Research Article
Advancements in Molecular and Cluster Physics: Challenges and Innovations
Diriba Gonfa Tolasa*
Issue:
Volume 9, Issue 1, June 2025
Pages:
1-10
Received:
19 February 2025
Accepted:
14 March 2025
Published:
10 April 2025
Abstract: Molecular and cluster physics is an interdisciplinary field that explores the properties and interactions of small groups of atoms and molecules, providing critical insights into the behavior of matter at the Nano scale. Recent advancements in experimental techniques, theoretical models, and computational methods have significantly enhanced our understanding of molecular dynamics and cluster formation. This paper reviews these innovations, highlighting key developments in spectroscopy, microscopy, and mass spectrometry that have revolutionized the characterization of molecular systems. Techniques such as Cryogenic Electron Microscopy (Cryo-EM) have enabled researchers to visualize molecular clusters with unprecedented resolution, while advanced mass spectrometry methods facilitate the precise analysis of cluster composition and stability. In parallel, theoretical models have evolved, with Density Functional Theory (DFT) and machine learning algorithms playing pivotal roles in predicting molecular interactions and optimizing cluster configurations. These advancements have not only improved our ability to model complex systems but have also opened new avenues for exploring the fundamental principles governing molecular behavior. Despite these significant strides, the field still faces numerous challenges. The complexity of molecular interactions, particularly in larger clusters, complicates accurate modeling and prediction. Experimental limitations, such as resolution and sensitivity constraints, can hinder the study of transient or unstable molecular assemblies. Moreover, the rapid increase in data generated by advanced techniques necessitates robust data management strategies to ensure effective analysis and interpretation. Innovations stemming from molecular and cluster physics have far-reaching implications across various domains, including material science and medicine. For instance, understanding the cluster dynamics can lead to the development of novel materials with tailored properties, such as advanced catalysts and nanomaterial’s. In medicine, insights gained from molecular interactions can enhance drug design and delivery mechanisms, ultimately improving therapeutic outcomes. Looking ahead, the future of molecular and cluster physics will depend on the integration of experimental and computational approaches, the development of new techniques, and interdisciplinary collaboration. By addressing the challenges and embracing innovative methodologies, researchers can continue to advance the field and contribute to a deeper understanding of complex molecular systems. This paper aims to encapsulate the current state of research in molecular and cluster physics, emphasizing both achievements and the path forward for future studies.
Abstract: Molecular and cluster physics is an interdisciplinary field that explores the properties and interactions of small groups of atoms and molecules, providing critical insights into the behavior of matter at the Nano scale. Recent advancements in experimental techniques, theoretical models, and computational methods have significantly enhanced our und...
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Research Article
Geometric Influence on Optical Bistability and Local Field Enhancement in Core-Shell Nanocomposites
Shewa Getachew Mamo*,
Eyasu Tadese Muda
Issue:
Volume 9, Issue 1, June 2025
Pages:
11-19
Received:
30 May 2025
Accepted:
25 June 2025
Published:
25 September 2025
Abstract: This work investigates the role of geometric shape in tuning the optical bistability (OB) and local field enhancement factor (LFEF) of metal-coated dielectric core-shell (CS) nanoinclusions embedded in nonlinear dielectric host matrices. Through quasi-static analysis and Drude-based modeling, the study reveals that spherical and cylindrical nanoinclusions exhibit distinct OB thresholds and LFEF behaviors depending on their radii, dielectric environments, and shape-induced plasmonic resonances. Spherical CS nanostructures display stronger OB responses and field confinement at lower thresholds than their cylindrical counterparts. Results show that increasing host permittivity significantly widens the OB region, while reducing nanoinclusion size enhances optical nonlinearity. This investigation underscores the sensitivity of nonlinear optical responses to geometry, shell thickness, and host environment, providing valuable insights for designing tunable photonic components, including switches and optical memory devices.
Abstract: This work investigates the role of geometric shape in tuning the optical bistability (OB) and local field enhancement factor (LFEF) of metal-coated dielectric core-shell (CS) nanoinclusions embedded in nonlinear dielectric host matrices. Through quasi-static analysis and Drude-based modeling, the study reveals that spherical and cylindrical nanoinc...
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