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Radiación sincrotrón de un pulso de luz acelerado

M Henstridge^1,2, C Pfeiffer^1,3, D Wang^1,4

¹Center for Photonics and Multiscale Nanomaterials, University of Michigan, Ann Arbor, 48109, USA.

Science (New York, N.Y.)

|October 27, 2018

Resumen

Los investigadores generaron radiación sincrotrón utilizando una meta-superficie y un pulso subpicosegundo dentro de un cristal no lineal. Este nuevo método crea radiación de terahertz en una escala microscópica, allanando el camino para fuentes compactas de terahertz en el chip.

Área de la Ciencia:

La física
Ciencias de los materiales
Óptica

Sus antecedentes:

La radiación de sincrotrón generalmente es producida por electrones de alta energía en grandes aceleradores.
Generar radiación sincrotrón en una escala más pequeña es un desafío, pero deseable para aplicaciones miniaturizadas.

Objetivo del estudio:

Para demostrar un nuevo método para generar radiación sincrotrón utilizando una meta-superficie.
Para explorar la producción de radiación de frecuencia de terahercios desde una trayectoria circular a microescala.

Principales métodos:

Utilizó una meta-superficie para doblar la luz, creando una trayectoria circular a microescala para un pulso subpicosegundo dentro de un cristal no lineal.
Analizó la radiación electromagnética emitida por esta trayectoria a microescala.

Principales resultados:

Generó con éxito radiación sincrotrón de un pulso subpicosegundo moviéndose a lo largo de un arco circular de 100 micrómetros.
La radiación emitida estaba en el rango de frecuencias de terahercios, impulsada por la polarización no lineal.

Conclusiones:

La generación a microescala de radiación de sincrotrón es factible utilizando metasuperficies y cristales no lineales.
Esta técnica ofrece un camino prometedor hacia el desarrollo de fuentes compactas de terahercios en el chip.

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