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High-precision measurements implemented by means of light is desired in all fields of science. However, light is a wave and Rayleigh criterion gives us a diffraction limitation in classical optics which restricts to get arbitrary high…

量子物理 · 物理学 2015-01-26 Ruifeng Liu , Pei Zhang , Yu Zhou , Hong Gao , Fuli Li

Second harmonic generation (SHG) microscopy is a valuable tool for optical microscopy. SHG microscopy is normally performed as a point scanning imaging method, which lacks phase information and is limited in spatial resolution by the…

High-spatial-resolution secondary ion mass spectrometry offers a method for mapping lithium at nanoscale lateral resolution. Practical implementation of this technique offers significant potential for revealing the distribution of Li in…

材料科学 · 物理学 2021-03-01 Xu Xu , Chengge Jiao , Kexue Li , Min Hao , Katie. L. Moore , Timothy. L. Burnett , Xiaorong Zhou

Circular dichroism spectroscopy is an essential technique for understanding molecular structure and magnetic materials, but spatial resolution is limited by the wavelength of light, and sensitivity sufficient for single-molecule…

This paper presents a comprehensive numerical analysis of super-resolution imaging using dielectric microparticles, employing the Finite-Difference Time-Domain (FDTD) method to elucidate the mechanisms that enable resolution enhancements…

光学 · 物理学 2024-09-18 Arlen Bekirov , Zengbo Wang , Boris Lukyanchuk

A Computationally Assisted Spectroscopic Technique to measure secondary electron emission coefficients ($\gamma$-CAST) in capacitively-coupled radio-frequency plasmas is proposed. This non-intrusive, sensitive diagnostic is based on a…

等离子体物理 · 物理学 2016-06-22 M. Daksha , B. Berger , E. Schuengel , I. Korolov , A. Derzsi , M. Koepke , Z. Donko , J. Schulze

Device architectures and dimensions are now at an unimaginable level not thought possible even 10 years ago. The continued downscaling, following the so-called Moore's law, has motivated the development and use of extreme ultraviolet (EUV)…

Mid-infrared (MIR) spectroscopy is a powerful technique employed for a variety of applications, including gas sensing, industrial inspection, astronomy, surveillance, and imaging. Thin-film narrowband interference filters, targeted to…

Low voltage transmission electron microscopy (<=80 kV) has many applications in imaging beam-sensitive samples, such as metallic nanoparticles, which may become damaged at higher voltages. To improve resolution, spherical aberration can be…

仪器与探测器 · 物理学 2022-07-27 Frances Quigley , Patrick McBean , Peter O'Donovan , Jonathan J. P. Peters , Lewys Jones

Transverse electron focusing in two-dimensional electron gases (2DEGs) with strong spin-orbit coupling is revisited. The transverse focusing is related to the transmission between two contacts at the edge of a 2DEG when a perpendicular…

介观与纳米尺度物理 · 物理学 2015-06-25 Andres A. Reynoso , Gonzalo Usaj , C. A. Balseiro

In this article, we demonstrate the viability of highly monochromatic full-field X-ray absorption near edge structure based tomography using a laboratory-scale Johann-type X-ray absorption spectrometer based on a conventional X-ray tube…

仪器与探测器 · 物理学 2022-10-04 Ari-Pekka Honkanen , Simo Huotari

Treatments of the usage of optical diffraction radiation from the relativistic electrons moving though a conductive slit for the noninvasive transverse beam size measurement encounter hard limitation of the method sensitivity for the…

高能物理 - 实验 · 物理学 2007-05-23 G. Naumenko

Super-resolution microscopy has revolutionized the fields of chemistry and biology by resolving features at the molecular level. Such techniques can be either "stochastic," gaining resolution through precise localization of point source…

量子气体 · 物理学 2019-04-09 Mickey McDonald , Jonathan Trisnadi , Kai-Xuan Yao , Cheng Chin

Metagratings have been shown to form an agile and efficient platform for extreme wavefront manipulation, going beyond the limitations of gradient metasurfaces. Previous approaches for transmissive metagratings have resorted on compound…

The scanning electron microscopy (SEM) is probably one the most fascinating examination approach that has been used since more than two decades to detailed inspection of micro scale objects. Most of the scanning electron microscopes could…

计算机视觉与模式识别 · 计算机科学 2016-02-18 Wichai Shanklin

Scientific CCDs designed in thick high resistivity silicon (Si) are excellent detectors for astronomy, high energy and nuclear physics, and instrumentation. Many applications can benefit from CCDs ultra low noise readout systems. The…

天体物理仪器与方法 · 物理学 2011-07-06 Gustavo Cancelo , Juan Estrada , Guillermo Fernandez Moroni , Ken Treptow , Ted Zmuda , Tom Diehl

We report the optical imaging of a single atom with nanometer resolution using an adaptive optical alignment technique that is applicable to general optical microscopy. By decomposing the image of a single laser-cooled atom, we identify and…

原子物理 · 物理学 2016-09-21 J. D. Wong-Campos , K. G. Johnson , B. Neyenhuis , J. Mizrahi , C. Monroe

The (secondary) electron emission from multilayered Al$_2$O$_3$/TiN membranes has been investigated with a hemispherical collector system in a scanning electron microscope for electrons with energies between 0.3 and 10 keV. These ultra-thin…

仪器与探测器 · 物理学 2021-08-11 H. W. Chan , V. Prodanović , A. M. M. G. Theulings , C. W. Hagen , P. M. Sarro , H. v. d Graaf

This paper develops a resolution enhancement method for post-processing the images from Atomic Force Microscopy (AFM). This method is based on deep learning neural networks in the AFM topography measurements. In this study, a very deep…

数据分析、统计与概率 · 物理学 2018-09-12 Y. Liu , Q. M. Sun , Dr. W. H. Lu , Dr. H. L. Wang , Y. Sun , Z. T. Wang , X. Lu , Prof. K. Y. Zeng

Integrating nanoscale opto-electronic functions is vital for applications such as optical emitters, detectors, and quantum information. Lanthanide atoms show great potential in this endeavor due to their intrinsic transitions. Here, we…

应用物理 · 物理学 2024-01-02 Eric Duverger , Damien Riedel
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