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Manipulaciones topológicas longitudinales de campos de vórtices a través de arreglos espirales anidados
Ying Wang1, Jianmin Wu1, Li Ma1,2
1Department of Physics, Changzhi University, Changzhi 046011, China.
iScience
|December 30, 2025
Resumen
Este estudio explora cómo cambian los haces de vórtices a lo largo de su trayectoria, revelando una disminución escalonada en su carga topológica. Esta investigación avanza en las tecnologías de momento angular orbital y las pinzas ópticas para la manipulación de micropartículas.
Área de la Ciencia:
- Óptica y Fotónica
- Interacciones Luz-Materia
- Ciencia de la Información Óptica
Sus antecedentes:
- Los haces de vórtices poseen frentes de onda de fase helicoidal, mostrando potencial en la ciencia de la información óptica y las interacciones luz-materia.
- La investigación existente examina principalmente las propiedades transversales estáticas, descuidando la dinámica longitudinal.
Objetivo del estudio:
- Investigar sistemáticamente la evolución longitudinal de los haces de vórtices.
- Establecer un marco teórico para la propagación y caracterización de campos de vórtices longitudinales.
Principales métodos:
- Se construyó un arreglo espiral anidado con cargas topológicas distribuidas gradualmente.
- Se empleó la modulación del frente de onda y la regulación paramétrica de la carga topológica.
- Se realizaron simulaciones numéricas para analizar las características de propagación del haz.
Principales resultados:
- Se observó una mejora de la intensidad dependiente de la propagación y una atenuación posterior.
- Se confirmó que la fase mantiene la simetría rotacional azimutal durante la propagación.
- Se demostró una disminución escalonada en la carga topológica proporcional al número de arreglos espirales.
Conclusiones:
- El mecanismo de modulación de vórtices multidimensionales proporciona una base teórica para la multiplexación del momento angular orbital.
- Este trabajo apoya el desarrollo de sistemas avanzados para la manipulación de micropartículas en pinzas ópticas.
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