Optimizing Polymer Coating Thickness for Reflectivity at 500 nm Wavelength?

In summary, minimum thickness in optics refers to the thinnest possible thickness of a lens or other optical element while maintaining its optical properties. It is important because it affects performance and cost, and is determined by factors such as refractive index and manufacturing processes. There is a limit to how thin an optical element can be made, and while it may increase the cost of the system, it can also reduce overall cost and improve efficiency.
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Homework Statement


A polymer coating has a n=1.30 and a base of n=1.50. What is the minimum thickness of the coating to reflect 500 nm least strongly?


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The Attempt at a Solution

 
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1. What is minimum thickness in optics?

Minimum thickness in optics refers to the thinnest possible thickness that a lens or other optical element can have while still maintaining its desired optical properties. It is an important consideration in the design and manufacturing of optical systems.

2. Why is minimum thickness important in optics?

Minimum thickness is important because it affects the performance and cost of optical systems. A thinner lens can reduce the weight and size of the system, making it more compact and portable. It also allows for more flexibility in the design of the system and can improve its optical performance.

3. How is minimum thickness determined in optics?

Minimum thickness is determined by the refractive index of the material used for the lens or other optical element, as well as the desired optical properties such as focal length and aberrations. It can also be affected by the type of manufacturing process used and the tolerances allowed.

4. Can minimum thickness be reduced indefinitely?

No, there is a limit to how thin an optical element can be made while still maintaining its desired properties. This is due to the physical properties of light and the material being used, such as its ability to transmit and bend light without causing distortions.

5. How does minimum thickness affect the cost of optical systems?

In general, thinner optical elements require more precise manufacturing processes and higher quality materials, which can increase the cost of the system. However, a thinner lens can also reduce the overall cost of the system by reducing the amount of materials needed and making it more lightweight and efficient.

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