Characterization and optimization of the low-toxicity nanocomposite photopolymer Biophotopol for holographic couplers

IF 5 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2025-09-30 DOI:10.1016/j.optlastec.2025.113946

J.J. Sirvent-Verdú , J.C. García-Vázquez , J.C. Bravo , J. Ferrández , C. Neipp , S. Gallego , A. Beléndez

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Abstract

In this work, we aim to study and exploit the photosensitivity properties of a low-toxicity photopolymer Biophotopol for the manufacturing of holographic couplers for see-through applications. The different geometries used to record such holographic gratings, both in transmission and reflection schemes, are explained. In our proposal, no prisms or index matching systems are used in the recording geometry, thanks to the wavelength shift between the recording and reconstruction steps. Moreover, the material’s composition is optimized and characterized for different recording schemes. We provide experimental evidence that the holographic optical elements maintain their designed properties by allowing the diffracted beam to propagate under Total Internal Reflection at the Bragg condition. The shrinkage present in this material is overcome by including a cross-linker monomer and Pt nanoparticles, while also increasing the average refractive index modulation of the holograms. This effect also causes the recording light to be coupled within the system, providing a single coupler that can guide different wavelengths.

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用于全息耦合器的低毒性纳米复合光聚合物生物光醇的表征与优化

在这项工作中，我们的目标是研究和开发一种低毒性光聚合物Biophotopol的光敏性，用于制造用于透明应用的全息耦合器。解释了用于记录这种全息光栅的不同几何形状，包括透射和反射方案。在我们的建议中，由于记录和重建步骤之间的波长偏移，在记录几何中没有使用棱镜或索引匹配系统。此外，针对不同的记录方案，对材料的组成进行了优化和表征。我们提供了实验证据，证明全息光学元件在布拉格条件下允许衍射光束在全内反射下传播，从而保持其设计特性。通过加入交联剂单体和铂纳米颗粒来克服这种材料中的收缩，同时也增加了全息图的平均折射率调制。这种效应还导致记录光在系统内耦合，提供一个单一的耦合器，可以引导不同的波长。

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

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems