Introduction

Physical optics takes the wave nature of light as its main research object, and studies the propagation, interference, diffraction, polarization and other properties of light from the two perspectives, which are electromagnetic wave theory and Fourier analysis.This experiment studies the interference rules of light based on the principle of wave superposition and discusses the coherence of light; elaborates on the wave nature of light around diffraction and studies the diffraction of light based on reality; studies the propagation characteristics of light in crystals and the effect of polarizing elements on light. This experiment is a professional supporting experiment with a large number of practical applications closely following related courses such as "Engineering Optics" and "Physical Optics" in the optoelectronics major.

Experiments

Polarization experiment:

Testing experiments of laser polarization characteristics; testing of linearly polarized light and Marius' law experiments; experiments on the use of half-wave plates; experiments on the use of polarizing beam splitting cubes; use of quarter-wave plates and experiments on circularly polarized light experiments; test experiments for circularly polarized light; comprehensive experiments on polarizing devices - "optical circulator" experiments; experiments on the application of polarization phenomena in 3D displays;

Interference experiment:

Structure of Young's double-slit interference experiment; laser wavelength experiment by Young's double-slit interference measurement ; measure the effect of double-slit spacing on stripe spacing; Structure of Mach-Zehnder interferometer experiment; experiment on the effect of polarization direction and light intensity ratio; experiments on the influence of phase difference on interference fringes;   Structure of Taymann-Green interferometer experiment; experiments on the influence of light source monochromaticity on interference; experiments on measuring spectral line width of semiconductor lasers; experiments on qualitative detection of defects in optical devices;experiment on quantitative detection of optical instrument quality using phase-shifting interferometry.

Diffraction experiment:

Fresnel diffraction experiment; Fraunhofer diffraction experiment; Fraunhofer diffraction experiment to measure filament diameter; single-slit, double-slit, multi-slit diffraction experiment; transmission grating diffraction experiment.

Experimental Knowledge

Polarizer, wave plate, linearly polarized light, circularly polarized light, generation and detection of polarized light, Marius' law, 3D stereoscopic technology, optical circulator, Mach-Zehnder interference, Tymann-Green interference, coherence conditions, spectral line width , interference fringe visibility, phase shift interferometry, coherence length, spatial coherence, temporal coherence, Fresnel diffraction, Fraunhofer diffraction, filament diffraction, grating diffraction.

Typical Testing

                Morphology Detection                               Multi-Slit Franhofer Diffraction

             Phase Difference Controller                             Tunable Coherence Length Laser