The simplest way to describe light is in terms of rays This is called ray optics or geometric optics All of geometric optics can be based on Fermat's
Propagation of waves in different media: elastic waves in a spring and in a solid rod, Page 2 2 pressure waves in a column of gas, transverses waves on a
In optical region, light has a wavelength of about half a micrometre two water waves, and at a particular point, the phase difference between
17 nov 2005 · 1 Oscillations in Mechanical Systems 1 1 Simple Harmonic Oscillator
Lasers: Einstein's theory of matter radiation interaction and A and B coefficients; amplification of light by population inversion, different types of lasers:
What is the difference between the behavior of sound waves and light waves in this case? The answer is that light has very short wavelengths and acts like a ray
Wave Optics • In part 1 we saw how waves can appear to infinitesimal slit in a plate Light of different colours does not interfere
the world of geometrical optics Plane wave is a series of parallel waves moving in one direction We can do the sum in a slightly different way
5 Interference of Light Waves Coherence: If two wave sources are “coherent” they always have the same phase difference between them [If they are in
on wave optics Ray optics is based on rectilinear propagation of light, and deals with any refracted wave and the wave will undergo what is known as total
All of geometric optics can be based on Fermat's Principle a) Fermat's Principle A wave is a field that describes how a physically measurable quantity travels through Distinguish the following properties of waves: linear ←→ non-linear
What is the difference between the behavior of sound waves and light waves in this case? The answer is that light has very short wavelengths and acts like a ray
Textbooks: Optics, 4th edition, by Eugene Hecht, published by Addison-Wesley Publishing Company 4 Brief Introduction In 1817, Young proposed that light is transverse wave In 1851 Fig 1 3 A progressive wave at three different time
Light waves of different wavelengths propagate in vacuum with equal Optics is a part of physics that studies the electromagnetic waves of optical range
Wave optics is a study concerned with phenomena that cannot be adequately phase difference between the two waves at P depends on their path difference
The quantization model assumes that the energy of a light wave is present in of a different medium or if the optical properties of the medium are nonuniform