Blind Optical Aberration Correction by Exploring
... Optical aberration widely exists in optical imaging systems, especially in consumer-level cameras. In contrast to previous solutions using hardware compensation or precalibration, we propose a computational approach for blind aberration removal from a single image, by exploring various geometric and ...
... Optical aberration widely exists in optical imaging systems, especially in consumer-level cameras. In contrast to previous solutions using hardware compensation or precalibration, we propose a computational approach for blind aberration removal from a single image, by exploring various geometric and ...
super-resolved fluorescence microscopy
... To date there are two far-field principles that lead to fluorescence-based microscopy with a resolution far beyond Abbe’s famous limit. The first is here referred to as “super-resolved ensemble fluorophore microscopy” and the second as “super-resolved single fluorophore microscopy”. The first princi ...
... To date there are two far-field principles that lead to fluorescence-based microscopy with a resolution far beyond Abbe’s famous limit. The first is here referred to as “super-resolved ensemble fluorophore microscopy” and the second as “super-resolved single fluorophore microscopy”. The first princi ...
S U P E R -R E S O LV... Scientific Background on the Nobel Prize in Chemistry 2014
... To date there are two far-field principles that lead to fluorescence-based microscopy with a resolution far beyond Abbe’s famous limit. The first is here referred to as “super-resolved ensemble fluorophore microscopy” and the second as “super-resolved single fluorophore microscopy”. The first princi ...
... To date there are two far-field principles that lead to fluorescence-based microscopy with a resolution far beyond Abbe’s famous limit. The first is here referred to as “super-resolved ensemble fluorophore microscopy” and the second as “super-resolved single fluorophore microscopy”. The first princi ...
The Intermediate Optical System of Laser
... the sample is flat, this property is not required, but in a thick sample, fluorophores located in front and behind the focal plane (Dz π 0) will also be excited by the incoming laser beam. However, their fluorescence emission will be focused either in front of or behind the image plane that includes ...
... the sample is flat, this property is not required, but in a thick sample, fluorophores located in front and behind the focal plane (Dz π 0) will also be excited by the incoming laser beam. However, their fluorescence emission will be focused either in front of or behind the image plane that includes ...
IR Optical Taggants
... diodes are highly directional. This not only raises concerns about eye safety, but also limits the effectiveness for large-area illumination. Therefore, light-scattering/ -diffusing media are often integrated with LEDs and laser diodes. Examples of these optical media include side-emitting fibers/ s ...
... diodes are highly directional. This not only raises concerns about eye safety, but also limits the effectiveness for large-area illumination. Therefore, light-scattering/ -diffusing media are often integrated with LEDs and laser diodes. Examples of these optical media include side-emitting fibers/ s ...
Get PDF - OSA Publishing
... modelling of low NA imaging systems is beyond the scope of this article. This article is concerned with rigorous vectorial imaging theory. Vectorial theory for calculating fields in the focal region is now well established [3, 4, 1]. Approximate imaging models have been proposed for restricted scatt ...
... modelling of low NA imaging systems is beyond the scope of this article. This article is concerned with rigorous vectorial imaging theory. Vectorial theory for calculating fields in the focal region is now well established [3, 4, 1]. Approximate imaging models have been proposed for restricted scatt ...
Natural object visualization by digital holography NATURAL
... like a model to design nano-opto-components, so the study of their properties is of great importance. Starting from a phyllotaxis geometry, which is the arrangement in many plants (the seeds of the sunflower, for example), we designed a diffractive element with different parameters [6]. In this pape ...
... like a model to design nano-opto-components, so the study of their properties is of great importance. Starting from a phyllotaxis geometry, which is the arrangement in many plants (the seeds of the sunflower, for example), we designed a diffractive element with different parameters [6]. In this pape ...
Properties of Waves Power Notes
... How can we describe a wave? • Another property is wave period, the time required for one wavelength to pass a given point. • Frequency is also a way to express how far apart waves are in time. It is the number of crests that pass a point in a certain amount of time. ...
... How can we describe a wave? • Another property is wave period, the time required for one wavelength to pass a given point. • Frequency is also a way to express how far apart waves are in time. It is the number of crests that pass a point in a certain amount of time. ...
rtf
... Imaging Theory In an electron microscope the specimen scatters the electron wave and the lenses produce the image. The two are very different processes and have to be dealt with quite separately. The reason why imaging is such an important area is that images can lie. As human beings we are conditio ...
... Imaging Theory In an electron microscope the specimen scatters the electron wave and the lenses produce the image. The two are very different processes and have to be dealt with quite separately. The reason why imaging is such an important area is that images can lie. As human beings we are conditio ...
Blind Correction of Optical Aberrations - Max-Planck
... The design of any lens forms a trade-off between these constraints, leaving us with residual errors that are called optical aberrations. Some errors are due to the fact that light coming through different parts of the lens can not be focused onto a single point (spherical aberrations, astigmatism an ...
... The design of any lens forms a trade-off between these constraints, leaving us with residual errors that are called optical aberrations. Some errors are due to the fact that light coming through different parts of the lens can not be focused onto a single point (spherical aberrations, astigmatism an ...
Roger`s Descriptions
... 1-D and 2-D continuous Fourier transforms 4.3.1 projections of functions onto basis functions 4.3.2 basis functions of linear shift-invariant systems 4.3.3 theorems of continuous Fourier transforms Imaging systems as filters 4.4.1 classes of filters: lowpass, highpass, bandpass, phase ...
... 1-D and 2-D continuous Fourier transforms 4.3.1 projections of functions onto basis functions 4.3.2 basis functions of linear shift-invariant systems 4.3.3 theorems of continuous Fourier transforms Imaging systems as filters 4.4.1 classes of filters: lowpass, highpass, bandpass, phase ...
A guide to super-resolution fluorescence microscopy
... numerical apertures, the optical resolution of light microscopy was limited to approximately half of the wavelength of the light used. In practical terms this meant that only cellular structure and objects that were at least 200 to 350 nm apart could be resolved by light microscopy (see box for deta ...
... numerical apertures, the optical resolution of light microscopy was limited to approximately half of the wavelength of the light used. In practical terms this meant that only cellular structure and objects that were at least 200 to 350 nm apart could be resolved by light microscopy (see box for deta ...
Three-dimensional imaging of a phase object from a single sample... Chien-Chun Chen, Huaidong Jiang, Lu Rong,
... harmonic generation, soft x-ray laser sources, and free electron lasers, coherent diffraction imaging (CDI) has been applied to conduct structure studies of a wide range of samples in materials science, nanoscience, and biology.8–31 To perform 3D CDI, it is necessary to acquire a sequence of 2D diff ...
... harmonic generation, soft x-ray laser sources, and free electron lasers, coherent diffraction imaging (CDI) has been applied to conduct structure studies of a wide range of samples in materials science, nanoscience, and biology.8–31 To perform 3D CDI, it is necessary to acquire a sequence of 2D diff ...
lenses - Van Buren Public Schools
... object, represented by the vertical arrow. Any point except for the point on the principal axis will work, but it is customary to choose a point at the tip of the arrow. The path of one refracted ray is known from the definition of the focal point. A ray parallel to the principal axis will be refrac ...
... object, represented by the vertical arrow. Any point except for the point on the principal axis will work, but it is customary to choose a point at the tip of the arrow. The path of one refracted ray is known from the definition of the focal point. A ray parallel to the principal axis will be refrac ...
Negative refraction and Negative refractive index
... real part of the extraordinary index is less than its imaginary part. The condition for negative refraction is satisfied by various metal-dielectric composite materials. The proposed sample of silver nanowires embedded in an alumina matrix with complex = 2.351 + i0.010 and extraordinary index N ...
... real part of the extraordinary index is less than its imaginary part. The condition for negative refraction is satisfied by various metal-dielectric composite materials. The proposed sample of silver nanowires embedded in an alumina matrix with complex = 2.351 + i0.010 and extraordinary index N ...
Shrinkage Modeling of Injection Molded Precision Optics
... 1. Shrinkage value for each part. 2. Relationship between the volume of the part and its shrinkage, if any. Equipped with this information, we will re-fabricate the respective mold inserts with appropriate shrink factors that were determined empirically in the above steps. This simple-geometry lens ...
... 1. Shrinkage value for each part. 2. Relationship between the volume of the part and its shrinkage, if any. Equipped with this information, we will re-fabricate the respective mold inserts with appropriate shrink factors that were determined empirically in the above steps. This simple-geometry lens ...
Daniel Gogny and RCS - Cea-Dam
... • King computer of mid eighties was Cray X-MP, delivering less than 1 Gflops peak • Y-MP much better: > 2 Gflops,but it was not enough… X-MP ...
... • King computer of mid eighties was Cray X-MP, delivering less than 1 Gflops peak • Y-MP much better: > 2 Gflops,but it was not enough… X-MP ...
Unit 3 Lesson 2
... How can we describe a wave? • Another property is wave period, the time required for one wavelength to pass a given point. • Frequency is also a way to express how far apart waves are in time. It is the number of crests that pass a point in a certain amount of time. ...
... How can we describe a wave? • Another property is wave period, the time required for one wavelength to pass a given point. • Frequency is also a way to express how far apart waves are in time. It is the number of crests that pass a point in a certain amount of time. ...
High-speed addressable confocal microscopy for functional imaging
... poorer photon collection and results in degradation to the achievable signal-to-noise ratio. Another way to increase the frame rate of confocal microscopes, without drastically reducing the dwell time at any particular pixel, is by simultaneously scanning several sufficiently spaced spots, as is don ...
... poorer photon collection and results in degradation to the achievable signal-to-noise ratio. Another way to increase the frame rate of confocal microscopes, without drastically reducing the dwell time at any particular pixel, is by simultaneously scanning several sufficiently spaced spots, as is don ...
Imaging and Non-imaging System Modeling in ASAP
... The optical design and analysis process involves computing the first-order properties, aberrations and radiometry (photometry) of the imaging and illumination components individually and as a system. Optical engineers design both types of systems, but engineers designing illumination systems are com ...
... The optical design and analysis process involves computing the first-order properties, aberrations and radiometry (photometry) of the imaging and illumination components individually and as a system. Optical engineers design both types of systems, but engineers designing illumination systems are com ...
WHITEPAPER Centration Measurement, Alignment
... Infrared Spectral Ranges The infrared wavelength range is divided in three distinct ranges for imaging applications. These bands exhibit high transmission of light through air and are separated by strongly absorbing bands in the spectrum. The three imaging infrared ranges are: short wave infrared (S ...
... Infrared Spectral Ranges The infrared wavelength range is divided in three distinct ranges for imaging applications. These bands exhibit high transmission of light through air and are separated by strongly absorbing bands in the spectrum. The three imaging infrared ranges are: short wave infrared (S ...
Surface Water Waves
... impossible feats. These include cloaking devices and perfect optical lenses free from chromatic aberrations. Using metamaterials they would enable light of visible wavelengths to be deflected around an object and continue its path on the far side as though the object were not there. This phenomenon ...
... impossible feats. These include cloaking devices and perfect optical lenses free from chromatic aberrations. Using metamaterials they would enable light of visible wavelengths to be deflected around an object and continue its path on the far side as though the object were not there. This phenomenon ...
A Practical Guide to Optical Trapping
... condenser lenses are set up in a telescope by imaging the field iris in the image plane of the microscope (Fig. 4). This telescope will become important later in the discussion of back-focal plane detection and beam steering. Koehler illumination, achieved by imaging the lamp filament in the plane o ...
... condenser lenses are set up in a telescope by imaging the field iris in the image plane of the microscope (Fig. 4). This telescope will become important later in the discussion of back-focal plane detection and beam steering. Koehler illumination, achieved by imaging the lamp filament in the plane o ...
Performance of extended depth of field systems and
... Cameras with Extended Depth of Field (EDOF) have become popular in the camera-phone segment, with several benefits: for instance avoid cost and size of autofocus mechanisms or to enable high resolution wafer level cameras. Roughly speaking, for a “given amount of Modulation Transfer Function (MTF)”, ...
... Cameras with Extended Depth of Field (EDOF) have become popular in the camera-phone segment, with several benefits: for instance avoid cost and size of autofocus mechanisms or to enable high resolution wafer level cameras. Roughly speaking, for a “given amount of Modulation Transfer Function (MTF)”, ...
8th International Symposium on Optical Storage/2008 International
... attempts to increase the storage density in optical memories. There were reports both on recent advancements in near-field optical storage and progress related to a better understanding of the super-RENS effect (Prof. Tominaga, AIST, Tsukuba, Japan). In this talk an in-depth understanding of atomic ...
... attempts to increase the storage density in optical memories. There were reports both on recent advancements in near-field optical storage and progress related to a better understanding of the super-RENS effect (Prof. Tominaga, AIST, Tsukuba, Japan). In this talk an in-depth understanding of atomic ...
Superlens
A practical superlens, or super lens, is a lens which uses metamaterials to go beyond the diffraction limit. The diffraction limit is a feature of conventional lenses and microscopes that limits the fineness of their resolution. Many lens designs have been proposed that go beyond the diffraction limit in some way, but there are constraints and obstacles involved in realizing each of them.