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Cristales fotónicos tridimensionales completos de brecha de banda en longitudes de onda cercanas al infrarrojo
1Department of Electronic Science and Engineering, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto 606-8501, Japan. Electrotechnical Laboratory, Agency of Industrial Science and Technology (AIST), Ministry of International Trade and Industry (
Science (New York, N.Y.)
|August 1, 2000
Resumen
Los investigadores fabricaron un cristal fotónico 3D con una brecha de banda completa en longitudes de onda ópticas. Esta avanzada estructura de semiconductores logró un 99,99% de reflexión, allanando el camino para los circuitos ópticos compactos.
Área de la Ciencia:
- La optoelectrónica es la óptica electrónica.
- Ciencia de los materiales Ciencia de los materiales.
- Nanotecnología La nanotecnología es la nanotecnología.
Sus antecedentes:
- Los cristales fotónicos ofrecen propiedades únicas de manipulación de la luz.
- Lograr una brecha de banda fotónica tridimensional completa en longitudes de onda de comunicación óptica es crucial para los dispositivos ópticos avanzados.
- Se requieren técnicas de fabricación precisas para crear complejas estructuras cristalinas fotónicas.
Objetivo del estudio:
- Para fabricar una estructura de cristal artificial que exhibiera una banda fotónica tridimensional completa.
- Para lograr este efecto de brecha de banda en longitudes de onda de comunicación óptica.
- Explorar el potencial para crear circuitos integrados ópticos ultrapequeños utilizando esta tecnología.
Principales métodos:
- Fabricación de un cristal fotónico por el apilamiento de rayas de semiconductores.
- Se utilizó un período de 0,7 micrómetros para las rayas de los semiconductores.
- Se logró una alta precisión (30 nanómetros) utilizando una avanzada técnica de fusión de obleas.
Principales resultados:
- Se fabricó con éxito una estructura cristalina fotónica 3D.
- Demostró un efecto de brecha de banda fotónica tridimensional completo en longitudes de onda de comunicación óptica.
- Se logró un efecto de brecha de banda superior a 40 decibelios (99,99% de reflexión).
Conclusiones:
- La exitosa fabricación y demostración de una brecha de banda fotónica 3D son logros significativos.
- La alta reflexión obtenida indica la efectividad de la estructura fabricada.
- Este resultado fomenta el desarrollo de circuitos integrados ópticos ultrapequeños con guías de onda de cristal fotónico 3D.
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