Lecture

Reflection and Refraction in Transparent Matter

Graph Chat

Chat with Graph Search

Ask any question about EPFL courses, lectures, exercises, research, news, etc. or try the example questions below.

DISCLAIMER: The Graph Chatbot is not programmed to provide explicit or categorical answers to your questions. Rather, it transforms your questions into API requests that are distributed across the various IT services officially administered by EPFL. Its purpose is solely to collect and recommend relevant references to content that you can explore to help you answer your questions.

In course

PHYS-201(d): General physics : electromagnetism

The topics covered by the course are concepts of electromagnetism, properties of waves, and fluid mechanics. ...

Description

This lecture covers the laws of reflection and refraction of electromagnetic waves in transparent matter, including boundary conditions, attenuated waves, and the Snell's law. It explains how incident waves interact with dielectric slabs, leading to partial internal reflection. The lecture also delves into the wave and ray pictures of reflection and refraction, emphasizing the importance of refractive indices and polarization effects in materials.

Instructor

Dirk Grundler

Official source

Ontological neighbourhood

Physics

Optics: Wave polarization

Health sciences

Ophthalmology: Topics in ophthalmology

Related concepts (32)

Specular reflection

Specular reflection, or regular reflection, is the mirror-like reflection of waves, such as light, from a surface. The law of reflection states that a reflected ray of light emerges from the reflecting surface at the same angle to the surface normal as the incident ray, but on the opposing side of the surface normal in the plane formed by the incident and reflected rays. This behavior was first described by Hero of Alexandria (AD c. 10–70). Later, Alhazen gave a complete statement of the law of reflection.

Diffuse reflection

Diffuse reflection is the reflection of light or other waves or particles from a surface such that a ray incident on the surface is scattered at many angles rather than at just one angle as in the case of specular reflection. An ideal diffuse reflecting surface is said to exhibit Lambertian reflection, meaning that there is equal luminance when viewed from all directions lying in the half-space adjacent to the surface.

Dielectric

In electromagnetism, a dielectric (or dielectric medium) is an electrical insulator that can be polarised by an applied electric field. When a dielectric material is placed in an electric field, electric charges do not flow through the material as they do in an electrical conductor, because they have no loosely bound, or free, electrons that may drift through the material, but instead they shift, only slightly, from their average equilibrium positions, causing dielectric polarisation.

S wave

NOTOC In seismology and other areas involving elastic waves, S waves, secondary waves, or shear waves (sometimes called elastic S waves) are a type of elastic wave and are one of the two main types of elastic body waves, so named because they move through the body of an object, unlike surface waves. S waves are transverse waves, meaning that the direction of particle movement of a S wave is perpendicular to the direction of wave propagation, and the main restoring force comes from shear stress.

P wave

A P wave (primary wave or pressure wave) is one of the two main types of elastic body waves, called seismic waves in seismology. P waves travel faster than other seismic waves and hence are the first signal from an earthquake to arrive at any affected location or at a seismograph. P waves may be transmitted through gases, liquids, or solids. The name P wave can stand for either pressure wave (as it is formed from alternating compressions and rarefactions) or primary wave (as it has high velocity and is therefore the first wave to be recorded by a seismograph).

Related lectures (64)

Electromagnetic Waves in Materials: Reflection and Refraction

Explores electromagnetic waves in materials, focusing on reflection, refraction, and boundary conditions for transparent solids.

Interaction of E-M Waves with Matter: Transmission, Absorption, Reflection

Explores how electromagnetic waves interact with matter, emphasizing transmission, absorption, and reflection.

Versatile EM Wave Description

Summarizes EM chapters, emphasizing wave description, reflection laws, and light intensity calculations.

Reflection and Refraction at Dielectrics: Boundary Conditions

Explores reflection and refraction at dielectrics and the application of boundary conditions.

E-M Wave Propagation in Materials: Loss-less vs. Lossy