8 Questions
What is the difference between unpolarised light and polarised light?
Unpolarised light has random orientation of electric field vibrations, while polarised light has vibrations in a specific direction.
What is the main characteristic of laser light?
High intensity and narrow spectrum
How is plane-polarised light produced?
By passing unpolarised light through a polariser
What is the process of population inversion in lasers?
It involves more atoms in the higher energy state than in the lower energy state
What is one of the main components of a laser?
Optical cavity
What is optical activity?
The ability of a material to rotate the plane of polarisation of light passing through it
What is the function of a half-shade polarimeter?
To determine the optical rotation caused by chiral substances
In holography, what is the process used for recording and reconstructing images?
Interference pattern
Test your knowledge on interferometry, measurement of distances using interference patterns, calibration of geodetic equipment, and metrologically traceable scales.
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