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Fabrication of Zero Mode Waveguides for High Concentration Single Molecule Microscopy

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Composite THz materials using aligned metallic and semiconductor microwires, experiments and interpretation.

Anna Mazhorova¹, Jian Feng Gu, Alexandre Dupuis

¹École Polytechnique de Montréal, Génie Physique, Québec, Canada.

|December 18, 2010

Summary

This summary is machine-generated.

We developed a novel fabrication method for composite metamaterials using aligned metallic or semiconductor microwires. These materials exhibit unique terahertz (THz) properties, including polarization control and tunable refractive indices.

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Area of Science:

Materials Science
Optics and Photonics
Terahertz (THz) Technology

Background:

Metamaterials offer unique electromagnetic properties not found in natural materials.
Fabrication of ordered microwire structures is crucial for advanced metamaterial applications.
Terahertz (THz) spectroscopy is a powerful tool for characterizing material properties in this frequency range.

Purpose of the Study:

To report a fabrication method for composite films with aligned metallic or chalcogenide microwires.
To characterize the terahertz (THz) transmission properties of these composite metamaterials.
To investigate the challenges in fabricating sub-micrometer metallic microwires.

Main Methods:

Stack-and-draw fiber fabrication technique for creating microwire arrays.
Co-drawing of metals/semiconductors with polymers.
Terahertz (THz) characterization using Fourier Transform Infrared Spectroscopy (FTIR) and Terahertz Time-Domain Spectroscopy (TDS).
Transfer matrix theory for retrieving complex refractive index.

Main Results:

Metallic microwire composites demonstrate strong polarizing properties.
Chalcogenide microwire composites show polarization independence and designable high refractive index.
Fabrication challenges include phase separation and nano-grid formation for sub-micrometer metallic wires.

Conclusions:

The stack-and-draw method is effective for fabricating THz metamaterials with tunable properties.
Metallic and semiconductor microwire composites offer distinct functionalities for THz applications.
Further refinement is needed to overcome fabrication limitations for nanoscale metallic structures.