How to Produce Coherent Sources?
Since, the availability of Coherent Source of light is not so easy, there are two ways with the help of which we can produce coherent sources of light:
By Dividing the Wavefront
Coherent Sources can be made by splitting the wavefront. For this purpose we can use different mirrors, lenses or prism. We can also use method’s like, Young’s Double Slit Expriment, Fresnel Method etc. to achieve the same
By Dividing the Amplitude
Dividing the amplitude is another method of producing coherent sources of light. Amplitude is divided by separating the amplitude of the incident beam of light into different parts using partial reflection and refraction.
Coherent Source
Coherent Source is the source of waves that produce waves with the same frequency, same wavelength, and constant phase or constant phase difference. Coherent Sources are important in wave optics as they provide conditions for interference of waves to produce highly focussed and directional beam of light.
In this article, we will learn about coherent source, its types, characteristics, how to produce coherent source, its application and difference between coherent and incoherent source in detail.