Hollow-core infrared fiber incorporating metal-wire metamaterial.
Opt Express
; 17(17): 14851-64, 2009 Aug 17.
Article
em En
| MEDLINE
| ID: mdl-19687964
ABSTRACT
Infrared (IR) light is considered important for short-range wireless communication, thermal sensing, spectroscopy, material processing, medical surgery, astronomy etc. However, IR light is in general much harder to transport than optical light or microwave radiation. Existing hollow-core IR waveguides usually use a layer of metallic coating on the inner wall of the waveguide. Such a metallic layer, though reflective, still absorbs guided light significantly due to its finite Ohmic loss, especially for transverse-magnetic (TM) light. In this paper, we show that metal-wire based metamaterials may serve as an efficient TM reflector, reducing propagation loss of the TM mode by two orders of magnitude. By further imposing a conventional metal cladding layer, which reflects specifically transverse-electric (TE) light, we can potentially obtain a low-loss hollow-core fiber. Simulations confirm that loss values for several low-order modes are comparable to the best results reported so far.
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En
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Opt Express
Assunto da revista:
OFTALMOLOGIA
Ano de publicação:
2009
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Article
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Dinamarca
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EEUU
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ESTADOS UNIDOS
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EUA
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UNITED STATES
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USA