Highly birefringent terahertz polarization maintaining plastic photonic crystal fibers

Cho, M.; Kim, J.; Park, H.; Han, Ying; Moon, Kiwon; Jung, Eun Jin; Han, Haewook

doi:10.1364/oe.16.000007

Cited by 66 publications

(24 citation statements)

References 19 publications

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“…In terms of state of the art in THz waveguide fabrication, THz hollow-core and solid-core microstructured fibers [5,11,12] have been fabricated by stacking teflon or high density polyethylene capillary tubes. The tubes were stacked to form a two dimensional triangular lattice and then were fused together by either using thin layers of polyethylene film or by heat treatment.…”

Section: Introductionmentioning

confidence: 99%

THz porous fibers: design, fabrication and experimental characterization

Atakaramians¹,

Afshar²,

Ebendorff-Heidepriem³

et al. 2009

Opt. Express

239

111

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Section: Introductionmentioning

confidence: 99%

THz porous fibers: design, fabrication and experimental characterization

Atakaramians¹,

Afshar²,

Ebendorff-Heidepriem³

et al. 2009

Opt. Express

239

111

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“…The porous core structure of the proposed air-core THz fiber can ensure the low loss characteristic for THz guiding. What is more, the proposed elliptical air-core THz fiber exhibits much higher birefringence than the previously reported birefringent THz fibers [9,[15][16] .…”

Section: Introductionmentioning

confidence: 58%

Air-core terahertz fiber with high birefringence

Chen

Hong

2010

SPIE Proceedings

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In this paper, we propose an efficient air-core Terahertz (THz) fiber with high birefringence and low modal absorption loss. The photonic crystal fiber has a triangular-lattice with circular subwavelength air-holes in the microstructured cladding and elliptical subwavelength air-holes in the core. In this structure, the effective index of the core is above that of the cladding, which leads to a better confinement of the field and ensures the low loss characteristic for THz guiding. With elliptical air-holes in the core, the proposed THz fiber exhibits high birefringence. The background medium is the polymer material with low absorption in THz region. The proposed design has been simulated based on the finite element method with anisotropic perfectly matched layers (PML) absorbing boundary condition. Numerical simulations show that with a moderate ellipticity of the elliptical air-holes in the core region, the proposed THz fiber can exhibit high birefringence on a level of 10 -2 in a 0.2THz to 2.0THz frequency range. And the THz fiber's guiding loss caused by material absorption can be reduced effectively by the addition of more air holes in the core region.

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“…Form birefringence was observed in alternatingly stacked structures of two different dielectric materials with sub-wavelength thickness, corresponding to onedimensional photonic crystals, such as two different polymers [59], silicon and air [60], but also for stacks of paper with air gaps in between [61]. Analogously, birefringence was reported for asymmetric hollow-core and polymer fibers [62,63]. Furthermore, polymers reinforced by aligned glass fibers were found to be birefringent [3,4,64] due to the embedded fibers representing sub-wavelength structures along one direction with regard to the relatively large THz wavelengths in the 100 μm range.…”

Section: Birefringence At Thz Frequenciesmentioning

confidence: 87%

Recent Advances in Birefringence Studies at THz Frequencies

Wiesauer

Jördens

2013

J Infrared Milli Terahz Waves

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In the last few years, various studies on terahertz (THz) birefringence have been presented, based on polarization-sensitive THz time-domain spectroscopy. The field of THz birefringence is a wide one covering several aspects, such as different materials exhibiting THz birefringence, polarization-sensitive THz technology, as well as numerous methods for extracting the birefringence properties of a sample from the THz data. Therefore, this paper aims at reviewing recent results on THz birefringence measurements presented in literature, addressing the above aspects and giving an overview of the topic. Moreover, it will focus on the investigation of birefringent fibrous samples, where specific results will be discussed in detail. Altogether, this paper should give a comprehensive view on the recent achievements in the measurements of THz birefringence.

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Highly birefringent terahertz polarization maintaining plastic photonic crystal fibers

Cited by 66 publications

References 19 publications

THz porous fibers: design, fabrication and experimental characterization

THz porous fibers: design, fabrication and experimental characterization

Air-core terahertz fiber with high birefringence

Recent Advances in Birefringence Studies at THz Frequencies

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