Reference: Lab Experiments Journal vol-4, No.1, Page-1
Basic Laser experiments
Model: BLW-2005
Experiment(s):
Determination of slit width
wavelength of Laser using mm scale as grating
wavelength of Laser using diffraction grating
Specifications
1. Optical bench
Length: 1 m Fixture: Three (for Laser source, grating/scale & screen) Material: Aluminium & cast iron
2. Semi-conductor diode Laser
Wavelength: 625 nm (Red) Power: External power supply, mains operated (Included) Base: Adjustable height Power: 2 mW
3. Adjustable slit
Maximum slit width: 5 mm Minimum slit width: 0.1 mm Slit length: 15mm
4. mm graduation scale
mm graduation on acrylic scale magnetically placed on base
5. 3 in 1 Grating
3 gratings of grating constant 100 LPI, 300 LPI & 600 LPI