Visible light optical coherence correlation spectroscopy
... even though the filters Fill and Fdet are not placed in a pupil plane but just as close to the objective as possible. The dark field contrast is essential for a high SNR while detecting the weak back-scattered field from the NPs. This interferometer implements a Bessel illumination and Gaussian dete ...
... even though the filters Fill and Fdet are not placed in a pupil plane but just as close to the objective as possible. The dark field contrast is essential for a high SNR while detecting the weak back-scattered field from the NPs. This interferometer implements a Bessel illumination and Gaussian dete ...
Broad Band Focusing and Demultiplexing of In-Plane Propagating Surface Plasmons Lin Li,
... focus result with horizontal focal length of f = 40 μm for an SPP wavelength of λ = 610 nm (from λ0 = 633 nm a HeNe laser). To compare with the experimental result, we performed a theoretical calculation based on the HuygensFresnel principle, in which all nanocaves in the array are considered as s ...
... focus result with horizontal focal length of f = 40 μm for an SPP wavelength of λ = 610 nm (from λ0 = 633 nm a HeNe laser). To compare with the experimental result, we performed a theoretical calculation based on the HuygensFresnel principle, in which all nanocaves in the array are considered as s ...
Microscopic Light Field Particle Image Velocimetry
... numbers ranging from 0.016 to 0.028. Flow at Reynolds numbers in the range of 0.02 to 0.03 was seeded with fluorescent particles and pumped through microchannels. A light field microscope with a lateral resolution of 6.25 µm and an axial resolution of 15.5 µm was designed and built based on the conc ...
... numbers ranging from 0.016 to 0.028. Flow at Reynolds numbers in the range of 0.02 to 0.03 was seeded with fluorescent particles and pumped through microchannels. A light field microscope with a lateral resolution of 6.25 µm and an axial resolution of 15.5 µm was designed and built based on the conc ...
Accelerating Light Beams along Arbitrary Convex
... x ¼ b½ekz 1. The green lines are the best fits of the positions of maximum intensity of the experimental data, to these trajectories. These lines are redrawn on the simulated intensities, highlighting the agreement between theory and experiment. (b) Summary of a set of experiments of the type pre ...
... x ¼ b½ekz 1. The green lines are the best fits of the positions of maximum intensity of the experimental data, to these trajectories. These lines are redrawn on the simulated intensities, highlighting the agreement between theory and experiment. (b) Summary of a set of experiments of the type pre ...
Imaging optical singularities; Understanding the duality of C-points and optical vortices
... Six images were recorded with a digital camera, after passage of the beam through polarization filters: linear ...
... Six images were recorded with a digital camera, after passage of the beam through polarization filters: linear ...
Development of an Orbital Angular Momentum Sorter for High
... [6], making them more cumbersome to set up. CGHs divide the overall intensity of a light beam into multiple diffraction orders, limiting them in efficiency but making these devices ...
... [6], making them more cumbersome to set up. CGHs divide the overall intensity of a light beam into multiple diffraction orders, limiting them in efficiency but making these devices ...
C-Point singularities in Poincare beams
... a field of ellipses whose semi-major axis rotates about the C-point. This divides the C-points into two classes: those that rotate with the angular coordinate about the C-point, and those that rotate counter to it. An index representing this rotation about the C-point is IC . Since ellipses’ axes ar ...
... a field of ellipses whose semi-major axis rotates about the C-point. This divides the C-points into two classes: those that rotate with the angular coordinate about the C-point, and those that rotate counter to it. An index representing this rotation about the C-point is IC . Since ellipses’ axes ar ...
Lens Aberrations and Ray Tracing 1 Background
... Where would spherical aberrations be an issue? Many times an experiment will require a wellcollimated beam or focusing as much energy as possible into a point, situations that mandate minimal spherical aberrations. Which lens should be used? Bi-convex or plano convex — and in the latter case, which ...
... Where would spherical aberrations be an issue? Many times an experiment will require a wellcollimated beam or focusing as much energy as possible into a point, situations that mandate minimal spherical aberrations. Which lens should be used? Bi-convex or plano convex — and in the latter case, which ...
HOLO TEXT
... divisions which focus upon these specific properties of light. In ascending order of complexity they are: Geometrical optics - this area of optics operates on the primary assumption that light travels in a straight line. Although this is an abstraction of reality, it nevertheless permits rather dire ...
... divisions which focus upon these specific properties of light. In ascending order of complexity they are: Geometrical optics - this area of optics operates on the primary assumption that light travels in a straight line. Although this is an abstraction of reality, it nevertheless permits rather dire ...
SOIL PENETROMETER WITH RAMAN SAMPLING
... 5.22 Necessary irradiance needed at the sample to saturate the pixel charge at one second of integration time ............................................................................. 91 5.23 Necessary irradiance at the sample needed to saturate the pixel charge of the uncooled CCD camera at one ...
... 5.22 Necessary irradiance needed at the sample to saturate the pixel charge at one second of integration time ............................................................................. 91 5.23 Necessary irradiance at the sample needed to saturate the pixel charge of the uncooled CCD camera at one ...
ray optics and optical instruments
... Property of partial reflection of light is yet another such example. Everyone who has looked into the water in a pond sees image of the face in it, but also sees the bottom of the pond. Newton argued that some of the corpuscles, which fall on the water, get reflected and some get transmitted. But wh ...
... Property of partial reflection of light is yet another such example. Everyone who has looked into the water in a pond sees image of the face in it, but also sees the bottom of the pond. Newton argued that some of the corpuscles, which fall on the water, get reflected and some get transmitted. But wh ...
diffraction uniformly illuminated circular aperture
... Fraunhofer diffraction occurs when both the incident and diffracted waves are effectively plane. This occurs when the distance from the source to the aperture is large so that the aperture is assumed to be uniformly illuminated and the distance from the aperture plane to the observation plane is als ...
... Fraunhofer diffraction occurs when both the incident and diffracted waves are effectively plane. This occurs when the distance from the source to the aperture is large so that the aperture is assumed to be uniformly illuminated and the distance from the aperture plane to the observation plane is als ...
Quantum Optics and Photonics S. Ezekiel, S. Shahriar Plasma Physics
... Proof-of-principle experiments have shown the ability to store and recall optical data using Raman excited spin echoes in Pr:YSO. The potential for higher temperature operation, without loss of performance, was also demonstrated in this material. Recently, we have shown that it is possible to obser ...
... Proof-of-principle experiments have shown the ability to store and recall optical data using Raman excited spin echoes in Pr:YSO. The potential for higher temperature operation, without loss of performance, was also demonstrated in this material. Recently, we have shown that it is possible to obser ...
PCT form - 1 - DESCRIPTION OPTICAL MEASURING DEVICE AND
... Also, the methods and devices according to the invention can ...
... Also, the methods and devices according to the invention can ...
Interferometric measurement of the resonant absorption and
... The optical setup for this experiment is shown in Fig. 4. The laser was a commercial system5 that consists of a temperature-controlled, grating-stabilized, wavelengthtunable diode laser with a linewidth of less than 1 MHz. Such a narrow linewidth is not necessary for this experiment because the narr ...
... The optical setup for this experiment is shown in Fig. 4. The laser was a commercial system5 that consists of a temperature-controlled, grating-stabilized, wavelengthtunable diode laser with a linewidth of less than 1 MHz. Such a narrow linewidth is not necessary for this experiment because the narr ...
E, EE - OSA Publishing
... Rapid progress in the development of laboratory softx-ray lasers lends hope that these devices can serve as intense sources of coherent x rays.1- 3 A possible application is the production of x-ray holograms4 for studying biological processes on a microscopic scale. Current laboratory x-ray lasers f ...
... Rapid progress in the development of laboratory softx-ray lasers lends hope that these devices can serve as intense sources of coherent x rays.1- 3 A possible application is the production of x-ray holograms4 for studying biological processes on a microscopic scale. Current laboratory x-ray lasers f ...
the fresnel diffraction: a story of light and darkness
... being equal to that of the undisturbed wavefront. The experiment was soon realized by Arago, another jury’s member, who indeed brilliantly confirmed Fresnel’s theory. This bright spot is now called after Poisson, Arago or Fresnel. Arago’s milestone experience was reproduced during the CNRS school of ...
... being equal to that of the undisturbed wavefront. The experiment was soon realized by Arago, another jury’s member, who indeed brilliantly confirmed Fresnel’s theory. This bright spot is now called after Poisson, Arago or Fresnel. Arago’s milestone experience was reproduced during the CNRS school of ...
[pdf]
... In the present study, the applicability of the theoretical approach described was verified for the case of light scattering in a two-layered medium simulated with the 1% aqueous solution of intralipid, that resembles moving scatterers, and gel films containing TiO2 particles immersed into agar, that ...
... In the present study, the applicability of the theoretical approach described was verified for the case of light scattering in a two-layered medium simulated with the 1% aqueous solution of intralipid, that resembles moving scatterers, and gel films containing TiO2 particles immersed into agar, that ...
Syllabus
... student in all academic work. The guiding principle of academic integrity is that a student’s submitted work must be the student’s own.” Unless otherwise noted by the instructor, work for all assignments in this course must be conducted independently by each student. CO-AUTHORED WORK OF ANY KIND IS ...
... student in all academic work. The guiding principle of academic integrity is that a student’s submitted work must be the student’s own.” Unless otherwise noted by the instructor, work for all assignments in this course must be conducted independently by each student. CO-AUTHORED WORK OF ANY KIND IS ...
1. Introduction - About the journal
... within the beam. The temporary redistribution of the intensity, known as scintillation, results from the chaotic flow changes of air and from thermal gradients within the optical path caused by the variation in air temperature and density. Zones (often referred to as eddies) of various sizes and dif ...
... within the beam. The temporary redistribution of the intensity, known as scintillation, results from the chaotic flow changes of air and from thermal gradients within the optical path caused by the variation in air temperature and density. Zones (often referred to as eddies) of various sizes and dif ...
Ultra-thin plasmonic optical vortex plate based on phase
... Traditional optical components that control the wavefront of light beams rely on the phase accumulated while light propagates in materials.1 This concept has been extensively used to create a variety of optical components such as lenses, prisms, gratings, and spiral phase plates. Spatial light modul ...
... Traditional optical components that control the wavefront of light beams rely on the phase accumulated while light propagates in materials.1 This concept has been extensively used to create a variety of optical components such as lenses, prisms, gratings, and spiral phase plates. Spatial light modul ...
(full text)
... near-field distribution of subwavelength periodic structures as a function of illumination orientations specified by polar angle, φ, and azimuthal angle, γ. The method was applied to determine the illuminationangle-dependent absorptance in cavity-based superconducting-nanowire single-photon detector ...
... near-field distribution of subwavelength periodic structures as a function of illumination orientations specified by polar angle, φ, and azimuthal angle, γ. The method was applied to determine the illuminationangle-dependent absorptance in cavity-based superconducting-nanowire single-photon detector ...
pdf
... defects; therefore, the mass production of uniform, defect-free, large-area 3D photonic structures, in particular with narrowband diffraction in the visible spectrum is limited.[8] For example, producing highquality monodisperse, highly-charged polystyrene particles through emulsion polymerization t ...
... defects; therefore, the mass production of uniform, defect-free, large-area 3D photonic structures, in particular with narrowband diffraction in the visible spectrum is limited.[8] For example, producing highquality monodisperse, highly-charged polystyrene particles through emulsion polymerization t ...
Michelson Interferometer
... destructive interference will occur resulting in minima of light intensity at their focal points on the eye retina. Since for fixed d and λ and different values of m, a system of dark and bright circle concentric fringes each corresponding to a constant θ will be observed, such interference fringes ...
... destructive interference will occur resulting in minima of light intensity at their focal points on the eye retina. Since for fixed d and λ and different values of m, a system of dark and bright circle concentric fringes each corresponding to a constant θ will be observed, such interference fringes ...
ABSTRACT Dissertation: STUDIES OF
... With the prevalence of nano-tools, such as e-beam lithography, focused ion beam (FIB), atomic-force microscopes (AFM), near-field scanning optical microscopes (NSOM) and tunneling-electronic microscopes (TEM), science research has entered a tiny world on a nanometer scale. How small is this? Compari ...
... With the prevalence of nano-tools, such as e-beam lithography, focused ion beam (FIB), atomic-force microscopes (AFM), near-field scanning optical microscopes (NSOM) and tunneling-electronic microscopes (TEM), science research has entered a tiny world on a nanometer scale. How small is this? Compari ...
Confocal microscopy
Confocal microscopy is an optical imaging technique for increasing optical resolution and contrast of a micrograph by means of adding a spatial pinhole placed at the confocal plane of the lens to eliminate out-of-focus light. It enables the reconstruction of three-dimensional structures from the obtained images. This technique has gained popularity in the scientific and industrial communities and typical applications are in life sciences, semiconductor inspection and materials science.