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Updated: Jun 13, 2026

Imaging Plasma Membrane Deformations With pTIRFM

Imaging Plasma Membrane Deformations With pTIRFM

Published on: April 2, 2014

Polarized infrared emission using frequency selective surfaces.

James Ginn¹, David Shelton, Peter Krenz

¹University of Central Florida, CREOL - The College of Optics and Photonics, 4000 Central Florida Blvd, Orlando, FL 32816, USA. jcginn@creol.ucf.edu

|April 15, 2010

Summary

Researchers developed novel emission frequency selective surfaces (eFSS) for tailored thermal emission. These surfaces enable control over polarization, leading to applications in advanced optical technologies.

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Area of Science:

Optics and Photonics
Electromagnetism
Materials Science

Background:

Frequency selective surfaces (FSS) are periodic structures that interact with electromagnetic waves.
Controlling thermal emission properties, particularly polarization, is crucial for various optical applications.
Existing methods for polarization-sensitive emission often face limitations in fabrication and efficiency.

Purpose of the Study:

To design and characterize novel emission frequency selective surfaces (eFSS) for polarization-controlled thermal emission.
To demonstrate the feasibility of creating both linearly and circularly polarized thermal emission using eFSS.
To explore the underlying electromagnetic principles governing polarization sensitivity in eFSS.

Main Methods:

Fabrication of periodic arrays of resonant antenna structures (dipole and tripole elements) above a ground plane.
Utilizing coupling and symmetry properties of eFSS to engineer emission characteristics.
Experimental measurement and analysis of polarization contrast and coherence of thermal emission.

Main Results:

Demonstrated high polarization contrast patterns for linearly polarized thermal emission using dipole arrays.
Achieved circularly polarized thermal emission by employing asymmetrical tripole elements.
Confirmed the maintenance of coherence between orthogonal current modes and the introduction of necessary phase delay for circular polarization.

Conclusions:

Emission frequency selective surfaces (eFSS) offer a viable platform for generating polarization-controlled thermal radiation.
The design of antenna elements (dipole vs. asymmetrical tripole) dictates the polarization state (linear vs. circular) of the emitted thermal radiation.
This work paves the way for advanced optical components with tunable thermal emission properties.