Rendering of Newton’s Rings in Monochrome Light

Mapping Intimacies ◽

10.20948/graphicon-2021-3027-116-125 ◽

2021 ◽

Author(s):

Victor Debelov ◽

Nikita Dolgov

Keyword(s):

Optical Design ◽

Picture Plane ◽

Interference Effects ◽

Acceptable Solution ◽

Light Interference ◽

Complex Scenes ◽

Design Systems ◽

Polarization Of Light ◽

Realistic Images ◽

Equal Thickness

Newton's rings are an interference pattern related to fringes of equal thickness. This image can be obtained on a simple experimental optical setup. Modern common renderers, based on zerothickness ray tracing, calculate highly realistic images of complex 3D scenes, which are computer models of scenes from the real world. However, they do not allow you to reproduce such phenomena as interference, because they ignore even the polarization of light. Interference is studied by physical optics, and it is natural to assume that if the calculation is based on the "tracing" of waves in the scene, this problem can be solved. An algorithm is known when a solid beam of light is used instead of a light wave. The results of the calculations show images of the interference effects; Newton's rings are also calculated. This is an acceptable solution for simple scenes involving a few objects. It is also good for optical design systems, when the result is important, and not the time spent. But not practical for universal renderers, which must calculate the image in an acceptable time for very complex scenes. In this paper, we propose an algorithm based on the traditional method of tracing paths consisting of zero-thickness rays. Only on the last ray of a path that crosses the picture plane is the modification made. It is assumed that these rays characterize spherical wavelets. In this paper, we consider the results of applying the mentioned heuristics to classical optical experiments.

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Light interference effects: a tool for the modulation of the Si-nc luminescence spectrum and the determination of the emitting center depth distribution

10.1117/12.838463 ◽

2009 ◽

Author(s):

C. Dahmoune ◽

D. Barba ◽

F. Martin ◽

G. G. Ross

Keyword(s):

Luminescence Spectrum ◽

Depth Distribution ◽

Interference Effects ◽

Light Interference

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Artificial-light-interference effects on indoor optical wireless links employing DH-PIM

Journal of Optical Networking ◽

10.1364/jon.5.000103 ◽

2006 ◽

Vol 5 (2) ◽

pp. 103

Author(s):

Nawras M. Aldibbiat ◽

Z. Ghassemlooy

Keyword(s):

Artificial Light ◽

Interference Effects ◽

Optical Wireless ◽

Wireless Links ◽

Light Interference

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Study of Optical Coherence Theory in Measurement

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.568-570.71 ◽

2014 ◽

Vol 568-570 ◽

pp. 71-75

Author(s):

Shuai Kang ◽

Guang Yi Luo

Keyword(s):

Interference Pattern ◽

High Sensitivity ◽

Optical Path Difference ◽

Path Difference ◽

Optical Coherence ◽

Interference Effects ◽

Light Interference ◽

Light Waves ◽

Uniform Medium ◽

Transverse Electromagnetic

Light is a transverse electromagnetic wave, which has the volatility and particles. When light waves are added up in the spatial uniform medium, different conditions will produce interference effects in the meeting area. Optical path difference affects the distribution of the interference pattern directly, and the light interference pattern gives information of phase and amplitude in turn. Due to the measurement precision and extremely high sensitivity of response, the principle of optical coherence has been studied based on measuring the related physical quantity indirectly.

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Interference effects in the UV(VUV)-excited luminescence spectroscopy of thin dielectric films

Journal of Synchrotron Radiation ◽

10.1107/s0909049513002835 ◽

2013 ◽

Vol 20 (3) ◽

pp. 509-514 ◽

Cited By ~ 4

Author(s):

Evgeny Buntov ◽

Anatoly Zatsepin

Keyword(s):

Numerical Technique ◽

Dielectric Films ◽

Luminescence Spectroscopy ◽

Interference Effects ◽

Excitation Spectra ◽

Silica Films ◽

Transparent Films ◽

Light Interference ◽

Thin Dielectric Films ◽

Excited Luminescence

The problem of exciting UV and VUV light interference affecting experimental photoluminescence excitation spectra is analysed for the case of thin transparent films containing arbitrarily distributed emission centres. A numerical technique and supplied software aimed at modelling the phenomenon and correcting the distorted spectra are proposed. Successful restoration results of the experimental synchrotron data for ion-implanted silica films show that the suggested method has high potential.

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Aerosols, Aerodynamics, and Atomic Analysis

Applied Spectroscopy ◽

10.1366/000370278774331675 ◽

1978 ◽

Vol 32 (2) ◽

pp. 181-187 ◽

Cited By ~ 59

Author(s):

R. K. Skogerboe ◽

K. W. Olson

Keyword(s):

Salt Content ◽

Aerodynamic Characteristics ◽

Interference Effects ◽

Factors Affecting ◽

Transport Efficiency ◽

Microwave Induced Plasma ◽

Atomic Excitation ◽

Design Systems ◽

Atomic Analysis ◽

Suppression Effects

The suppression of atomic excitation in a microwave-induced plasma due to the presence of sodium has been studied for three different nebulization systems. Evaluation of the factors affecting this effect has shown that its occurrence depends on the nature of the analytical aerosol introduced and the aerodynamic features of the sample nebulization system. The results indicate that the sodium suppression effects observed can be largely accounted for by reductions in the analyte transport efficiency due to changes in the aerodynamic characteristics of the aerosol resulting from variations in the salt content of the nebulized solutions. It is further shown that these effects may be generally predicted on the basis of fluid mechanical principles and that these may be used to design systems to eliminate the interferences. The study underscores the essentiality of considering aerodynamic factors in formulating mechanistic explanations for interference effects in flames and plasmas.

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Use of the Magnetostatic Analogue In Electromagnetic Lens Engineering

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100068795 ◽

1970 ◽

Vol 28 ◽

pp. 360-361

Author(s):

John W. Coleman

Keyword(s):

Boundary Conditions ◽

High Performance ◽

Force Fields ◽

Optical Design ◽

Direct Conversion ◽

Design Engineering ◽

Design Data ◽

Scalar Potentials ◽

Geometric Elements ◽

At Will

In the design engineering of high performance electromagnetic lenses, the direct conversion of electron optical design data into drawings for reliable hardware is oftentimes difficult, especially in terms of how to mount parts to each other, how to tolerance dimensions, and how to specify finishes. An answer to this is in the use of magnetostatic analytics, corresponding to boundary conditions for the optical design. With such models, the magnetostatic force on a test pole along the axis may be examined, and in this way one may obtain priority listings for holding dimensions, relieving stresses, etc..The development of magnetostatic models most easily proceeds from the derivation of scalar potentials of separate geometric elements. These potentials can then be conbined at will because of the superposition characteristic of conservative force fields.

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Spacings and Intensities of Weak-Beam Dark Field Thickness Fringes

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100097685 ◽

1981 ◽

Vol 39 ◽

pp. 222-223

Author(s):

M. Avalos-Borja ◽

K. Heinemann

Keyword(s):

Selection Criterion ◽

Dark Field ◽

Dynamical Theory ◽

Bragg Condition ◽

Weak Beam ◽

Kinematical Theory ◽

Equal Thickness

Weak-beam dark field (WBDF) TEM produces narrowly spaced equal-thickness fringes in wedge-shaped crystals. Using non-systematic diffraction conditions, we have shown elsewhere that simple 2-beam kinematical theory (KT) calculations yield average fringe spacings that are for most practical purposes as satisfactorily accurate as the average spacings obtained from optimized multibeam dynamical theory (DT) calculations, As Fig. 1 shows, this result holds for deviations from the Bragg condition as low as 2x10-1 nm-1, and the differences between the results from the two calculational methods become increasingly insignificant for larger excitation errors. (Unless otherwise noted, all results reported here are for gold crystals, using the 200 beam at 100 KV; the DT calculations were made for 74 beams, using the selection criterion D as discussed in ref. [3]).

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Some Aspects of Exelfs Analysis in the Electron Microscope

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s1431927600000477 ◽

1980 ◽

Vol 38 ◽

pp. 118-119

Author(s):

D. E. Johnson ◽

S. Csillag

Keyword(s):

Fine Structure ◽

Electron Microscope ◽

Energy Loss ◽

Analytical Electron Microscopy ◽

Interference Effects ◽

Interatomic Distances ◽

X Ray ◽

Structure Information ◽

Microanalytical Technique ◽

Analytical Electron

Recently, the applications area of analytical electron microscopy has been extended to include the study of Extended Energy Loss Fine Structure (EXELFS). Modulations past an ionization edge in the energy loss spectrum (EXELFS), contain atomic fine structure information similar to Extended X-ray Absorbtion Fine Structure (EXAFS). At low momentum transfer the main contribution to these modulations comes from interference effects between the outgoing excited inner shell electron waves and electron waves backscattered from the surrounding atoms. The ability to obtain atomic fine structure information (such as interatomic distances) combined with the spatial resolution of an electron microscope is unique and makes EXELFS an important microanalytical technique.

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