Low loss porous terahertz fibers containing multiple subwavelength holes

Journal Article · Mon Feb 18 00:00:00 EST 2008 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.2840164· OSTI ID:21016346

Hassani, Alireza; Dupuis, Alexandre; Skorobogatiy, Maksim ^[1]

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1. Engineering Physics Department, Ecole Polytechnique de Montreal, C.P. 6079, succursale Centre-Ville Montreal, Quebec H3C3A7 (Canada)

We propose a porous polymer terahertz fiber with a core composed of a hexagonal array of subwavelength air holes. Numerical simulations show that the larger part of guided power propagates inside the air holes within the fiber core, resulting in suppression of the bulk absorption losses of the core material by a factor of {approx}10-20. Confinement of terahertz power in the subwavelength holes greatly reduces effective refractive index of the guided mode but not as much as to considerably increase modal radiation losses due to bending. As a result, tight bends of several centimeter bending radii can be tolerated.

• OSTI ID: 21016346
• Journal Information: Applied Physics Letters, Vol. 92, Issue 7; Other Information: DOI: 10.1063/1.2840164; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
36 MATERIALS SCIENCE
ABSORPTION
AIR
CONFINEMENT
ELECTROMAGNETIC RADIATION
FIBERS
POLYMERS
POROUS MATERIALS
REFRACTIVE INDEX
SIMULATION
THZ RANGE
WAVE PROPAGATION