LOYOLA COLLEGE (AUTONOMOUS), CHENNAI – 600 034
... 2. Two lenses of focal lengths 8 cm and 6 cm are placed at a certain distance apart. Calculate the distance between the lenses if they form an achromatic combination. 3. Explain the formation of colours in thin film. 4. Light of wavelength 6000 Å falls normally on a thin wedge shaped film of µ=1.5, ...
... 2. Two lenses of focal lengths 8 cm and 6 cm are placed at a certain distance apart. Calculate the distance between the lenses if they form an achromatic combination. 3. Explain the formation of colours in thin film. 4. Light of wavelength 6000 Å falls normally on a thin wedge shaped film of µ=1.5, ...
Materialanalytik Praktikum Ellipsometry B508
... dielectric material? Since answering this question in detail would exceed the time limitations of this lab course, we will give a qualitative description of the processes to give a better understanding of the experiment and to point out how this gained knowledge should influence the execution of our ...
... dielectric material? Since answering this question in detail would exceed the time limitations of this lab course, we will give a qualitative description of the processes to give a better understanding of the experiment and to point out how this gained knowledge should influence the execution of our ...
3.7 Dielectrics and Optics 3.7.1 Basics
... The incident beam also has a certain amplitude of the electric field (and of the magnetic field, of course) which we call E0. The intensity Ii of the light that the incident beams embodies, i.e. the energy flow, is proportional to E02 - never mix up the two! The reflected beam follows one of the bas ...
... The incident beam also has a certain amplitude of the electric field (and of the magnetic field, of course) which we call E0. The intensity Ii of the light that the incident beams embodies, i.e. the energy flow, is proportional to E02 - never mix up the two! The reflected beam follows one of the bas ...
1. Wave Nature of Light
... What is the reflection coefficient and reflectance at normal incidence when a light beam traveling in air is incident on an air/silica interface? How do these compare with part (c) and what is your conclusion? 4. Antireflection (AR) coating a Consider three dielectric media with flat and parallel bo ...
... What is the reflection coefficient and reflectance at normal incidence when a light beam traveling in air is incident on an air/silica interface? How do these compare with part (c) and what is your conclusion? 4. Antireflection (AR) coating a Consider three dielectric media with flat and parallel bo ...
5.2.7 Specialities
... All we need to do to cover all the effects of electric and magnetic fields on optics is to include the forces on the electron they add in addition to the force produced by the electric field of the light wave. The equation above for the Faraday effect hints at that. The new equations, however, are n ...
... All we need to do to cover all the effects of electric and magnetic fields on optics is to include the forces on the electron they add in addition to the force produced by the electric field of the light wave. The equation above for the Faraday effect hints at that. The new equations, however, are n ...
Reflection and Refraction
... Reflection and Refraction When light passes from one medium to another (e.g. from air to water) it will generally experience both reflection and refraction Reflection is the portion of the light that does not penetrate the second medium but bounces off of the surface Refraction is the bending of ...
... Reflection and Refraction When light passes from one medium to another (e.g. from air to water) it will generally experience both reflection and refraction Reflection is the portion of the light that does not penetrate the second medium but bounces off of the surface Refraction is the bending of ...
An introduction to Optics
... incidence θ1 and angle of refraction θ2 is equivalent to the ratio of phase velocities (v1 / v2) in the two media, or equivalently, to the opposite ratio of the indices of refraction (n2 / n1): In optics, refraction is a phenomenon that often occurs when waves travel from a medium with a given refr ...
... incidence θ1 and angle of refraction θ2 is equivalent to the ratio of phase velocities (v1 / v2) in the two media, or equivalently, to the opposite ratio of the indices of refraction (n2 / n1): In optics, refraction is a phenomenon that often occurs when waves travel from a medium with a given refr ...
konsta1
... gyrotropy [1,2]. Two circular polarized waves propagate in absorptive isotropic media and in anisotropic crystals in the direction of optical axis. That results in rotation of the plane of polarization and circular dichroism. In directions different from optical axis two elliptically polarized waves ...
... gyrotropy [1,2]. Two circular polarized waves propagate in absorptive isotropic media and in anisotropic crystals in the direction of optical axis. That results in rotation of the plane of polarization and circular dichroism. In directions different from optical axis two elliptically polarized waves ...
14_04_2014 - IB Phys..
... • The light that enters an optic fibre travels down the length of the fibre and the arrival of light is registered by a photodiode • In the absence of any light, falling on the photodiode, the current is zero • When light of a specific wavelength falls on the photodiode, a current flows. The magnitu ...
... • The light that enters an optic fibre travels down the length of the fibre and the arrival of light is registered by a photodiode • In the absence of any light, falling on the photodiode, the current is zero • When light of a specific wavelength falls on the photodiode, a current flows. The magnitu ...
Announcements
... reflected at the surface • Note that the refracted angle is not equal to the incident angle • In fact, the angles are related to the velocities of light in the two media Æ sin θ1/sin θ2 = v1/v2 ...
... reflected at the surface • Note that the refracted angle is not equal to the incident angle • In fact, the angles are related to the velocities of light in the two media Æ sin θ1/sin θ2 = v1/v2 ...
4.6 Optical Fibres
... Lucite block as the fibre. Refer to figure 4.28 to measure the angles of incidence and refraction for a laser beam passing through the material. Mark out the angles on a piece of paper placed underneath the block and use Snell's Law of Refraction to calculate the refractive index of the material. ...
... Lucite block as the fibre. Refer to figure 4.28 to measure the angles of incidence and refraction for a laser beam passing through the material. Mark out the angles on a piece of paper placed underneath the block and use Snell's Law of Refraction to calculate the refractive index of the material. ...
Birefringence in Optical Fibers: Applications
... As discussed in the previous chapter, the so-called single-mode fibers in fact support two modes simultaneously, which are orthogonally polarized. In an ideal circular-core fiber, these two modes will propagate with the same phase velocity; however, practical fibers are not perfectly circularly symm ...
... As discussed in the previous chapter, the so-called single-mode fibers in fact support two modes simultaneously, which are orthogonally polarized. In an ideal circular-core fiber, these two modes will propagate with the same phase velocity; however, practical fibers are not perfectly circularly symm ...
Refractive index
... When light is refracted into the optically sparser medium, the refractive angle can be 90 degrees for certain incident angle. This incident angle is called critical and for angles of incidence above the critical angle all light is reflected. Such effect is called the total reflection. The value of t ...
... When light is refracted into the optically sparser medium, the refractive angle can be 90 degrees for certain incident angle. This incident angle is called critical and for angles of incidence above the critical angle all light is reflected. Such effect is called the total reflection. The value of t ...
Waves & Oscillations Physics 42200 Spring 2014 Semester Lecture 39 – Review
... (a) Write the Mueller matrices for each component (b) Calculate the intensity of transmitted light if the incident light is unpolarized (c) Calculate the intensity of transmitted light if the incident light is left circular polarized (d) Is the system symmetric? That is, is the intensity of transmit ...
... (a) Write the Mueller matrices for each component (b) Calculate the intensity of transmitted light if the incident light is unpolarized (c) Calculate the intensity of transmitted light if the incident light is left circular polarized (d) Is the system symmetric? That is, is the intensity of transmit ...
Chapter 11. Photoelasticity. Introduction Sample problems 11
... Assuming coordinate axis x-y that are respectively at 45o from a vertical beam of linearly polarized light incident on a half wave plate with the fast axis making an angle of 450 with the vertical axis. Get the expression of the emerging wavefronts and the type of polarization. Solution to 11-S1 Fig ...
... Assuming coordinate axis x-y that are respectively at 45o from a vertical beam of linearly polarized light incident on a half wave plate with the fast axis making an angle of 450 with the vertical axis. Get the expression of the emerging wavefronts and the type of polarization. Solution to 11-S1 Fig ...
revision_foundation_..
... • If a radio wave is transmitted from a vertical aerial then the wave will have vertical polarisation and any receiving aerial must also be positioned vertically. • The main transmitters in the U.K. send out signals which are horizontally polarised. • Many areas of the country are now served by mixe ...
... • If a radio wave is transmitted from a vertical aerial then the wave will have vertical polarisation and any receiving aerial must also be positioned vertically. • The main transmitters in the U.K. send out signals which are horizontally polarised. • Many areas of the country are now served by mixe ...
Electromagnetic Waves - University of Toronto Physics
... If the light that strikes the polarizing filter is already polarized, then the amount of light transmitted depends on the angle between the polarization of the incident light, and the polarization axis of the filter. In any case, the light that is transmitted by a polarizing filter is always polariz ...
... If the light that strikes the polarizing filter is already polarized, then the amount of light transmitted depends on the angle between the polarization of the incident light, and the polarization axis of the filter. In any case, the light that is transmitted by a polarizing filter is always polariz ...
Birefringence
Birefringence is the optical property of a material having a refractive index that depends on the polarization and propagation direction of light. These optically anisotropic materials are said to be birefringent (or birefractive). The birefringence is often quantified as the maximum difference between refractive indices exhibited by the material. Crystals with asymmetric crystal structures are often birefringent, as are plastics under mechanical stress.Birefringence is responsible for the phenomenon of double refraction whereby a ray of light, when incident upon a birefringent material, is split by polarization into two rays taking slightly different paths. This effect was first described by the Danish scientist Rasmus Bartholin in 1669, who observed it in calcite, a crystal having one of the strongest birefringences. However it was not until the 19th century that Augustin-Jean Fresnel described the phenomenon in terms of polarization, understanding light as a wave with field components in transverse polarizations (perpendicular to the direction of the wave vector).