Simulation and Experimental Observation of Double-slit Interference of Non-monochromatic Light
Weicheng Li, Jianhua Zeng and Jianrong Yang* Author for corresponding; e-mail address: zjhndkm@sina.com
Volume: Vol.47 No.5 (September 2020)
Research Article
DOI:
Received: 29 May 2019, Revised: -, Accepted: 24 Febuary 2020, Published: -
Citation: Li W., Zeng J. and Yang J., Simulation and Experimental Observation of Double-slit Interference of Non-monochromatic Light, Chiang Mai Journal of Science, 2020; 47(5): 1081-1091.
Abstract
Double-slit interference of non-monochromatic light with different central wavelengths was simulated using MATLAB, and related experiments were conducted using a sodium lamp, a halogen lamp and an light-emitting diode (LED) lamp. Through theoretical and experimental explorations of double-slit interference of non-monochromatic light, the characteristics of interference fringe distributions were intuitively demonstrated; the results can deepen the understanding of the interference mechanism of non-monochromatic light. Our study can also provide theoretical support for measuring engineering parameters with non-monochromatic light in interferometric engineering measurements.