Measurement of Diffraction Intensity lab Experiment

This diffraction experiment system is designed to study Fraunhofer diffraction and analyze light intensity distribution using computer-based image acquisition. It enables students to investigate diffraction patterns produced by single slits, multiple slits, circular apertures, and rectangular apertures while accurately measuring diffraction intensity and slit dimensions.

Experiments :

• Study Single-Slit, Multiple-Slit, Circular Aperture, and Rectangular Aperture Diffraction and Observe the Variation of Diffraction Intensity Under Different Experimental Conditions.
• Record the Relative Intensity and Intensity Distribution of Single-Slit Diffraction Using a Computer and Calculate the Slit Width from the Diffraction Pattern.
• Observe the Intensity Distribution of Diffraction from Multiple Slits, Rectangular Apertures, and Circular Apertures.
• Observe Fraunhofer Single-Slit Diffraction.
• Measure and Analyze Light Intensity Distribution.

He-Ne Laser :

• 1.5 mW @ 632.8 nm

Single Slit :

• Adjustable from 0–2 mm
• Precision: 0.01 mm

Image Measurement Range :

• 0.03 mm slit width
• 0.06 mm slit spacing

Projective Reference Grating :

• 0.03 mm slit width
• 0.06 mm slit spacing

CCD System :

• 0.03 mm slit width
• 0.06 mm slit spacing

Macro Lens :

• Silicon photocell

AC Power Voltage :

• 200 mm

Measurement Accuracy :

• ±0.01 mm