Abstract
We describe a computer simulation method by which the complete near-field diffract pattern of an amplitude diffraction grating can be generated. The technique uses the method of iterative Fresnel integrals to calculate and generate the diffraction images. Theoretical background as well as the techniques to perform the simulation is described. The program is written in MATLAB, and can be implemented in any ordinary PC. Examples of simulated diffraction images are presented and discussed. The generated images in the far-field where they reduce to Fraunhofer diffraction pattern are also presented for a realistic grating, and compared with the results predicted by the grating equation, which is applicable in the far-field. The method can be used as a tool to teach the complex phenomenon of diffraction in classrooms.
| Original language | English |
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| Title of host publication | 14th Conference on Education and Training in Optics and Photonics, ETOP 2017 |
| Publisher | SPIE |
| Volume | 10452 |
| ISBN (Electronic) | 9781510613812 |
| DOIs | |
| Publication status | Published - 2017 |
| Event | 14th Conference on Education and Training in Optics and Photonics, ETOP 2017 - Hangzhou, China Duration: May 29 2017 → May 31 2017 |
Other
| Other | 14th Conference on Education and Training in Optics and Photonics, ETOP 2017 |
|---|---|
| Country/Territory | China |
| City | Hangzhou |
| Period | 5/29/17 → 5/31/17 |
Keywords
- amplitude diffraction gratings
- Computer simulation
- Fresnel integrals
- MATLAB
- near-field diffraction
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering