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We present an advanced scanning probe microscopy system enhanced with artificial intelligence (AI-SPM) designed for self-driving atomic-scale measurements. This system expertly identifies and manipulates atomic positions with high…

Computational Physics · Physics 2024-04-18 Zhuo Diao , Keiichi Ueda , Linfeng Hou , Fengxuan Li , Hayato Yamashita , Masayuki Abe

The next generation of Adaptive Optics (AO) systems on large telescopes will require immense computation performance and memory bandwidth, both of which are challenging with the technology available today. The objective of this work is to…

Instrumentation and Methods for Astrophysics · Physics 2018-08-03 Avinash Surendran , Mahesh P. Burse , A. N. Ramaprakash , Padmakar S. Parihar

Associated Particle Imaging (API) is a nuclear technique that allows for the nondestructive determination of 3D isotopic distributions. The technique is based on the detection of the alpha particles associated with the neutron emitted in…

Instrumentation and Detectors · Physics 2018-11-22 Mauricio Ayllon Unzueta , Will Mixter , Zachary Croft , John Joseph , Bernhard Ludewigt , Arun Persaud

The Simons Observatory (SO) is a next-generation ground-based telescope located in the Atacama Desert in Chile, designed to map the cosmic microwave background (CMB) with unprecedented precision. The observatory consists of three small…

In the low redshift Universe (z<0.3), our view of galaxy evolution is primarily based on fibre optic spectroscopy surveys. Elaborate methods have been developed to address aperture effects when fixed aperture sizes only probe the inner…

Waveplates having spatially varying fast-axis orientation and retardance provide an elegant and easy way to locally manipulate different attributes of light beams namely, polarization, amplitude and phase, leading to the generation of…

Optics · Physics 2021-02-03 Radhakrishna B , Gururaj Kadiri , Raghavan G

In a scanning transmission electron microscope (STEM), producing a high-resolution image generally requires an electron beam focused to the smallest point possible. However, the magnetic lenses used to focus the beam are unavoidably…

Seam cutting has shown significant effectiveness in the composition phase of image stitching, particularly for scenarios involving parallax. However, conventional implementations typically position seam-cutting as a downstream process…

Computer Vision and Pattern Recognition · Computer Science 2025-07-10 Tianli Liao , Chenyang Zhao , Lei Li , Heling Cao

Single-cell data integration can provide a comprehensive molecular view of cells, and many algorithms have been developed to remove unwanted technical or biological variations and integrate heterogeneous single-cell datasets. Despite their…

Quantitative Methods · Quantitative Biology 2024-03-04 Rong Ma , Eric D. Sun , David Donoho , James Zou

Sky-coverage in laser-assisted AO observations largely depends on the system's capability to guide on the faintest natural guide-stars possible. Here we give an up-to-date status of our natural guide-star processing tailored to the…

Instrumentation and Methods for Astrophysics · Physics 2016-11-23 Carlos M. Correia , Benoit Neichel , Jean-Marc Conan , Cyril Petit , Jean-Francois Sauvage , Thierry Fusco , Joel D. R. Vernet , Niranjan Thatte

HARMONI is a visible and NIR integral field spectrograph, providing the E-ELT's core spectroscopic capability at first light. HARMONI will work at the diffraction limit of the E-ELT, thanks to a Classical and a Laser Tomographic AO system.…

The Murchison Widefield Array is a low-frequency Square Kilometre Array precursor located at the Murchison Radio-astronomy Observatory in Western Australia. Primarily designed as an imaging telescope, but with a flexible signal path, the…

Instrumentation and Methods for Astrophysics · Physics 2019-08-15 S. M. Ord , S. E. Tremblay , S. J. McSweeney , N. D. R. Bhat , C. Sobey , D. A. Mitchell , P. J. Hancock , F. Kirsten

By integrating a phase-only Spatial Light Modulator (SLM) into the illumination arm of a cylindrical-lens-based Selective Plane Illumination Microscope (SPIM), we have created a versatile system able to deliver high quality images by…

Biological Physics · Physics 2018-08-10 Chiara Garbellotto , Jonathan M. Taylor

Patterned self-assembly is a process whereby coloured tiles self-assemble to build a rectangular coloured pattern. We propose self-assembly (SA) hypergraph automata as an automata-theoretic model for patterned self-assembly. We investigate…

Discrete Mathematics · Computer Science 2013-02-13 Lila Kari , Steffen Kopecki , Amirhossein Simjour

The Atacama Millimeter/submillimeter Array (ALMA) Phasing Project (APP) has developed and deployed the hardware and software necessary to coherently sum the signals of individual ALMA antennas and record the aggregate sum in Very Long…

Synthetic aperture imaging has enabled breakthrough observations from radar to astronomy. However, optical implementation remains challenging due to stringent wavefield synchronization requirements among multiple receivers. Here we present…

GUI grounding is a critical capability for enabling GUI agents to execute tasks such as clicking and dragging. However, in complex scenarios like the ScreenSpot-Pro benchmark, existing models often suffer from suboptimal performance.…

Computer Vision and Pattern Recognition · Computer Science 2026-05-08 Borui Zhang , Bo Zhang , Bo Wang , Wenzhao Zheng , Yuhao Cheng , Liang Tang , Yiqiang Yan , Jie Zhou , Jiwen Lu

With the launch and application of next-generation ground- and space-based telescopes, astronomy has entered the era of big data, necessitating more efficient and robust data analysis methods. Most traditional parameter estimation methods…

Astrophysics of Galaxies · Physics 2026-02-18 Zihao Wang , Tao Wang , Ke Xu , Hanwen Sun , Ruining Tian , Qi Hao

A prototype of a low cost Adaptive Optics (AO) system has been developed at the Instituto de Astrofisica de Andalucia (CSIC) and tested at the 2.2m telescope of the Calar Alto observatory. We present here the status of the project, which…

Instrumentation and Methods for Astrophysics · Physics 2015-05-19 J. Aceituno , S. F. Sanchez , J. L. Ortiz , F. J. Aceituno

Sparse Aperture Masking (SAM) allows for high-contrast imaging at small inner working angles, however the performance is limited by the small throughput and the number of baselines. We present the concept and first lab results of…

Instrumentation and Methods for Astrophysics · Physics 2018-08-03 David S. Doelman , Peter Tuthill , Barnaby Norris , Michael J. Wilby , Emiel H. Por , Christoph U. Keller , Michael J. Escuti , Frans Snik