Related Experiment Video
Updated: Jun 17, 2026
07:56
A Photonic System for Generating Unconditional Polarization-Entangled Photons Based on Multiple Quantum Interference
Published on: September 5, 2019
Subwavelength orthogonal polarization rotator
1National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan. iwanaga.masanobu@nims.go.jp
Optics Letters
|January 19, 2010
Summary
This study presents a novel subwavelength polarization rotator using metamaterials. The device efficiently rotates light polarization by 90 degrees with high transmittance, offering a compact optical solution.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Polarization control is crucial in optical systems.
- Existing polarization rotators can be bulky or inefficient.
Purpose of the Study:
- To design and present a concrete design for an orthogonal polarization rotator.
- To achieve efficient polarization rotation using subwavelength metamaterials.
Main Methods:
- Utilized a pair of ultrathin metamaterial plates.
- Engineered for transparency and remarkable anisotropy.
Main Results:
- Achieved approximately 90-degree azimuth-angle rotation of linearly polarized light.
- Demonstrated functionality over a wide range of incident angles (0-90 degrees).
- The rotator has 1/4 wavelength thickness and 50% transmittance.
Conclusions:
- The proposed metamaterial rotator is a highly efficient subwavelength optical element.
- Offers a compact and effective solution for polarization control at optical frequencies.
Related Concept Videos
01:01Group Polarization
Group polarization is the strengthening of an original group attitude following the discussion of views within a group (Teger & Pruitt, 1967). That is, if a group initially favors a viewpoint, after discussion the group consensus is likely a stronger endorsement of the viewpoint. Conversely, if the group was initially opposed to a viewpoint, group discussion would likely lead to stronger opposition.
01:27Polar Coordinates: Problem Solving
Directional radiation patterns are central to antenna analysis, as they illustrate how signal strength varies with direction. These patterns are often modeled using polar plots, where the radial distance from the origin represents signal intensity at a given angle. A commonly used idealized form is the four-lobed rose curve, which captures the concept of directional beams in a simplified mathematical form.The four-lobed rose curve, described by r = cos(2θ), features four symmetric lobes, each...
01:24Polar Coordinates
The polar coordinate system offers an alternative to the Cartesian coordinate system for specifying points in a plane, using a distance and an angle instead of x and y coordinates. This system is particularly advantageous in situations involving circular or rotational symmetry, such as in physics or engineering problems involving waves, oscillations, or orbital paths.Defining Polar CoordinatesIn polar coordinates, a point is represented as P(r, ��), where r is the radial distance from a fixed...
01:30Polar Coordinate System
The polar coordinate system provides a natural way to describe points in the plane when distances and directions are more meaningful than horizontal and vertical displacements. It is especially useful for modeling non-rectangular regions such as circles and spirals, where symmetry about a center point is easier to express than it is in a rectangular grid. A familiar example is a ship’s plan position indicator, which marks detected targets as dots positioned relative to the ship at the display’s...
01:22Polar and Cylindrical Coordinates
The Cartesian coordinate system is a very convenient tool to use when describing the displacements and velocities of objects and the forces acting on them. However, it becomes cumbersome when we need to describe the rotation of objects. So, when describing rotation, the polar coordinate system is generally used.
02:24Properties of Enantiomers and Optical Activity
It is essential to understand the difference between chiral and achiral interactions and the implications thereof in optical activity and their applications. Just as our feet, which are chiral, interact uniquely with chiral objects, such as a pair of shoes, but identically with achiral socks, enantiomers of a molecule exhibit different properties only when they interact with other chiral media. An example of a significant implication from this facet is the phenomenon known as optical activity,...