The resolution of conventional optical elements and systems has long been perceived to
satisfy the classic Rayleigh criterion. Paramount efforts have been made to develop different …

Super-resolution optical microscopy, which gives access to finer details of objects, is highly
desired for fields of nanomaterial, nanobiology, nanophotonics, etc. Many efforts, including …

A novel method is proposed for generating sharper fluorescent super-resolution spot by
azimuthally polarized beam in stimulated emission depletion (STED) microscopy. The …

Fluorescence microscopy has long been a valuable tool for biological and medical imaging.
Control of optical parameters such as the amplitude, phase, polarization, and propagation …

Stimulated emission depletion (STED) fluorescence microscopy squeezes an excited spot
well below the wavelength scale using a doughnut-shaped depletion beam. To generate a …

A three-dimensional (3D) hollow spot is of great interest for a wide variety of applications
such as microscopy, lithography, data storage, optical manipulation, and optical …

A wide variety of practical applications utilize three-dimensional (3D) hollow spots. To
improve their performance, it is critical to independently control the transverse and …

Stimulated emission depletion (STED) is a very important technique in super-resolution
microscopy. Until now, while autofocusing Airy beam (AAB) has been an attractive theme for …

摘要由于光学元件的衍射效应, 常规光学显微术的分辨率被限制在半波长左右,
无法满足对于亚百纳米尺度的样品进行探测的需求. 受激发射损耗显微术(STED) …

We propose a non-iterative wavefront phase computation method, the crescent
segmentation phase (CSP) method that generates 3D multifocal spots with flexible control …