Reflectometry
This is a reasonable minimum thickness measureable by a reflectometer.
This is the minimum thickness measurable by a KLA SE machine.
What is zero angstroms?
It is created by reflections off a flat surface with no phase shift between S and P polarizations.
What is linearly polarized light?
This is how one might make blurry five pointed stars in the background of a photograph.
What is photograph something with point sources of light in the background at wide aperture while holding a star shaped aperture in front of the lens?
This property is common between soap bubbles and oil slicks.
What is thin film interference?
The kind of interference you expect if the difference in optical path length is 2.5 λ
What is destructive interference?
This combination of optical elements will create circularly polarized light.
What is a linear polarizer and a quarter wave plate.
This describes a distinctive property of the mineral calcite.
What is birefringence?
The etymology of and the English word used to discribe out of focus elements in the background of an image.
This is used to break the light into different wavelengths in broadband thin film measurement devices built by KLA.
What is a diffraction grating?
This combination of layers creates a phase shift of π at a reflective interface.
What is a lower index of refraction transitioning into a higher index of refraction?
Ψ tells us this about the ellipticity of polarization.
What is the ratio of P reflectivity to S reflectivity of the surface?
or
What is the ratio of P intensitiy to S intensity in the polarization of light?
This is what the "O" and "E" represent in the outgoing beams from a Rochon.
What are "ordinary" and "extraordinary"?
This change in aperture will create a larger depth of field.
What is changing to a smaller aperture? (Larger numerical f number)?
This kind of lamp is used by KLA broad spectrum reflectometers and ellipsometers.
What is a xenon arc lamp?
This equation represents the reflectance off of a single interface between two layers of different indexes of refraction.
What is
r_ij = (n_j-n_i)/(n_j+n_i)
?
cosΔ tells us this about the ellipticity of polarization.
What is the phase of the maximum intensity of the S polarization?
This is the reduction in magnitude of the electric field from one filter to the next when two polarizing filters are rotated by 45 degrees.
What is 1/√2?
This is the distance in front of the focal plane of the image that will make a similar circle of confusion as 1 mm behind the focal plane.
This is what "dichroic" means.
What is "capable of breaking light into two different broadband spectra?"
A spectrum of a film that is much thicker than another will show this.
What is more peaks?
This Jones matrix represents the reflectivity of the wafer.
What is
| R_p 0 |
| 0 R_s |
?
This is where to look in the sky to see polarized light.
What is 90 degrees away from the location of the sun?
This is the size of a circle of confusion made on the focal plane by a tiny christmas light 50.0 cm behind a perfectly focused foreground element 1.00 m from a 50 mm lens at f/1.4.
What is I have not had the time to work this one out?
This mathematical tool can be used to represent an optical component that affects polarization.
What is a Jones matrix?