# What is the relationship between angle and polarization in modern optics?

• Duboo
In summary, modern optics is the study of light and its properties, including its interactions with matter and use in technologies. Recent advancements in technology have greatly advanced the field, allowing for new materials and techniques to manipulate and control light. Some real-world applications of modern optics include telecommunications, medical imaging, and renewable energy. Compared to classical optics, modern optics incorporates principles of quantum mechanics and focuses on microscopic observations. Current research topics in modern optics include new lens and imaging systems, the use of light in quantum computers, and exploring applications in medicine and renewable energy.
Duboo
Homework Statement
Problem 2.18 is what I want to know. I think I have to use equation (eq 2.72) about phase difference in TIR, but , I'm not sure because n=1.65 so it's complicate..
Relevant Equations
At picture

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Which part is unclear?
From geometry you can relate the angle at A to the angle for the reflection. From the condition that linearly polarized light becomes circular polarized light you can calculate the phase difference ##\Delta## you need. You don't need to solve for the angle here luckily, you just need to show that the given value makes the equation correct.

## 1. What is modern optics?

Modern optics is a branch of physics that deals with the behavior and properties of light, including its interactions with matter and other electromagnetic phenomena. It encompasses a range of topics such as geometric optics, wave optics, and quantum optics.

## 2. How is modern optics used in everyday life?

Modern optics has many practical applications in everyday life. Some examples include cameras, glasses and contact lenses, laser printers, and optical fibers used in telecommunications. It also plays a crucial role in fields such as medicine, astronomy, and engineering.

## 3. What are some recent advancements in modern optics?

In recent years, there have been many advancements in modern optics, including the development of new materials with unique optical properties, the creation of ultrafast lasers, and the use of adaptive optics to improve the clarity of astronomical images. Other notable advancements include the use of metamaterials for controlling light, and the development of optical computing for faster processing speeds.

## 4. How does modern optics relate to other sciences?

Modern optics is a highly interdisciplinary field, with connections to many other branches of science. It overlaps with physics, chemistry, engineering, and materials science, among others. Optics also has applications in fields such as biology and medicine, where it is used in techniques like microscopy and imaging.

## 5. What are the potential future developments in modern optics?

The future of modern optics looks very promising, with ongoing research and development in areas such as nanophotonics, quantum information processing, and biophotonics. Other potential developments include the use of optics in renewable energy technologies, advances in optical computing, and the creation of new materials with unique optical properties.

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