Resolution enhancement of imaging systems by quantum phase amplification

2011 ◽  
Author(s):  
Y. C. Yin ◽  
D. French ◽  
I. Jovanovic
Keyword(s):  
Resolution Enhancement ◽  
Quantum Phase ◽  
Imaging Systems

Resolution enhancement in coherent imaging systems using a deep neural network

2020 ◽  
Author(s):  
Tairan Liu ◽  
Kevin d. Haan ◽  
Yair Rivenson ◽  
Zhensong Wei ◽  
Xin Zeng ◽  
...  
Keyword(s):  
Neural Network ◽  
Deep Neural Network ◽  
Resolution Enhancement ◽  
Imaging Systems ◽  
Coherent Imaging

A Nano-Gap Nano-Antenna for Enhancing the Spatial Resolution of Optical Brain Imaging

2020 ◽  
Vol 15 (1) ◽  
pp. 24-31
Author(s):  
Zeshan Shoaib ◽  
Junhyun Kim ◽  
M. Ahmad Kamran ◽  
Myung Yung Jeong
Keyword(s):  
Brain Imaging ◽  
Spatial Resolution ◽  
Biomedical Imaging ◽  
Near Infrared ◽  
Low Cost ◽  
Resolution Enhancement ◽  
Separation Distance ◽  
Imaging Systems ◽  
Infrared Light ◽  
Near Infrared Light

Optical brain imaging has the potential for a bright future thanks to its low cost and portability relative to other biomedical imaging modalities. Temporal and spatial resolutions are considered to be the discriminatory features for selection of biomedical imaging equipment. Optical brain imaging systems, however, still face the bottleneck of limited spatial resolution. In this study, a novel method for guiding near infrared light at one of two particular gaps spaced nanometers apart has been presented. It includes the design of a nanogap nano-antenna for measurement of overlapping information on vicinities of only nanoscale separation distance, which could result in enhancement of the spatial resolution of optical brain imaging systems. The design of the proposed nano-gap nano-antenna channels near-infrared light to a specific path among two gaps separated by a nanometer-scale distance. A supportive analysis of gap design also is presented in this study. Additionally, the results of a comprehensive analysis of the behavior of light through the designed nano-gap nano-antenna are provided. The proposed methodology is a practical substitute for a high-density probe arrangement as well as a possible means of spatial resolution enhancement.

Off-axis electron holography applied to the study of interfaces

1992 ◽  
Vol 50 (1) ◽  
pp. 244-245
Author(s):  
J.K. Weiss ◽  
M. Gajdardziska-Josifovska ◽  
M. R. McCartney ◽  
David J. Smith
Keyword(s):  
Electric Fields ◽  
Resolution Enhancement ◽  
Interfacial Structure ◽  
Atomic Scale ◽  
Bulk Property ◽  
Electron Holography ◽  
Specimen Thickness ◽  
Composition And Structure ◽  
Chemical Segregation ◽  
Diffraction Effects

Interfacial structure is a controlling parameter in the behavior of many materials. Electron microscopy methods are widely used for characterizing such features as interface abruptness and chemical segregation at interfaces. The problem for high resolution microscopy is to establish optimum imaging conditions for extracting this information. We have found that off-axis electron holography can provide useful information for the study of interfaces that is not easily obtained by other techniques.Electron holography permits the recovery of both the amplitude and the phase of the image wave. Recent studies have applied the information obtained from electron holograms to characterizing magnetic and electric fields in materials and also to atomic-scale resolution enhancement. The phase of an electron wave passing through a specimen is shifted by an amount which is proportional to the product of the specimen thickness and the projected electrostatic potential (ignoring magnetic fields and diffraction effects). If atomic-scale variations are ignored, the potential in the specimen is described by the mean inner potential, a bulk property sensitive to both composition and structure. For the study of interfaces, the specimen thickness is assumed to be approximately constant across the interface, so that the phase of the image wave will give a picture of mean inner potential across the interface.

Digital imaging and quantitative image analysis of polymer blends

1996 ◽  
Vol 54 ◽  
pp. 170-171
Author(s):  
Xiao Zhang
Keyword(s):  
Digital Imaging ◽  
Imaging Techniques ◽  
Imaging Systems ◽  
Polymer Science ◽  
Key Factors ◽  
Multiple Imaging ◽  
Quantitative Image ◽  
Digital Imaging Systems ◽  
Multi Phase ◽  
Network Technologies

Polymer microscopy involves multiple imaging techniques. Speed, simplicity, and productivity are key factors in running an industrial polymer microscopy lab. In polymer science, the morphology of a multi-phase blend is often the link between process and properties. The extent to which the researcher can quantify the morphology determines the strength of the link. To aid the polymer microscopist in these tasks, digital imaging systems are becoming more prevalent. Advances in computers, digital imaging hardware and software, and network technologies have made it possible to implement digital imaging systems in industrial microscopy labs.

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