PPT-UNIT II: light wave systems (6 L)

System architectures PointtoPoint links system considerations Design guide lines optical power budget rise time budget Long haul systems Objective To apply subject understanding in Link Design. Waves. Ch. 20 Sec. . 1 & 2. The Nature of . Waves & Properties of Waves. Waves. We often associate waves with bodies of water, but are there other situations where waves can exist?. Waves. wave. Almost all of our information on the heavens is derived from the light we see. We have returned samples from the Moon and a comet . Also obtained meteor samples. We have landed (with unmanned probes) on only a handful of planets and moons. Up to now we have been studying . geometric optics. . Today we will look at effects related to the . wave nature of light –. . physical optics. polarization. interference. thin film interference. Up to now we have been studying . geometric optics. . Today we will look at effects related to the . wave nature of light –. . physical optics. polarization. interference. thin film interference. Chapter 9: Electrons in Atoms and the Periodic Table. Learning Goals. Compare the wave and particle natures of light.. Define a quantum of energy, and explain how it is related to an energy change of matter.. S8P4b. Describe how the behavior of light waves is manipulated causing reflection, refraction, diffraction, and absorption.. Reflection. Reflection occurs when a wave strikes an object or surface and bounces off.. It wasn’t until the early 19. th. century that light was theorized to behave as something other than a stream of particles.. Isaac Newton proposed the particle theory of light.. Newton’s theory was used to explain the reflection and refraction of light.. *Combines wide field of magnification with asymmetric light distribution *Independently switched 2 x 7w *Large rectangular lens permits comfortable viewing for the comfort of both eyes *Rectangular By- Dr P M Patel. Introduction:. Interference and diffraction phenomena proved that light is a wave motion. These phenomena are used to find wavelength of light and they do not give any indication regarding the character of waves.. GR100020. 1. Index. What is light?. Cool facts about light. How did I make the single slit and double slit experiment?. Observations. Results. Why did we observe the results we did?. If light is proved to be only wave-natured, then why do people also refer to light to be particle-natured?. Associate Professor in Physics. Post Graduate Govt. College Sector-11. Chandigarh. Interference. The term interference refers to phenomenon involving superposition of waves leading to a modification of their intensity in the region of superposition.. PROPERTIES OF LIGHT. Light are energy. It travel in the speed of . m/sec . It has dual nature of both wave and particles.. . As wave-. . It propagate itself through a disturbance of electric and magnetic field being perpendicular to each other.. Introduction to Optics. Overview. The Great Debate. What is light?. Properties of light. The wave-like model. Theories of . colour. Show me the light!. A historical debate: . Optics. Optics: is the study of the . What is light? Particle, wave, etc.. How is light created?. How fast does it travel? (infinite vs. finite speed). Intromission vs. Emission & speed of light. Empedocles (~450 BC) argued that light was something in motion and took time to travel. Argued light was emitted by our eyes..