Broadband and wide-angle antireflection realized by multireflection effect in a micro-∧-shape array

Broadband and wide-angle antireflection realized by multireflection effect in a micro-∧-shape array

Antireflective surfaces are often realized by minimizing the refractive index contrast between the air and substrate using subwavelength microstructures. In this paper, we introduce another kind of geometry-induced antireflective surface using multireflection to suppress reflection to a very low ext...

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Veröffentlicht in:Applied optics (2004) 2013-08, Vol.52 (23), p.5585-5590
Hauptverfasser: Zheng, Bingwei, Huang, Shanshan, Zhai, Chenwei, Wang, Chao, Zhu, Mingwei, Chen, Yanfeng
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container_end_page 5590
container_issue 23
container_start_page 5585
container_title Applied optics (2004)
container_volume 52
creator Zheng, Bingwei
Huang, Shanshan
Zhai, Chenwei
Wang, Chao
Zhu, Mingwei
Chen, Yanfeng
description Antireflective surfaces are often realized by minimizing the refractive index contrast between the air and substrate using subwavelength microstructures. In this paper, we introduce another kind of geometry-induced antireflective surface using multireflection to suppress reflection to a very low extent. This surface is composed of micro-∧-shape array with the wedge size much larger than the wavelength of the incident light. Simulation and experimental results show that the micro-∧-shape array can effectively suppress the reflection within wide incident angles and large wavelength ranges. The enhanced light adsorption caused by the greatly increased light path length within the micro-∧-shape array is responsible for the antireflection phenomena. Such antireflective surface may find various applications, in solar cells, for example.
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title Broadband and wide-angle antireflection realized by multireflection effect in a micro-∧-shape array
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