2025
Research Laboratory of Electronics, MIT, Cambridge, MA, USA.
Three-dimensional subcellular imaging is essential for biomedical research, but the diffraction limit of optical microscopy compromises axial resolution, hindering accurate three-dimensional structural analysis. This challenge is particularly pronounced in label-free imaging of thick, heterogeneous tissues, where assumptions about data distribution (e.g.
View Article and Find Full Text PDFLight Sci Appl
January 2025
Laboratoire Matériaux et Phénomènes Quantiques, Université Paris Cité and CNRS, Paris, 75013, France.
Vortex beams are currently drawing a great deal of interest, from fundamental research to several promising applications. While their generation in bulky optical devices limits their use in integrated complex systems, metasurfaces have recently proven successful in creating optical vortices, especially in the linear regime. In the nonlinear domain, of strategic importance for the future of classical and quantum information, to date orbital angular momentum has only been created in qualitative ways, without discussing discrepancies between design and experimental results.
View Article and Find Full Text PDFLight Sci Appl
January 2025
Spin-Optics laboratory, St. Petersburg State University, St. Petersburg, 198504, Russia.
We introduce a novel neuromorphic network architecture based on a lattice of exciton-polariton condensates, intricately interconnected and energized through nonresonant optical pumping. The network employs a binary framework, where each neuron, facilitated by the spatial coherence of pairwise coupled condensates, performs binary operations. This coherence, emerging from the ballistic propagation of polaritons, ensures efficient, network-wide communication.
View Article and Find Full Text PDFScience
January 2025
Department of Electrical, Computer and Energy Engineering, University of Colorado Boulder, Boulder, CO, USA.
Optical frequency combs have enabled unique advantages in broadband, high-resolution spectroscopy and precision interferometry. However, quantum mechanics ultimately limits the metrological precision achievable with laser frequency combs. Quantum squeezing has led to significant measurement improvements with continuous wave lasers, but experiments demonstrating metrological advantage with squeezed combs are less developed.
View Article and Find Full Text PDFHeliyon
January 2025
Department of Mechanical Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran.
Background: The development of heat transfer devices used for heat conversion and recovery in several industrial and residential applications has long focused on improving heat transfer between two parallel plates. Numerous articles have examined the relevance of enhancing thermal performance for the system's performance and economics. Heat transport is improved by increasing the Reynolds number as the turbulent effects grow.
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