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Las rejillas de fibra quiral
Victor I Kopp1, Victor M Churikov, Jonathan Singer
1Chiral Photonics, Inc., Clifton, NJ 07012, USA. vickopp@chiralphotonics.com
Science (New York, N.Y.)
|July 3, 2004
Resumen
Los investigadores crearon rejillas quirales en las fibras ópticas girándolas. Estas nuevas rejillas exhiben una transmisión selectiva de polarización, lo que permite aplicaciones en filtros ópticos afilados o anchos.
Área de la Ciencia:
- Óptica y Fotónica.
- Ciencia de los materiales Ciencia de los materiales.
Sus antecedentes:
- Las estructuras quirales exhiben propiedades ópticas únicas.
- Las fibras ópticas son plataformas versátiles para dispositivos fotónicos.
Objetivo del estudio:
- Para fabricar y caracterizar rejillas quirales en fibras ópticas.
- Para investigar las propiedades de transmisión selectiva de polarización de estas rejillas.
Principales métodos:
- La producción de rejillas quirales mediante la torsión de fibras ópticas de vidrio con núcleos no circulares a través de un horno en miniatura.
- Observando la transmisión selectiva por polarización en fibras con distancias de decenas de micrómetros.
Principales resultados:
- Diferenciado dos modos de interacción óptica en rejillas quirales.
- Se observaron caídas de transmisión en rejillas quirales de largo período debido a la dispersión en modos de revestimiento.
- Se observó una amplia banda de dispersión en rejillas quirales de período intermedio.
Conclusiones:
- Las rejillas quirales en las fibras ópticas demuestran una transmisión selectiva por polarización.
- Estas rejillas pueden ser diseñadas para funcionar como filtros selectivos de polarización agudos o amplios.
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