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We study spectrally resolved dynamics of Forster energy transfer in single monolayers and bilayers of semiconductor nanocrystal quantum dots assembled using Langmuir-Blodgett (LB) techniques. For a single monolayer, we observe a…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Marc Achermann , Melissa A. Petruska , Scott A. Crooker , Victor I. Klimov

The ingredients normally required to achieve topological superconductivity (TSC) are Cooper pairing, broken inversion symmetry, and broken time-reversal symmetry. We present a theoretical exploration of the possibility of using ultra-thin…

Mesoscale and Nanoscale Physics · Physics 2018-12-05 Chao Lei , Hua Chen , Allan H. MacDonald

A simple, yet general, formalism for the optimized linear combination of astrophysical images is constructed and demonstrated. The formalism allows the user to combine multiple undersampled images to provide oversampled output at high…

Instrumentation and Methods for Astrophysics · Physics 2015-05-28 Barnaby Rowe , Christopher Hirata , Jason Rhodes

Confocal Brillouin microscopy enables high-resolution mechanical imaging but has low acquisition speed, partly due to its pixel-by-pixel mapping strategy. Line-scanning Brillouin microscopy (LSBM) significantly improves imaging speed by…

Optics · Physics 2026-04-21 Chenjun Shi , Jitao Zhang

Mid-infrared absorption spectroscopy is a well-established technique for non-destructive quantitative molecular analysis. Waveguide-integrated sensors provide a particularly compact solution operating with reduced sample volumes while…

We present an all-optical method to load 174Yb atoms into a single layer of an optical trap near the surface of a solid immersion lens which improves the numerical aperture of a microscope system. Atoms are transported to a region 20 um…

Quantum Gases · Physics 2012-12-18 M. Miranda , A. Nakamoto , Y. Okuyama , A. Noguchi , M. Ueda , M. Kozuma

Laser ablation in liquid (LAL) is important technique used for formation of nanoparticles (NP). The LAL processes cover logarithmically wide range of spatiotemporal scales and is not fully understood. The NP produced by LAL are rather…

Mesoscale and Nanoscale Physics · Physics 2018-11-30 V. A. Khokhlov , N. A. Inogamov , V. V. Zhakhovsky , Yu. V. Petrov

We explore the use of deep learning to localise galactic structures in low surface brightness (LSB) images. LSB imaging reveals many interesting structures, though these are frequently confused with galactic dust contamination, due to a…

Computer Vision and Pattern Recognition · Computer Science 2024-07-11 Felix Richards , Adeline Paiement , Xianghua Xie , Elisabeth Sola , Pierre-Alain Duc

We present a convolution approach for the generation of optical bottle beams that combines established techniques of holographic optical trapping with hollow intensity distributions in order to manipulate absorbing particles. The…

Optics · Physics 2012-03-20 Christina Alpmann , Michael Esseling , Patrick Rose , Cornelia Denz

Self-assembly is a phenomenon observed in nature at all scales where autonomous entities build complex structures, without external influences nor centralised master plan. Modelling such entities and programming correct interactions among…

Computational Complexity · Computer Science 2013-09-26 German Terrazas , Hector Zenil , Natalio Krasnogor

Microfluidic mixing is an important means for in-situ sample preparation and handling while Small Angle X-Ray Scattering (SAXS) is a proven tool for characterising (macro-)molecular structures. In combination those two techniques enable…

Melanin is a ubiquitous natural pigment that exhibits broadband absorption and high refractive index. Despite its widespread use in structural color production, how the absorbing material, melanin, affects the generated color is unknown.…

Thin films based on Layer-by-Layer (LbL) self assembled technique are useful for immobilization of DNA onto solid support. This communication reports the immobilization of DNA onto a solid support by electrostatic interaction with a…

Materials Science · Physics 2009-11-13 Syed Arshad Hussain , P. K. Paul , D. Dey , D. Bhattacharjee , S. Sinha

Spatial light modulators (SLMs) are central to numerous applications ranging from high-speed displays to adaptive optics, structured illumination microscopy, and holography. After decades of advances, SLM arrays based on liquid crystals can…

Optics · Physics 2019-10-23 Cheng Peng , Ryan Hamerly , Mohammad Soltani , Dirk Englund

Superconducting films of alpha-Ta are promising candidates for the fabrication of advanced superconducting qubits. However, alpha-Ta films suffer from many growth-induced structural inadequacies that negatively affect their performance. We…

Monolayer transition metal dichalcogenides (e.g., MoS2) exhibit exceptionally large optical nonlinearities for high-order nonlinear light generation (NLG), yet their inherent atomic thickness fundamentally limits light-matter interactions…

Retrosynthesis, the process of breaking down a target molecule into simpler precursors through a series of valid reactions, stands at the core of organic chemistry and drug development. Although recent machine learning (ML) research has…

Artificial Intelligence · Computer Science 2026-05-12 Haorui Wang , Jeff Guo , Lingkai Kong , Rampi Ramprasad , Philippe Schwaller , Yuanqi Du , Chao Zhang

The optical trapping techniques have been extensively used in physics, biophysics, micro-chemistry, and micro-mechanics to allow trapping and manipulation of materials ranging from particles, cells, biological substances, and polymers to…

Optics · Physics 2018-09-19 Seyedeh Hamideh Kazemi , Saeed Ghanbari , Mohammad Mahmoud

Localized polymerization in subwavelength volumes using two photon dyes has now become a well-established method for fabrication of subwavelength structures. Unfortunately, the two photon absorption dyes used in such process are not only…

Soft Condensed Matter · Physics 2016-09-09 Govind Ummethala , Arun Jaiswal , Raghvendra P Chaudhary , Suyog Hawal , Sumit Saxena , Shobha Shukla

Recently, Transformer-based methods have achieved impressive results in single image super-resolution (SISR). However, the lack of locality mechanism and high complexity limit their application in the field of super-resolution (SR). To…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Ling Zheng , Jinchen Zhu , Jinpeng Shi , Shizhuang Weng