Holographic solar concentrator with wide band using multi-wavelength transmission grating

IF 3.1 3区物理与天体物理 Q2 Engineering

Optik Pub Date : 2024-10-29 DOI:10.1016/j.ijleo.2024.172106

Hui-Ying Wu , Chang-Won Shin , Ki-Chul Kwon , Kwon-Yeon Lee , Sang-Keun Gil , Nam Kim

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引用次数: 0

Abstract

A multi-wavelength holographic grating using photopolymer is presented for a holographic solar concentrator system. Currently, volume holographic optical elements (HOEs) have been proposed for application in solar concentrators due to their advantages, such as lightweight, selective wavelength, and passive tracking. However, their efficiency depends on the central wavelength, which is determined by both the recording material and the recording angle. In this work, a transmission holographic grating with multiple wavelengths is proposed to enhance the performance of holographic solar concentrator systems. The diffraction efficiency and spectral range are significant factors in determining the concentrated efficiency of solar energy. The optimal efficiency of transmission grating is derived based on the optical characteristics of the photopolymer and the wavelength selectivity is then analyzed to compare the concentrated efficiency. The experimental results indicate that the dichromatic transmission grating with an average diffraction efficiency of 70 % and a wavelength band of 278 nm has a concentrated efficiency of 48.7 %. Compared to monochromatic and trichromatic holographic grating, dichromatic grating can concentrate more energy with a wider spectral band.

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使用多波长透射光栅的宽带全息太阳能聚光器

本文介绍了一种用于全息太阳能聚光器系统的光聚合物多波长全息光栅。目前，体积全息光学元件（HOE）因其重量轻、可选择波长和被动跟踪等优点，已被建议应用于太阳能聚光器中。然而，它们的效率取决于中心波长，而中心波长由记录材料和记录角度决定。本研究提出了一种具有多个波长的透射全息光栅，以提高全息太阳能聚光器系统的性能。衍射效率和光谱范围是决定太阳能聚光效率的重要因素。根据光聚合物的光学特性推导出透射光栅的最佳效率，然后分析波长选择性，比较聚光效率。实验结果表明，平均衍射效率为 70 %、波长带为 278 nm 的二色透射光栅的聚光效率为 48.7 %。与单色全息光栅和三基色全息光栅相比，二基色光栅能以更宽的光谱带集中更多的能量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Optik 物理-光学

CiteScore

6.90

自引率

12.90%

发文量

1471

审稿时长

46 days

期刊介绍： Optik publishes articles on all subjects related to light and electron optics and offers a survey on the state of research and technical development within the following fields: Optics: -Optics design, geometrical and beam optics, wave optics- Optical and micro-optical components, diffractive optics, devices and systems- Photoelectric and optoelectronic devices- Optical properties of materials, nonlinear optics, wave propagation and transmission in homogeneous and inhomogeneous materials- Information optics, image formation and processing, holographic techniques, microscopes and spectrometer techniques, and image analysis- Optical testing and measuring techniques- Optical communication and computing- Physiological optics- As well as other related topics.