Transmission of terahertz radiation using a microstructured polymer optical fiber

Ponseca, Carlito S.; Pobre, Romeric; Estacio, Elmer; Sarukura, Nobuhiko; Argyros, Alexander; Large, M. I.; Eijkelenborg, Martijn A. van

doi:10.1364/ol.33.000902

Cited by 108 publications

(52 citation statements)

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“…No fiber drawing was required for these THz waveguides since the dimension achieved by stacking was suited for THz guidance. Another approach proposed for fabrication of a THz solid-and hollow-core microstructured polymer waveguides [6,13] was drilling the hole pattern into a 60-70 mm diameter of polymer preform using a computer controlled mill, and drawing the preform down to 6 mm diameter fiber.…”

Section: Introductionmentioning

confidence: 99%

THz porous fibers: design, fabrication and experimental characterization

Atakaramians¹,

Afshar²,

Ebendorff-Heidepriem³

et al. 2009

Opt. Express

238

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

238

111

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“…The hollow-core fiber (solid black curve) has a four-ring cladding and confines the field poorly to the core. A fourring fiber with the given pitch would result in a 3 mm thin fiber, half the thickness of the previously reported Bragg fiber [5].…”

mentioning

confidence: 80%

“…A four-ring fiber with the given pitch of 250 μm could be as thin as 3 mm in diameter. This fiber is realistically manufacturable and would be half the thickness of the only previous experimentally reported bandgap fiber [5] and, with a loss of 0:25 dB=cm, have four times lower loss.…”

mentioning

confidence: 99%

“…Terahertz waveguides have consequently also attracted attention, both for distributing the radiation and as functional devices [2]. Apart from hollow metallic and glass waveguides [3,4], the material of choice when making terahertz waveguides is polymer, i.e., poly(methyl-methacrylate) (PMMA) [5], Teflon [6], high-density polyethylene (HDPE) [7,8], and Topas [9]. The reasons for this material choice are that polymers have the lowest loss of most materials in the THz range and they are for the most part easy to machine.…”

mentioning

confidence: 99%

“…Of these, the hollow-core fiber is the least sensitive to outside perturbations, and thus the fiber can be handled without altering the propagation properties. Hollow-core fibers come in different designs, such as the simple tube waveguide (loss 0:95 dB=m) [3], the antiresonance waveguide (loss <0:0434 dB=cm) [12], the Bragg fiber (loss 0:9 dB=cm) [5], and the hollow-core bandgap fiber (loss 1 dB=m) [13,14]. The bandgap fibers are typically designed using a tightly packed triangular structure in which the holes are highly inflated to give a high air fill fraction.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Porous-core honeycomb bandgap THz fiber

et al. 2011

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Silk Foam Terahertz Waveguides

Guerboukha

Yan

Skorobogata

2014

Advanced Optical Materials

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ancient material has been introduced into biomedical fi eld as a promising biomaterial which opened a new era in the development of optical interfaces and sensors for biomedical applications. Silk material from worm cocoon can be processed into different forms, such as spheres, sponges, fi bers, [13][14][15] foams [ 16 ] and fi lms. [ 4,9,11,12 ] Among these various forms, silk fi lms attracted signifi cant attention for applications in optics and photonics, due to high transparency (>95%) and excellent surface fl atness of such fi lms. As a result, a great variety of optical devices has been fabricated using silk fi lms. For example, silk-based diffractive gratings have been fabricated by casting silk solution onto polydimethylsiloxane (PDMS) negative molds. Silk lenses, microlens arrays and 64-phase level 2D diffraction masks were realized using molding technique. [ 4,17 ] Doped fl uorescent silk-protein fi lms with a two-dimensional square lattice of air holes were proposed and demonstrated to achieve enhancement in fl uorescent emission. [ 18 ] Active optical optofl uidic pH sensor were realized by chemical modifi cation of the silk protein fi lms with 4-aminobenzoic and by combining the elastomer in a single microfl uidic device. [ 19 ] Although many silk-based optical devices have been demonstrated, most of them operate in the visible region. [ 4,5,11,[17][18][19] Recently, the growing demand for THz waveguides and sensors for non-destructive sensing in biomedicine and agriculture is motivating silk material research in THz region. In 2010, split ring resonator-based metamaterials using silk fi lms as a substrate were demonstrated. [ 20 ] The authors also showed that silk is semi-transparent in the 0.15-1.5 THz region, having a relatively high loss of ∼15 cm −1 at 0.3 THz. In 2012, the same group demonstrated conformal, adhesive, edible food sensors [ 21 ] based on the THz metamaterials on silk substrates. By monitoring the antenna resonant response that changes continuously during the food storage, the authors have demonstrated potential of this technology for monitoring changes in the food quality.To the best of our knowledge, up to date, there were no reports of using silk to fabricate THz waveguides. This, most probably, is related to the high absorption loss of silk in the THz spectral region. Indeed, bulk absorption loss of silk is almost hundred times larger than the bulk absorption loss of polyethylene (∼0.2 cm −1 at 0.3 THz), which is often used for fabrication of THz fi bers. [22][23][24] At the same time, low-loss, lowdispersion waveguides for delivery of THz light is an important

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Transmission of terahertz radiation using a microstructured polymer optical fiber

Cited by 108 publications

References 10 publications

THz porous fibers: design, fabrication and experimental characterization

THz porous fibers: design, fabrication and experimental characterization

Porous-core honeycomb bandgap THz fiber

Silk Foam Terahertz Waveguides

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