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Basics of Non-Linear Fiber Optics
Basics of Non-Linear Fiber Optics

Bright Field Microscopy
Bright Field Microscopy

... plate introduces a relative retardation between O and E rays of exactly one wavelength for green wavelengths of 551 nm. Green wavelengths therefore emerge from the retardation plate linearly polarized in the same orientation as the polarizer and are blocked at the analyzer. O and E waves of all othe ...
Quantitative surface normal measurement by a wavefront camera
Quantitative surface normal measurement by a wavefront camera

Overview
Overview

... -So, the index is a function of wavelength -Therefore, the amount of refraction is different -This effect is called chromatic dispersion ...
Optimization of multilayer reflectors for extreme ultraviolet lithography
Optimization of multilayer reflectors for extreme ultraviolet lithography

Lecture 24
Lecture 24

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Feature Selection/Extraction for Classification Problems

Lecture Series: Building the Future of Optical Modeling and Design
Lecture Series: Building the Future of Optical Modeling and Design

... concept for modeling the propagation of light through optical systems and gives an overview in theory and simulations of different modeling techniques to propagate light fields through for example homogeneous media, lenses, prisms, DOE’s, gratings and micro structures. Lecture 3: 29.08.2013 Modeling ...
Off-Axis Aperture Camera: 3D Shape Reconstruction
Off-Axis Aperture Camera: 3D Shape Reconstruction

... One can observe that the variation δπ[P(x)] in the above equation depends on the coordinates x. In particular, as kx − C1,2 k grows, also kδπ[P(x)]k grows. While in principle this behavior is acceptable, in practice it is an issue when using gradient-based techniques; part of the gradient of the cos ...
Nonlinear wave equations
Nonlinear wave equations

1 Macleod ‐ Thin Film Optics
1 Macleod ‐ Thin Film Optics

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What is a surface plasmon?

... quantitative phenomenological analysis of Wood anomalies. Phenomenology: using intuition then mathematics in order to describe quantitatively a phenomenon from the smallest number of parameters It allowed the discovery of the phenomenon of total absorption of light (Maystre and Petit, 1976, Hutley a ...
Volume Holographic Recording and Readout for 90
Volume Holographic Recording and Readout for 90

... where k refers to a propagation constant of light in the material, to be made more precise later. Also, the angle of the grating vector is terms in the surviving Laplace variable. It is pointed outthat the inverse transformation of 2-D Laplace functions as derived here is rather difficult even under ...
Waves & Oscillations Physics 42200 Spring 2013 Semester Lecture 30 – Geometric Optics
Waves & Oscillations Physics 42200 Spring 2013 Semester Lecture 30 – Geometric Optics

... An object is placed in front of two thin symmetrical coaxial lenses (lens 1 & lens 2) with focal lengths f1=+24 cm & f2=+9.0 cm, with a lens separation of L=10.0 cm. The object is 6.0 cm from lens 1. Where is the image of the object? Lens 1: ...
Comparison of Phase Diversity and Curvature Wavefront Sensing
Comparison of Phase Diversity and Curvature Wavefront Sensing

Effect of ABCD transformations on beam paraxiality
Effect of ABCD transformations on beam paraxiality

Integrated Optics
Integrated Optics

... • Integrated optics is a system of light-controlling components combined into a single device. The ultimate aim is to create miniature optical circuits similar to the silicon chips that have revolutionized the electronics industry. The advantage of the optical approach however is that data can be pr ...
Gullstrand equation
Gullstrand equation

... contact with solids. On this account, these three capillary menisci are known as liquid bridges (figure 5). Any moderately curved interface is determined by an intrinsic parameter (related to the media) and another purely geometrical one (principal radius of curvature on a reference point). In this ...
Wave Propagation - International Mathematical Union
Wave Propagation - International Mathematical Union

863875
863875

Multiplexing in high-density optical data storage using the orbital
Multiplexing in high-density optical data storage using the orbital

... The angular momentum of a (focused) beam of light comprises an intrinsic part due to the photon spin (units ± h or ± h / 2π per photon) and a part that can be associated with the geometrical structure of a light beam and we briefly recall the basic theory of this type of beams.2,3,4 Beams carrying n ...
Analysis and Compensation of Four Wave Mixing Products in
Analysis and Compensation of Four Wave Mixing Products in

... This article provides concepts of Four Wave Mixing which is a type of Nonlinearity. Due to the widespread growth in wireless communication, network operators are facing difficulty in accommodating the growing traffic. WDM appears to be a viable solution to such problems posed by the micro cellular s ...
Regenerating evanescent waves from a silver superlens
Regenerating evanescent waves from a silver superlens

... interface, and W(θ,φ) the dipole function. When the incident frequency is fixed, the photon impinging on the metal surface can excite the collective oscillation of conductive electrons at certain wave vectors, i.e., the surface plasmon with maximum efficiency. Therefore by coupling with a hemispheri ...
On the chromatic aberration of microlenses
On the chromatic aberration of microlenses

... Similar to classical achromats an achromatic microlens does not show an achromatic behavior over the full wavelength range in-between λ1 and λ2. The variation of achromats inside the range between these two design wavelengths is usually called secondary color aberration [1]. In classical optics the ...
Spherical aberration in spatial and temporal transforming lenses of
Spherical aberration in spatial and temporal transforming lenses of

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Fourier optics

Fourier optics is the study of classical optics using Fourier transforms, in which the wave is regarded as a superposition of plane waves that are not related to any identifiable sources; instead they are the natural modes of the propagation medium itself. Fourier optics can be seen as the dual of the Huygens–Fresnel principle, in which the wave is regarded as a superposition of expanding spherical waves which radiate outward from actual (physically identifiable) current sources via a Green's function relationship (see Double-slit experiment)A curved phasefront may be synthesized from an infinite number of these ""natural modes"" i.e., from plane wave phasefronts oriented in different directions in space. Far from its sources, an expanding spherical wave is locally tangent to a planar phase front (a single plane wave out of the infinite spectrum), which is transverse to the radial direction of propagation. In this case, a Fraunhofer diffraction pattern is created, which emanates from a single spherical wave phase center. In the near field, no single well-defined spherical wave phase center exists, so the wavefront isn't locally tangent to a spherical ball. In this case, a Fresnel diffraction pattern would be created, which emanates from an extended source, consisting of a distribution of (physically identifiable) spherical wave sources in space. In the near field, a full spectrum of plane waves is necessary to represent the Fresnel near-field wave, even locally. A ""wide"" wave moving forward (like an expanding ocean wave coming toward the shore) can be regarded as an infinite number of ""plane wave modes"", all of which could (when they collide with something in the way) scatter independently of one other. These mathematical simplifications and calculations are the realm of Fourier analysis and synthesis – together, they can describe what happens when light passes through various slits, lenses or mirrors curved one way or the other, or is fully or partially reflected. Fourier optics forms much of the theory behind image processing techniques, as well as finding applications where information needs to be extracted from optical sources such as in quantum optics. To put it in a slightly more complex way, similar to the concept of frequency and time used in traditional Fourier transform theory, Fourier optics makes use of the spatial frequency domain (kx, ky) as the conjugate of the spatial (x,y) domain. Terms and concepts such as transform theory, spectrum, bandwidth, window functions and sampling from one-dimensional signal processing are commonly used.
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