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In our study of thin film interference we have seen that when light strikes a surface...
(25 points) The figure below shows a thin film, of a transparent material of thickness d...
(25 points) The figure below shows a thin film, of a transparent material of thickness d and index of refraction nfwhere n2 > nf > n1. Monochromatic light of wavelength 600nm is incident onto the thin film. a. For what three smallest film thicknesses, d, will reflected light-rays-1 and -2 interfere constructively? b. For what three smallest film thicknesses, d, will reflected light-rays-1 and -2 interfere destructively?
In thin film interference, an (a) incident wave reflects off of the front interface of the...
In thin film interference, an (a) incident wave reflects off of the front interface of the thin film and (b) refracts into the thin film.This refracted wave then (c) reflects off of the back interface of the thin film yet also (d) transmits through the film.This reflected wave then (e) refracts back through the front interface of the thin film in order to interfere with the wave that initially reflected off of the front interface.Apply the Fresnel equations that we...
Monochromatic light of wavelength 560 nm strikes a thin layer of soap, which has an index...
Monochromatic light of wavelength 560 nm strikes a thin layer of soap, which has an index of refraction of 1.4 and rests on a bathroom tile. (a) If the layer of soap is 700 nm thick, does constructive interference, destructive interference, or partial interference occur when the light strikes the surface close to the normal? (b) What is the minimum thickness of soap that would result in no (or minimal) reflection from the surface? (100 nm)
10.A narrow beam of white light is incident normally on the surface of a triangular silicate...
10.A narrow beam of white light is incident normally on the surface of a triangular silicate flint glass prism with one angle of 90. The index of refraction for violet light is 1.66 and for red light is 1.61. The angle in the prism is equal to 30° of glass. a. On the diagram below show an approximate sketch for the refracted light from the opposite face of the prism. Air B White light 780° Glass Calculate angular separation between...
Thin Film Interference Problems 1. Oil (n=1.25) floats on water. What is the minimum thickness of...
Thin Film Interference Problems 1. Oil (n=1.25) floats on water. What is the minimum thickness of oil in a region where it appears green ( = 525 nm)? (Ans: 210 nm) 2. A 500 nm thick layer of oil (n = 1.25) floats on water. What wavelengths of light in the visible range (400 nm to 700 nm) are maximally reflected? (Ans: 417 nm, 625 nm) 3. Athin film of acetone (n = 1.25) coats a thick glass plate (n...
Wave Optics CHAPTER 17 17-5 17.4 Thin-Film Interference oure shows a wave transmitted from air through...
Wave Optics CHAPTER 17 17-5 17.4 Thin-Film Interference oure shows a wave transmitted from air through a thin oil film on water. The film has a kness t oil/2, where Noil is the wavelength of the light while in the oil. 2. The fi nicna n1 1.00 n2 1403 1.33 a. Referring to the indices of refraction shown on the figure, indicate at each boundary with a Y (yes) or N (no) whether the reflected wave undergoes a phase change...
I I know that the thickness = lambda/(2nsin 30) BUT why? I've also attached some notes I have! (P...
I
I know that the thickness = lambda/(2nsin 30) BUT why?
I've also attached some notes I have!
(Please explain using diagram and words for me to rate
the answer)
We were unable to transcribe this imageThin-Film Interference When light is incident on a thin transparent film, the light waves reflected from the front and back surfaces interfere. For near-normal incidence, the wavelength con ditions for maximum and minimum intensity of the light reflected from a film in air are...
The default setting is a thin film of glass(n = 1.5) with air (n = 1)on...
The default setting is a thin film of glass(n = 1.5) with air (n
= 1)on both sides.The starting wavelength is 652 nm and the
starting thickness is 544 nm. Use these starting values for this
next set of questions.
1. Is there a phase shift on the front (left) interface? On the
back (right) interface in the simulation?Justify why there is/isn’t
a phase shift at each interface.
2. How does the wavelength in the film (glass) compare to the...
A thin film of olive oil (index of refraction noil = 1.46) of thickness d is...
A thin film of olive oil (index of refraction noil = 1.46) of thickness d is floating on the surface of still water (index of refraction nwater = 1.33). The index of refraction of air is nair = 1.00. A red laser of wavelength λ=600nm=6.00×10−7m is incident on the film of olive oil from above as shown. The laser reflects at the air-oil and oil-water interfaces and interferes with itself. Answer the following questions: 1. What does the thickness d...
Monochromatic light of wavelength, λ is traveling in air. The light then strikes a thin film...
Monochromatic light of wavelength, λ is traveling in air. The light then strikes a thin film having an index of refraction n1 that is coating a material having an index of refraction n2. If n2 is larger than n1, what minimum film thickness will result in maximum reflection of this light? A B C D E F G H I J A λ/n1 B λ/4 C λ D λ/(4n2) E λ/n2 F λ/(2n1) G λ/(4n1) H λ/2 I λ/(2n2) J...
10.A narrow beam of white light is incident normally on the surface of a triangular silicate flint glass prism with one angle of 90. The index of refraction for violet light is 1.66 and for red light is 1.61. The angle in the prism is equal to 30° of glass. a. On the diagram below show an approximate sketch for the refracted light from the opposite face of the prism. Air B White light 780° Glass Calculate angular separation between...
Thin Film Interference Problems 1. Oil (n=1.25) floats on water. What is the minimum thickness of oil in a region where it appears green ( = 525 nm)? (Ans: 210 nm) 2. A 500 nm thick layer of oil (n = 1.25) floats on water. What wavelengths of light in the visible range (400 nm to 700 nm) are maximally reflected? (Ans: 417 nm, 625 nm) 3. Athin film of acetone (n = 1.25) coats a thick glass plate (n...
Wave Optics CHAPTER 17 17-5 17.4 Thin-Film Interference oure shows a wave transmitted from air through a thin oil film on water. The film has a kness t oil/2, where Noil is the wavelength of the light while in the oil. 2. The fi nicna n1 1.00 n2 1403 1.33 a. Referring to the indices of refraction shown on the figure, indicate at each boundary with a Y (yes) or N (no) whether the reflected wave undergoes a phase change...
I
I know that the thickness = lambda/(2nsin 30) BUT why?
I've also attached some notes I have!
(Please explain using diagram and words for me to rate
the answer)
We were unable to transcribe this imageThin-Film Interference When light is incident on a thin transparent film, the light waves reflected from the front and back surfaces interfere. For near-normal incidence, the wavelength con ditions for maximum and minimum intensity of the light reflected from a film in air are...
The default setting is a thin film of glass(n = 1.5) with air (n
= 1)on both sides.The starting wavelength is 652 nm and the
starting thickness is 544 nm. Use these starting values for this
next set of questions.
1. Is there a phase shift on the front (left) interface? On the
back (right) interface in the simulation?Justify why there is/isn’t
a phase shift at each interface.
2. How does the wavelength in the film (glass) compare to the...
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