No. Don't worry about amplitude, just work with the irradiance -- which is different than amplitude.Shackleford said:Whenever there is natural light, you always assume the amplitude is 1/2 of the incident light amplitude after the first polarizer, right?
If I may requote the stated problem, it will be easier for us to follow what is going on:http://i111.photobucket.com/albums/n149/camarolt4z28/a1.png
http://i111.photobucket.com/albums/n149/camarolt4z28/IMG_20111030_161325.jpg
In an ideal polarizer, the irradiance of natural light is 1/2 after transmission through it. However, for real polarizers HN-38 and HN-32, the irradiance will be less than 1/2.Natural light having a flux density I0 is incident on a sheet of HN-38. After the light passes through the sheet of HN-38, it transmits through a sheet of HN-32 whose axis of transmission makes an angle of 30 degrees with respect to the transmission axis of the first sheet. Find an expression for the irradiance of the beam after it emerges from the second polarizer.
Polarization in modern optics refers to the direction of the electric field of a light wave. Light waves can be unpolarized, meaning the electric field oscillates in all directions, or polarized, meaning the electric field oscillates in a specific direction. This direction can be horizontal, vertical, or anywhere in between.
Polarization is used in modern optics for a variety of purposes, including reducing glare, enhancing contrast, and creating 3D images. It is also used in technologies such as LCD screens, polarizing filters, and polarimeters.
Polarization can be measured using a polarimeter, which is an instrument that measures the angle of polarization of a light wave. Other methods of measuring polarization include using polarizing filters and observing the intensity of light passing through them.
Linear polarization refers to the electric field of a light wave oscillating in a single plane, while circular polarization refers to the electric field rotating in a circular motion. Linear polarization can be vertical or horizontal, while circular polarization can be clockwise or counterclockwise.
Polarization can affect the colors we see by reducing glare and enhancing contrast. This can make colors appear more vibrant and defined. Polarization can also be used to create 3D images, which can enhance the perception of color depth and saturation.