Related Experiment Video
Updated: Jun 18, 2026

Super-Resolution Imaging and Shared Management: A Protocol for Confocal Microscopy with Multiplex Detection
Published on: February 24, 2026
Improved differential confocal microscopy with ultrahigh signal-to-noise ratio and reflectance disturbance
1Ultra-Precision Optoelectronic Instrument Engineering Institute, Harbin Institute of Technology, No. 92, West Da-Zhi Street, Harbin 150001, Heilongjiang, China. liujian@hit.edu.cn
Abstract:
Improved differential confocal microscopy is proposed to improve axial resolution and to enhance disturbance resistibility of confocal microscopy. The subtraction and sum values of the two defocusing detected signals are divided as the response function. Both ultrahigh signal-to-noise ratio (SNR) and wide range can be selectively obtained by controlling the defocusing amount of the two differential detectors more tightly with the reflectance disturbance resistibility. Since the detecting sensitivity of the proposed confocal microscopy is unrelated to the energy loss of the reflected beam, the multiplicative mode disturbance can be used to measure microstructures made of hybrid materials and overcome the power drift of a laser source during long scanning. In the case of ultrahigh SNR, the axial resolution reaches 1 nm when NA=0.75 and lambda=632.8 nm.
More Related Videos
10:41Confocal and Super-Resolution Imaging of Polarized Intracellular Trafficking and Secretion of Basement Membrane Proteins During Drosophila Oogenesis
Published on: May 19, 2022
14:09High-Throughput Total Internal Reflection Fluorescence and Direct Stochastic Optical Reconstruction Microscopy Using a Photonic Chip
Published on: November 16, 2019
Related Concept Videos
Super-resolution Fluorescence Microscopy
Confocal Fluorescence Microscopy
Phase Contrast and Differential Interference Contrast Microscopy
In-phase-contrast microscopes, interference between light directly passing through a cell and light refracted by cellular components is used to create high-contrast, high-resolution images without staining. It is the oldest and simplest type of microscope that creates an image by altering the wavelengths of light rays passing through the specimen. Altered wavelength paths are created using an annular stop in the condenser. The annular stop produces a hollow cone of...
Three-Dimensional Microscopy in Microbiology