Laser Optics Lab
Holmarc's Model no: HO-ED-LOL-01 is designed for performing innovative experiments and carrying out optics related projects. It covers all the major topics such as Michelson interferometer, diffraction, opto-electronics, optical fiber, laser, polarization etc. Experimental setups can be easily assembled on the optical breadboard. Students get hands on experience and knowledge of the experiment.
The laser optics lab consists of a honeycomb optical breadboard with rigid supports and various opto - mechanical and optical components. The components are fixed to the readboard by M6 socket head cap screws.
Total internal reflection is an optical phenomenon that happens when a ray of light strikes a medium boundary at an angle larger than the critical angle with respect to normal to the surface. If the refractive index is lower on the other side of the boundary and the incident angle is greater than the critical angle, no light can pass through and all of the light is reflected. Laser Optics Lab is designed to perform more than 30 experiments using diode laser. Instruction manual with complete information and diagrams is provided along with the apparatus.
Experiment:
Michelson Interferometer
● Determination of wavelength of laser light
● Determination of refractive index of transparent materials
Diffraction
● Diffraction of light by single slit
● Diffraction of light by double slit
● Diffraction of light by transmission grating
● Diffraction of light by single wire
● Diffraction of light by cross wire
● Diffraction of light by fine wire mesh
● Diffraction of light by pinhole
● Particle size determination
● Use of meter scale ruling as reflection grating
● To find the groove spacing of a CD by using it as reflection grating
Laser
● Gaussian nature of the laser beam
● Beam spot measurements
● Divergence measurement
● Polarization nature of laser
Optical Fiber
● Numerical aperture measurements
● Determination of bending loss in multi-mode fibers
Opto-Electronics
● Characteristics of photo transistor
● Characteristics of photo diode
● Characteristics of light dependent resistor (LDR)
● Characteristics of solar cell
● Characteristics of light emitting diode (LED)
● Characteristics of opto - couple
Polarization
● Polarization of light and verification of Malus law
● Determination of refractive index of transparent material by finding Brewster's angle
Absorption
● Study of absorption of laser light in various filters
Total Internal Reflection
● Determination of refractive index of PMMA rod
● Determination of refractive index of liquids
Features:
● Easy to assemble experiment set up on an optical breadboard
● Rigid and portable support for optical breadboard
● Provides variety of components in a single package
● Ideal for the study of various properties of light
● Mechanical components are made out of anodized aluminum & stainless steel
● Precision optical components
Fig. Brewster’s Angle
Fig. Photo detector current as a function of the angular position of polarization plane of the analyzer
Malus Law
Scope of Delivery:
Instruction Manual
Allen keys
Thumb Screws
Glass Slides
Sample Powder
Meter Scale
CD