Reference: Lab experiments journalvol-5,No.1, Page-19
Laser diffraction by rectangular aperture
Model: LDR-201
Experiment(s):
Determination of wavelength of laser
Determination of width (and breath) of rectangular aperture
Specifications
1. Laser
Type: Semiconductor diode Laser Wavelength: 625 nm (Red) Output power: 3 mW Mount: Cast iron base with levelling screw Power supply Output: Suitable for 3 mW & 5 mW semiconductor Lasers Rated Input: 220 V/50 Hz or 110 V/60 Hz Mains cord: 2 pin
2. Light detecting microscope
Bed travel: 100 mm (one axis) Resolution: 0.001 mm Output: Displayed on meter in mm Sensor: Photo detector Base: Cast iron
3. Rectangular hole slit
Mount: Suitable to be fitted on Laser Hole dimension : 1 to 2 mm