Interference experiments with the fluorescence light of Ba ions
... decay strengths, the properties of the atom and resonator are significantly changed. For example, the cavity resonance is split into two peaks which are separated by the coupling constant between the atom and the resonator. Also, an excited atom emits its fluorescence photons mainly into the cavity. ...
... decay strengths, the properties of the atom and resonator are significantly changed. For example, the cavity resonance is split into two peaks which are separated by the coupling constant between the atom and the resonator. Also, an excited atom emits its fluorescence photons mainly into the cavity. ...
Quantitative determination of chromophore concentrations from 2D
... expressing p0 in terms of its spatial frequency components and using an exact time propagator to calculate the field at different times following the absorption of the laser pulse. The acoustic pressure, p, at position r0 at time t is expressed as ...
... expressing p0 in terms of its spatial frequency components and using an exact time propagator to calculate the field at different times following the absorption of the laser pulse. The acoustic pressure, p, at position r0 at time t is expressed as ...
The Microscope in a Computer: Image Synthesis from Three
... region of an aplanatic lens excited by a plane wave, derived by Richards and Wolf (Richards & Wolf, 1959; Wolf, 1959) using the angular-spectrum method. This beam has been used to simulate the coherent illumination in scanning-type confocal or differential-interference contrast (DIC) microscopes (Mu ...
... region of an aplanatic lens excited by a plane wave, derived by Richards and Wolf (Richards & Wolf, 1959; Wolf, 1959) using the angular-spectrum method. This beam has been used to simulate the coherent illumination in scanning-type confocal or differential-interference contrast (DIC) microscopes (Mu ...
Microscopic Light Field Particle Image Velocimetry
... Department of Mechanical Engineering, BYU Master of Science This work presents the development and analysis of a system that combines the concepts of light field microscopy [1] and particle image velocimetry (PIV) to measure three-dimensional velocities within a microvolume. Rectanglar microchannels ...
... Department of Mechanical Engineering, BYU Master of Science This work presents the development and analysis of a system that combines the concepts of light field microscopy [1] and particle image velocimetry (PIV) to measure three-dimensional velocities within a microvolume. Rectanglar microchannels ...
Application of Digital Phase-shift Shadow Moiré to Micro
... The purpose of the digital phase-shift shadow Moiré method is to capture only one image and to perform the phase-shifts numerically. The main advantage is that dynamic measurements can be done much easier. The reference grating is placed in the illumination path only, and the camera captures the ima ...
... The purpose of the digital phase-shift shadow Moiré method is to capture only one image and to perform the phase-shifts numerically. The main advantage is that dynamic measurements can be done much easier. The reference grating is placed in the illumination path only, and the camera captures the ima ...
d - s3.amazonaws.com
... Newtonian and Cassegrainian reflecting telescopes are the styles most of the astronomical telescopes use for the reason that it is possible to make very large reflecting mirrors to high surface quality. Hale 200 inch (5.08 m) at Mt. Palomar. Keck 10 m effective diameter from 36 segments at Mauna Kea ...
... Newtonian and Cassegrainian reflecting telescopes are the styles most of the astronomical telescopes use for the reason that it is possible to make very large reflecting mirrors to high surface quality. Hale 200 inch (5.08 m) at Mt. Palomar. Keck 10 m effective diameter from 36 segments at Mauna Kea ...
Atmospheric Optics 1
... For sunlight, absorption in the atmosphere is small – extinction is therefore dominated by scattering. When the size of the particles is much smaller than the wavelength of light (like atmospheric molecules or atoms), the process can be described by Rayleigh-Scattering. The oscillating electric fiel ...
... For sunlight, absorption in the atmosphere is small – extinction is therefore dominated by scattering. When the size of the particles is much smaller than the wavelength of light (like atmospheric molecules or atoms), the process can be described by Rayleigh-Scattering. The oscillating electric fiel ...
Optical measurement technique with telecentric lenses
... of rays. But only one single ray of this bundle will pass through the pinhole onto the image plane. Thus this ray indicates the top of the object in the image and hence its size. All other rays of this object point are of no interest for this image. In this manner, if we construct the images of all ...
... of rays. But only one single ray of this bundle will pass through the pinhole onto the image plane. Thus this ray indicates the top of the object in the image and hence its size. All other rays of this object point are of no interest for this image. In this manner, if we construct the images of all ...
Green's function formulation for third-harmonic generation microscopy
... With the Green’s function model we are able to investigate THG from interfaces of different orientations. Figure 4 shows that THG signals can arise from an interface perpendicular or parallel to the optical axis. Interestingly, the THG signal is dependent on the polarization direction of the excitat ...
... With the Green’s function model we are able to investigate THG from interfaces of different orientations. Figure 4 shows that THG signals can arise from an interface perpendicular or parallel to the optical axis. Interestingly, the THG signal is dependent on the polarization direction of the excitat ...
Excitation of a one-dimensional evanescent wave by conical edge
... For an SPP parallel to an edge, Weeber et al. observed an oscillatory pattern at the boundary that was used to explain the formation of plasmonic modes in strip waveguides [6]. Plasmon modes in these finite-size Au structures was theoretically shown to interact strongly with edges [14] ...
... For an SPP parallel to an edge, Weeber et al. observed an oscillatory pattern at the boundary that was used to explain the formation of plasmonic modes in strip waveguides [6]. Plasmon modes in these finite-size Au structures was theoretically shown to interact strongly with edges [14] ...
h and j aggregates - DST Unit of Nanoscience
... chromophores) are parallel aligned, two new excitonic bands are generated according to a simple exciton theory: one with higher energies and the other with lower than the monomer energy level as mention in the initial parts of the report. In H aggregates, the lower state is much ...
... chromophores) are parallel aligned, two new excitonic bands are generated according to a simple exciton theory: one with higher energies and the other with lower than the monomer energy level as mention in the initial parts of the report. In H aggregates, the lower state is much ...
Non-iterative phase hologram computation for low
... Computer-generated holograms (CGHs) have been researched for almost 50 years [1]. In the early times, CGHs were implemented by printed binary masks or kinoforms [2,3]. With the advances in the spatial light modulator (SLM) technology, CGHs are now widely used in dynamic applications such as optical ...
... Computer-generated holograms (CGHs) have been researched for almost 50 years [1]. In the early times, CGHs were implemented by printed binary masks or kinoforms [2,3]. With the advances in the spatial light modulator (SLM) technology, CGHs are now widely used in dynamic applications such as optical ...
Normal-Incidence Photoemission Electron Microscopy (NI
... the interface caused by the moving charges. Hence, propagating SPPs are accompanied by a strong electric field of optical frequency that is created by the collective electron density oscillation. Motivated by the potential to use SPPs in future broadband and ultrafast nanophotonic devices, a variety ...
... the interface caused by the moving charges. Hence, propagating SPPs are accompanied by a strong electric field of optical frequency that is created by the collective electron density oscillation. Motivated by the potential to use SPPs in future broadband and ultrafast nanophotonic devices, a variety ...
Light Field Editing Based on Reparameterization
... image. In contrast, An and Pellacini [1] propose a global optimization algorithm by considering similarity between all the possible pixel pairs in a target image; they formulate propagation as a quadratic system and solve it efficiently by taking advantage of its low-rank nature. However, this method ...
... image. In contrast, An and Pellacini [1] propose a global optimization algorithm by considering similarity between all the possible pixel pairs in a target image; they formulate propagation as a quadratic system and solve it efficiently by taking advantage of its low-rank nature. However, this method ...
HOLOGRAPHY, 1948-1971
... times worse than the resolution which one wants to obtain. Such a very bad lens was obtained using a microscope objective the wrong way round, and using it again in the reconstruction. So it was with some confidence that two years later, in 1950 we started a programme of holographic electron microsc ...
... times worse than the resolution which one wants to obtain. Such a very bad lens was obtained using a microscope objective the wrong way round, and using it again in the reconstruction. So it was with some confidence that two years later, in 1950 we started a programme of holographic electron microsc ...
Quadriwave lateral shearing interferometry
... Wavefront sensing is a well known technology for studying the aberrations of a light-beam. In most applications, only the lower-order aberrations (like spherical aberration or coma) are considered, because the lower the aberration order is, the stronger is the effect on the beam [12] [13]. As a cons ...
... Wavefront sensing is a well known technology for studying the aberrations of a light-beam. In most applications, only the lower-order aberrations (like spherical aberration or coma) are considered, because the lower the aberration order is, the stronger is the effect on the beam [12] [13]. As a cons ...
3D locations of the object directly from in
... recording distance between the object and the CCD is about 140 mm , and the digital hologram is transmitted to a computer via a frame grabber that performs 10 bits digitization. A hologram of a fiber recorded by the CCD is shown in Fig 5(a), however, there are many interference annulus caused by the ...
... recording distance between the object and the CCD is about 140 mm , and the digital hologram is transmitted to a computer via a frame grabber that performs 10 bits digitization. A hologram of a fiber recorded by the CCD is shown in Fig 5(a), however, there are many interference annulus caused by the ...
Enhancing four-wave-mixing processes by nanowire arrays coupled to a gold film Ekaterina Poutrina,
... that travel along the film surface and decay exponentially away from the interface, while metal nanoparticles support tightly confined localized surface plasmon resonances (LSPRs). The field distributions and scattering characteristics associated with LSPRs depend critically on the geometry of the n ...
... that travel along the film surface and decay exponentially away from the interface, while metal nanoparticles support tightly confined localized surface plasmon resonances (LSPRs). The field distributions and scattering characteristics associated with LSPRs depend critically on the geometry of the n ...
Aperture interference and the volumetric resolution of light field
... takes diffraction and interference into account while specifically targeting 3D as opposed to 4D reconstruction, one can outperform the spatial resolution achieved with the ‘conventional’ light field sampling approach that does not combine angular measurements. Our results stem from the initial obse ...
... takes diffraction and interference into account while specifically targeting 3D as opposed to 4D reconstruction, one can outperform the spatial resolution achieved with the ‘conventional’ light field sampling approach that does not combine angular measurements. Our results stem from the initial obse ...
Methods and Applications of Optical Holography
... Dennis Gabor invented holography in 1947 [1] (Nobel Prize in 1971). It was dedicated for microscopy as was indicated in the article “Microscopy by Reconstructed Wave fronts” [2]. Gabor introduced the term of holography using two Greek words: ‘Holos’ – whole and ‘Graphe’ – writing. These two words me ...
... Dennis Gabor invented holography in 1947 [1] (Nobel Prize in 1971). It was dedicated for microscopy as was indicated in the article “Microscopy by Reconstructed Wave fronts” [2]. Gabor introduced the term of holography using two Greek words: ‘Holos’ – whole and ‘Graphe’ – writing. These two words me ...
Wavefront Technology
... used in ocular aberrometers is to measure the deviation of individual rays of light passing through various locations in the pupil of the eye. This is done by measuring reflected light from the retinal spot created by the central reference beam. This spot serves as a point source that radiates light ...
... used in ocular aberrometers is to measure the deviation of individual rays of light passing through various locations in the pupil of the eye. This is done by measuring reflected light from the retinal spot created by the central reference beam. This spot serves as a point source that radiates light ...
Observation of collective excitation of two individual atoms in the
... 18±0.5 µm and repeated the excitation sequence 100 times, starting each time with newly trapped atoms. We measured for each atom whether it was lost or recaptured at the end of each sequence and calculated the probability to excite it in the Rydberg state, which is equal to the probability to lose i ...
... 18±0.5 µm and repeated the excitation sequence 100 times, starting each time with newly trapped atoms. We measured for each atom whether it was lost or recaptured at the end of each sequence and calculated the probability to excite it in the Rydberg state, which is equal to the probability to lose i ...
Microscope Basics
... Not many improvements were made until the 1850’s when several inventors in Europe and America made vast improvements. From this time frame, modern compound and stereo microscopes have changed very little. In the early 1930’s the first electron beam microscopes were developed which were a breakthroug ...
... Not many improvements were made until the 1850’s when several inventors in Europe and America made vast improvements. From this time frame, modern compound and stereo microscopes have changed very little. In the early 1930’s the first electron beam microscopes were developed which were a breakthroug ...
Modeling phase microscopy of transparent three
... quantitative phase imaging, based on a product-ofconvolutions (POC) approach. The model is not more computationally intensive than those based on the first Born and Rytov approximations, while relaxing the object size and contrast limitations that those approximations impose. We compare the ability ...
... quantitative phase imaging, based on a product-ofconvolutions (POC) approach. The model is not more computationally intensive than those based on the first Born and Rytov approximations, while relaxing the object size and contrast limitations that those approximations impose. We compare the ability ...