Dissertation > Excellent graduate degree dissertation topics show

Research of Sub-Diffraction in Optical Diffraction Field

Author: ZongJinGuang
Tutor: BaiZhiMing
School: Northeastern University
Course: Optics
Keywords: sub-diffraction Huygens’s principle wavelet source superposition principle parallel computing
CLC: O436.1
Type: Master's thesis
Year: 2009
Downloads: 33
Quote: 0
Read: Download Dissertation

Abstract


The term, so-called Sub-diffraction, is a description of the special method used in the research of optics diffraction. The research is based on the Huygens’s principle and the superposition principle. The points on the wave front, according to Huygens’s principle, can serve as new wave sources to emit the spherical wavelets, which constitute the next wave front.In this thesis, the regularity that the filed strength of the filed point in the diffraction filed changes with time will be analyzed in detail. A simulation experiment based on computer technology has been carried out, and the result given by the simulation experiment confirms that the filed strength of the filed point in the diffraction filed, a simple harmonic vibration source, changes with time in sine law. That is, the construction about wavelet in Huygens’s principle has been tested theoretically and experimentally to be rational and correct.Further more, the filed points of the screen in the diffraction filed will serve as the wavelet sources and all the wavelets from the wavelet sources will superpose together on the next screen. That process will be called in this thesis as a sub-diffraction which is divided into the strict wavelet source sub-diffraction and non-strict wavelet source sub-diffraction according to the different approaches in the research. The analysis of two sub-diffraction processes indicates that the sub-diffraction gives the same filed strength distribution, compared with the direct diffraction, which has been confirmed by the subsequent simulation experiment.Otherwise, in this thesis another valuable outcome will be presented, that is, the information of the hole if the data is processed properly will be showed on the second screen in the research process of the non-strict wavelet source diffraction.

Related Dissertations

  1. The Research on Feature Selection for Data Stream,TP311.13
  2. Research and Design of a High-Performance Scalable Public Key Cryptographic Coprocessor,TN918.1
  3. Research on Video Compression Algorithm Based on Multi-core Computing Platform,TN919.81
  4. Research of Finite Element Method on GPU,O241.82
  5. Numerical Simulation of Radiofrequency Waves in Magnetized Plasma,TL612
  6. Research on Parallel Method for Image Denoising Via Sparse Representations,TP391.41
  7. ASIC Design and Applications of Stream Cipher Based on Chaos,O415.5
  8. Shimoji different geographical pipe pipe arrangement within the group of soil temperature,TU831
  9. Parallel computing for data-intensive reconfigurable linear array processor architecture design,TP332
  10. PVC alloy mechanical relaxation behavior research,TQ325.3
  11. Application of Fractional Differential Rheological Model to Dynamic Mechanical Properties of Vulcanized Rubber,O345
  12. Studies on Productivity of of Horizontal Branch Well,TE328
  13. Physical Aging of Polymers Studied by the Fractional Model,O631.3
  14. Analysis and Research for Critical Problems in the Construction Process of Concrete Filled Steel-tube Tied-arch Bridge,U445.4
  15. The Transfer of Arbitrary Two Qubit Pure State in the Spin Chains,O413
  16. The Existence of the Solution for the Dissipative Nonlinear Wave Equation in Odd Multi-dimensions,O175.2
  17. Domain Decomposition Algorithm for Compact Difference Schemes of Heat Equation,O241.82
  18. A Finite Element Domain Decomposition Algorithm for Parabolic Equations,O241.82
  19. Parallel K-Means clustering method and its resume data,TP311.13
  20. GVF-Snake model and its pipeline processing method,TP391.41
  21. Research on Survey Technique for the Corrosion Protection Status of Submarine Pipeline,TG174

CLC: > Mathematical sciences and chemical > Physics > Optics > Physical optics ( wave optics ) > Interference and diffraction
© 2012 www.DissertationTopic.Net  Mobile