Visible light optical coherence correlation spectroscopy
... in order to increase the detection efficiency and to simplify the alignment of components. Because the glass slide is always closer to the objective than the sample, a dark field is obtained even though the filters Fill and Fdet are not placed in a pupil plane but just as close to the objective as p ...
... in order to increase the detection efficiency and to simplify the alignment of components. Because the glass slide is always closer to the objective than the sample, a dark field is obtained even though the filters Fill and Fdet are not placed in a pupil plane but just as close to the objective as p ...
Temperature-dependent refractive index of silicon and germanium
... Silicon and germanium are perhaps the two most well-understood seiniconductoi-inaterials in the context of solid state device technologies and more recently inicroinachining and nanotechnology. Meanwhile, these two materials are also important in the field of infrared lens design. Optical instr~line ...
... Silicon and germanium are perhaps the two most well-understood seiniconductoi-inaterials in the context of solid state device technologies and more recently inicroinachining and nanotechnology. Meanwhile, these two materials are also important in the field of infrared lens design. Optical instr~line ...
Optical Behavior of Pellicles
... less than 1.3). Thus, single layer pellicles are the most common at these wavelengths. A typical ArF pellicle will have a complex refractive index of n+i = 1.40 + i0.0001 and a thickness of 828 nm. While designed to protect the mask from particles, pellicles are in fact optical elements within the i ...
... less than 1.3). Thus, single layer pellicles are the most common at these wavelengths. A typical ArF pellicle will have a complex refractive index of n+i = 1.40 + i0.0001 and a thickness of 828 nm. While designed to protect the mask from particles, pellicles are in fact optical elements within the i ...
Light scattering models of white blood cells and back
... where p is the number of internal reflections. Figure 1 shows that, for p = 0, the ray is externally reflected; for p = 1, the ray is refracted and leaves the particle without any internal reflection; and for p > 1, the ray is internally reflected. θp is a deflecting angle and is defined as: θp = 2p ...
... where p is the number of internal reflections. Figure 1 shows that, for p = 0, the ray is externally reflected; for p = 1, the ray is refracted and leaves the particle without any internal reflection; and for p > 1, the ray is internally reflected. θp is a deflecting angle and is defined as: θp = 2p ...
Mechanistic Studies on the Galvanic Replacement Reaction
... nm Ag nanospheres and dodecylamine-hydrophobized HAuCl4 in toluene.22 Another study from the Alivisatos group showed that the replacement reaction between AuCl3 and single-crystal Ag cuboctahedrons in o-dichlorobenzene resulted in the epitaxial growth of Au on the {100} facets of Ag template.23 The ...
... nm Ag nanospheres and dodecylamine-hydrophobized HAuCl4 in toluene.22 Another study from the Alivisatos group showed that the replacement reaction between AuCl3 and single-crystal Ag cuboctahedrons in o-dichlorobenzene resulted in the epitaxial growth of Au on the {100} facets of Ag template.23 The ...
Mixing by internal waves quantified using combined PIV/PLIF
... a gradient of dye was tried by Barrett and Van Atta (1991), who studied grid turbulence in a stratified fluid, but, by the authors’ own admission, the PLIF data provided little quantitative measurement. The principal reason for this is that in the former cases mentioned (gravity currents, jets), the ...
... a gradient of dye was tried by Barrett and Van Atta (1991), who studied grid turbulence in a stratified fluid, but, by the authors’ own admission, the PLIF data provided little quantitative measurement. The principal reason for this is that in the former cases mentioned (gravity currents, jets), the ...
2 Theoretical Concepts
... We have already encountered evanescent fields in the previous subsection. Evanescent fields often play a crucial role in the field of nanooptics where the interaction on a length scale far below the wavelength of light is of interest. Evanescent fields are described as a plane wave of the form ...
... We have already encountered evanescent fields in the previous subsection. Evanescent fields often play a crucial role in the field of nanooptics where the interaction on a length scale far below the wavelength of light is of interest. Evanescent fields are described as a plane wave of the form ...
www.durnin.info
... feasible, and preliminary experimental confirmations of the predictions presented here have been obtained. Further experiments are under way, and detailed results will be presented separately.3 Finally, we want to point out that the class of nondiffracting fields given by Eq. (2) can be further gene ...
... feasible, and preliminary experimental confirmations of the predictions presented here have been obtained. Further experiments are under way, and detailed results will be presented separately.3 Finally, we want to point out that the class of nondiffracting fields given by Eq. (2) can be further gene ...
Introduction to Adaptive Optics and Deformable
... mirrors to increase depth range, creating truer 3D. In vision applications, adaptive optics are used in robotic vision and surveillance cameras to provide real time or longdistance imaging. In microscopy, adaptive optics correct for aberrations in static lenses. Biomedical applications, including o ...
... mirrors to increase depth range, creating truer 3D. In vision applications, adaptive optics are used in robotic vision and surveillance cameras to provide real time or longdistance imaging. In microscopy, adaptive optics correct for aberrations in static lenses. Biomedical applications, including o ...
Atmospheric Turbulence and its Influence on Adaptive Optics
... DIMM instruments measure the differential centroid motion of two images resulting from one star split across two apertures of known separation. A quick frame rate allows many images to be taken per second, recording the image motions. The variance of the differential image motions can be found paral ...
... DIMM instruments measure the differential centroid motion of two images resulting from one star split across two apertures of known separation. A quick frame rate allows many images to be taken per second, recording the image motions. The variance of the differential image motions can be found paral ...
Scanning transmission soft x-ray microscopy at beamline X
... preservation in biological specimens8. This system has also been used for demonstrations of tomographic imaging, including a reconstruction of a frozen hydrated fibroblast at approximately 100x100x250 nm resolution9. Recent studies with the cryoSTXM by T. Beetz of Stony Brook have centered on a more ...
... preservation in biological specimens8. This system has also been used for demonstrations of tomographic imaging, including a reconstruction of a frozen hydrated fibroblast at approximately 100x100x250 nm resolution9. Recent studies with the cryoSTXM by T. Beetz of Stony Brook have centered on a more ...
(full text)
... shown in (a) and (b) respectively, and the total x-ray spectrum for the region that was imaged is shown in (d). The darker areas represent the copper or the aluminum. The image created with secondary electrons is shown in (c). All three images cover the same area and are only displayed at different ...
... shown in (a) and (b) respectively, and the total x-ray spectrum for the region that was imaged is shown in (d). The darker areas represent the copper or the aluminum. The image created with secondary electrons is shown in (c). All three images cover the same area and are only displayed at different ...
A Calculation of Electric Field Strengths for Light in a Multilayer Thin
... the wave as it propagates through the medium, while kj is an absorption coefficient that will cause the wave to “die out” as it propagates through the medium. These constants are characteristic of the material through which the wave is propagating and the frequency of the incident wave. Also useful ...
... the wave as it propagates through the medium, while kj is an absorption coefficient that will cause the wave to “die out” as it propagates through the medium. These constants are characteristic of the material through which the wave is propagating and the frequency of the incident wave. Also useful ...
Heuristic Green`s function of the time dependent
... that, in their migration, undergo many scattering events [8]. Conversely, by exploiting an RTE solution it can be foreseen to overcome the limits of the DE and to immediately obtain a twofold improvement: (i) the error determined by approximations of the theory would be drastically reduced, therefo ...
... that, in their migration, undergo many scattering events [8]. Conversely, by exploiting an RTE solution it can be foreseen to overcome the limits of the DE and to immediately obtain a twofold improvement: (i) the error determined by approximations of the theory would be drastically reduced, therefo ...
Determination of guided-mode resonances in photonic crystal slabs
... see in Section 6. So we used the membrane effective index neff-v of Eq. (13) found in Section 6 (effective index here is used in the sense “thin-film” “vertical” effective index and not “waveguide” effective index), and plotted the more representative curves of position t=λ ¼ 1=ð4neff-v Þ, 1=ð2neff- ...
... see in Section 6. So we used the membrane effective index neff-v of Eq. (13) found in Section 6 (effective index here is used in the sense “thin-film” “vertical” effective index and not “waveguide” effective index), and plotted the more representative curves of position t=λ ¼ 1=ð4neff-v Þ, 1=ð2neff- ...
Lecture 3
... Common Modes of Analysis Depending on the nature of samples, different illumination methods must be used ...
... Common Modes of Analysis Depending on the nature of samples, different illumination methods must be used ...
Monitoring the Evaporation of Fluids from Fiber-Optic Micro
... can provide information on numerous properties of liquids including surface tension, viscosity, refractive index and chemical composition of solutions. In most cases, droplets are monitored through direct observation in contact angle goniometers, by micro-gravimeters, by atomic force microscopy, or ...
... can provide information on numerous properties of liquids including surface tension, viscosity, refractive index and chemical composition of solutions. In most cases, droplets are monitored through direct observation in contact angle goniometers, by micro-gravimeters, by atomic force microscopy, or ...
Photoexfoliation of Graphene from Graphite: An Ab Initio Study Yoshiyuki Miyamoto,
... time-dependent density functional calculations for electrons with molecular dynamics simulations for ions. Our results show that femtosecond laser pulses create a nonequilibrium charge distribution in a vibrationally cold sample. Laser pulses within the realm of current experiments, with the wavelen ...
... time-dependent density functional calculations for electrons with molecular dynamics simulations for ions. Our results show that femtosecond laser pulses create a nonequilibrium charge distribution in a vibrationally cold sample. Laser pulses within the realm of current experiments, with the wavelen ...
Surface plasmon resonance microscopy
Surface Plasmon Resonance Microscopy (SPRM) is a label free analytical tool that combines the surface plasmon resonance of metallic surfaces with imaging of the metallic surface.The heterogeneity of the refractive index of the metallic surface imparts high contrast images, caused by the shift in the resonance angle.SPRM can achieve a thickness sensitivity of few tenths of nanometer and lateral resolution achieves values of micrometer scale.SPRM is used to characterize surfaces, self-assembled monolayers, multilayer films, metal nanoparticles, oligonucleotides arrays, binding and reduction reactions.Surface Plasmon polaritons are surface electromagnetic waves coupled to oscillating free electrons of a metallic surface that propagate along a metal/dielectric interface.Since polaritons are highly sensitive to small changes in the refractive index of the metallic material,it can be used as a biosensing tool that does not require labeling. SPRM measurements can be made in real-time.Wang and collaborators studied the binding kinetics of membrane proteins in single cells.The experimental setup of an SPRM can be seen in the Figure 1, where an adherent cell is grown on a gold film and placed in an inverted microscope, p-polarized light was used to create the surface plasmons on the gold film and a CCD camera was used to create the SPR image.