Coherence properties of sunlight
... observation s1 and s2 and J1 is the Bessel function of the f irst kind and order 1. It can be seen from Fig. 2 that our numerical calculations are in good agreement with the van Cittert – Zernike result. Our calculations demonstrate that the spectral degree of coherence of the f ield generated by an ...
... observation s1 and s2 and J1 is the Bessel function of the f irst kind and order 1. It can be seen from Fig. 2 that our numerical calculations are in good agreement with the van Cittert – Zernike result. Our calculations demonstrate that the spectral degree of coherence of the f ield generated by an ...
Total Reflection and Negative Refraction of
... frequency range have attracted much attention, due to their potential uses not only as signals in new-paradigm logic devices [3] but also as monochromatic “on board” gigahertz-frequencyrange microwave sources in integrated electronic circuits [4]. In order to realize such promising DESW applications ...
... frequency range have attracted much attention, due to their potential uses not only as signals in new-paradigm logic devices [3] but also as monochromatic “on board” gigahertz-frequencyrange microwave sources in integrated electronic circuits [4]. In order to realize such promising DESW applications ...
Imaging complex structures with diffuse light
... a result many accept that anatomically accurate DOT images cannot be reconstructed. Accordingly, the emphasis in DOT has been on functional imaging, and on multi-modality imaging, in which simultaneously acquired MRI or CT images are used to provide anatomical detail [4]. It has been suggested that ...
... a result many accept that anatomically accurate DOT images cannot be reconstructed. Accordingly, the emphasis in DOT has been on functional imaging, and on multi-modality imaging, in which simultaneously acquired MRI or CT images are used to provide anatomical detail [4]. It has been suggested that ...
244065
... The interaction of photons with metallic nanoparticles and nanoantennas is important to a number of emerging nanotechnology applications due to the large enhancement and tight localization of electromagnetic fields in the vicinity of nanoparticles and nanoantennas. This interaction has potential app ...
... The interaction of photons with metallic nanoparticles and nanoantennas is important to a number of emerging nanotechnology applications due to the large enhancement and tight localization of electromagnetic fields in the vicinity of nanoparticles and nanoantennas. This interaction has potential app ...
b1.2. generation and propagation of higher order gaussian beams
... a confocal microscope leads to lots of spatial and temporal changes to the beam. Hence, it needs to be understood while using such higher order Gaussian beams. It has been thought that Gaussian beam propagating through an ideal thin lens or a mirror with small curvature undergoes a change in paramet ...
... a confocal microscope leads to lots of spatial and temporal changes to the beam. Hence, it needs to be understood while using such higher order Gaussian beams. It has been thought that Gaussian beam propagating through an ideal thin lens or a mirror with small curvature undergoes a change in paramet ...
Experiments with Diffraction
... What would be a common object to compare the thicknesses using diffraction? A human hair is ideal to compare in a classroom! For middle schoolers: students can compare the width of the diffraction pattern for different hairs measured. Keep the laser and the distance, D, to the wall or screen the sa ...
... What would be a common object to compare the thicknesses using diffraction? A human hair is ideal to compare in a classroom! For middle schoolers: students can compare the width of the diffraction pattern for different hairs measured. Keep the laser and the distance, D, to the wall or screen the sa ...
Gradient and Scattering Forces on a Kerr Nanosphere
... and the scattering force component. The mechanism of the gradient force stems from two particular mechanisms. The inhomogeneous field force serves only the dipole or gradient force, whereas the Lorentz force contributes both the gradient and scattering forces. Thus, the mechanism of optical trapping ...
... and the scattering force component. The mechanism of the gradient force stems from two particular mechanisms. The inhomogeneous field force serves only the dipole or gradient force, whereas the Lorentz force contributes both the gradient and scattering forces. Thus, the mechanism of optical trapping ...
P - University of South Florida
... tissues or other materials has a variety of applications in clinical and laboratory studies. Recently developed optical coherence tomography [1] (OCT) is a scanning microscopic technique that is suitable for high-resolution cross-sectional imaging, which uses a MichelsonType interferometer and is de ...
... tissues or other materials has a variety of applications in clinical and laboratory studies. Recently developed optical coherence tomography [1] (OCT) is a scanning microscopic technique that is suitable for high-resolution cross-sectional imaging, which uses a MichelsonType interferometer and is de ...
Experiment Guide - Industrial Fiber Optics
... using a laser, some ordinary household items and a diffraction mosaic. We will start with a basic demonstration of diffraction (light bending around a corner) using a laser and knife (razor) blade edge. Our experiments will then progress to more dramatic visual effects that result from wave interfer ...
... using a laser, some ordinary household items and a diffraction mosaic. We will start with a basic demonstration of diffraction (light bending around a corner) using a laser and knife (razor) blade edge. Our experiments will then progress to more dramatic visual effects that result from wave interfer ...
Program Overview Erich Ippen
... • Excite 1S→2S transition (known to about 1 part in 1014.) • Lock 486 nm laser to 1S→2S • Excite two-photon transition such as 2S→10S • Measure excitation frequencies with an optical frequency comb, referenced to the 486 nm laser, i.e. referenced to hydrogen ...
... • Excite 1S→2S transition (known to about 1 part in 1014.) • Lock 486 nm laser to 1S→2S • Excite two-photon transition such as 2S→10S • Measure excitation frequencies with an optical frequency comb, referenced to the 486 nm laser, i.e. referenced to hydrogen ...
Porous Biomimetic Microlens Arrays as Multifunctional Optical
... octopus eyes move the lens inward and outward within the shell to focus on close-up and distant objects, respectively. Insects’ eyes are made of many mesh-like divisions, which split into many identical imaging units, called ommatidia. Each ommatidium has a corneal lens that can create a field-of-vi ...
... octopus eyes move the lens inward and outward within the shell to focus on close-up and distant objects, respectively. Insects’ eyes are made of many mesh-like divisions, which split into many identical imaging units, called ommatidia. Each ommatidium has a corneal lens that can create a field-of-vi ...
Interferometry
Interferometry is a family of techniques in which waves, usually electromagnetic, are superimposed in order to extract information about the waves. Interferometry is an important investigative technique in the fields of astronomy, fiber optics, engineering metrology, optical metrology, oceanography, seismology, spectroscopy (and its applications to chemistry), quantum mechanics, nuclear and particle physics, plasma physics, remote sensing, biomolecular interactions, surface profiling, microfluidics, mechanical stress/strain measurement, and velocimetry.Interferometers are widely used in science and industry for the measurement of small displacements, refractive index changes and surface irregularities. In analytical science, interferometers are used in continuous wave Fourier transform spectroscopy to analyze light containing features of absorption or emission associated with a substance or mixture. An astronomical interferometer consists of two or more separate telescopes that combine their signals, offering a resolution equivalent to that of a telescope of diameter equal to the largest separation between its individual elements.