scholarly journals Aberrations in shift-invariant linear optical imaging systems using partially coherent fields

2015 ◽  
Vol 355 ◽  
pp. 398-405 ◽  
Author(s):  
Mario A. Beltran ◽  
Marcus J. Kitchen ◽  
Timothy C. Petersen ◽  
David M. Paganin
Keyword(s):  
Optical Imaging ◽  
Imaging Systems ◽  
Partially Coherent ◽  
Linear Optical

The Influence of Sol-gel Glass Technology on Coherent and Partially Coherent Optical Imaging Systems

1989 ◽  
Vol 175 ◽  
Author(s):  
Nicholas J. Phillips
Keyword(s):  
Optical Imaging ◽  
Sol Gel ◽  
Imaging Systems ◽  
New Work ◽  
Coherent Light ◽  
Colour Centre ◽  
Glass Technology ◽  
Partially Coherent ◽  
Ion Lasers

AbstractThis paper addresses developments in the understanding of intra-cavity elements in ion lasers using sol-gel prepared silica. Growing interest centres around the generation of coherent light in the near u.v. spectrum. Sol-gel silica offers unprecedented levels of purity and homogeneity for critical intra-cavity applications and may well solve the problem of creating colour-centre free Brewster windows for use in the u.v.We also report new work which makes use of the porous phase of such material and show how it is directed at one of the early bastions of photographic science – Lippmann's photography.

Techniques for On-orbit Calibration of Space Optical Imaging Systems Based on Auto-collimation

2021 ◽  
Vol 50 (1) ◽  
pp. 123-130
Author(s):  
赵珩翔 Hengxiang ZHAO ◽  
李立波 Libo LI ◽  
冯玉涛 Yutao FENG ◽  
李勇 Yong LI ◽  
刘薇 Wei LIU ◽  
...  
Keyword(s):  
Optical Imaging ◽  
Imaging Systems

Precise calibration method for arbitrary beam trajectories in scanning optical imaging systems

2021 ◽  
Author(s):  
Michał Meina ◽  
Patrycjusz Stremplewski ◽  
Carlos Lopez-Mariscal ◽  
Szymon Tamborski ◽  
Maciej Bartuzel ◽  
...  
Keyword(s):  
Optical Imaging ◽  
Calibration Method ◽  
Imaging Systems

scholarly journals Review of bio-optical imaging systems with a high space-bandwidth product

2021 ◽  
Vol 3 (04) ◽  
Author(s):  
Jongchan Park ◽  
David J. Brady ◽  
Guoan Zheng ◽  
Lei Tian ◽  
Liang Gao
Keyword(s):  
Optical Imaging ◽  
Imaging Systems ◽  
High Space

scholarly journals Surface chemistry and morphology in single particle optical imaging

Nanophotonics ◽  
2017 ◽  
Vol 6 (4) ◽  
pp. 713-730 ◽  
Author(s):  
Fulya Ekiz-Kanik ◽  
Derin Deniz Sevenler ◽  
Neşe Lortlar Ünlü ◽  
Marcella Chiari ◽  
M. Selim Ünlü
Keyword(s):  
Optical Imaging ◽  
Imaging Techniques ◽  
High Specificity ◽  
Physical Structure ◽  
Dark Field ◽  
Imaging Systems ◽  
Label Free ◽  
Inhomogeneous Surface ◽  
Improve Measurement ◽  
Molecular Specificity

AbstractBiological nanoparticles such as viruses and exosomes are important biomarkers for a range of medical conditions, from infectious diseases to cancer. Biological sensors that detect whole viruses and exosomes with high specificity, yet without additional labeling, are promising because they reduce the complexity of sample preparation and may improve measurement quality by retaining information about nanoscale physical structure of the bio-nanoparticle (BNP). Towards this end, a variety of BNP biosensor technologies have been developed, several of which are capable of enumerating the precise number of detected viruses or exosomes and analyzing physical properties of each individual particle. Optical imaging techniques are promising candidates among broad range of label-free nanoparticle detectors. These imaging BNP sensors detect the binding of single nanoparticles on a flat surface functionalized with a specific capture molecule or an array of multiplexed capture probes. The functionalization step confers all molecular specificity for the sensor’s target but can introduce an unforeseen problem; a rough and inhomogeneous surface coating can be a source of noise, as these sensors detect small local changes in optical refractive index. In this paper, we review several optical technologies for label-free BNP detectors with a focus on imaging systems. We compare the surface-imaging methods including dark-field, surface plasmon resonance imaging and interference reflectance imaging. We discuss the importance of ensuring consistently uniform and smooth surface coatings of capture molecules for these types of biosensors and finally summarize several methods that have been developed towards addressing this challenge.

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