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Published on: October 18, 2012
Transmission of terahertz radiation using a microstructured polymer optical fiber
Carlito S Ponseca1, Romeric Pobre, Elmer Estacio
1Institute for Molecular Science, 38 Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan. carlito@ims.ac.jp
Optics Letters
|May 3, 2008
Summary
This study analyzed terahertz (THz) wave propagation in hollow-core microstructured polymer optical fibers. Results show low propagation losses, suggesting potential for THz applications.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Microstructured polymer optical fibers offer unique light guiding properties.
- Terahertz (THz) technology requires efficient wave propagation methods.
Purpose of the Study:
- To analyze terahertz wave propagation characteristics in hollow-core microstructured polymer optical fibers.
- To investigate guidance mechanisms and propagation losses in these novel waveguides.
Main Methods:
- Spectral analysis of time-domain terahertz data.
- Experimental transmission measurements across different waveguide sizes.
- Finite-difference time-domain (FDTD) numerical simulations.
Main Results:
- Terahertz waves propagated in both hollow-core and microstructured cladding with a ~20 ps time delay.
- Transmission band shifts indicated photonic bandgap or resonant guidance.
- FDTD calculations showed good agreement with experimental results.
- Estimated propagation losses as low as 0.9 dB/cm.
Conclusions:
- Hollow-core microstructured polymer optical fibers support terahertz wave propagation.
- The observed guidance mechanisms are consistent with photonic bandgap or resonant effects.
- Low propagation losses demonstrate the potential of these fibers for terahertz applications.
