Nano-imprinted subwavelength gratings as polarizing beamsplitters

IF 1.9 4区物理与天体物理 Q3 OPTICS

Journal of the European Optical Society-Rapid Publications Pub Date : 2021-03-24 DOI:10.1186/s41476-021-00149-8

Julian Wüster, Yannick Bourgin, Patrick Feßer, Arne Behrens, Stefan Sinzinger

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引用次数: 4

Abstract

Polarizing beamsplitters have numerous applications in optical systems, such as systems for freeform surface metrology. They are classically manufactured from birefringent materials or with stacks of dielectric coatings. We present a binary subwavelength-structured form-birefringent diffraction grating, which acts as a polarizing beamsplitter for a wide range of incidence angles ?30^°…+30^°. We refine the general design method for such hybrid gratings. We furthermore demonstrate the manufacturing steps with Soft-UV-Nanoimprint-Lithography, as well as the experimental verification, that the structure reliably acts as a polarizing beamsplitter. The experimental results show a contrast in efficiency for TE- and TM-polarization of up to 1:18 in the first order, and 34:1 in the zeroth order. The grating potentially enables us to realize integrated compact optical measurement systems, such as common-path interferometers.

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作为偏振分束器的纳米压印亚波长光栅

偏振分束器在光学系统中有许多应用，如自由曲面测量系统。它们通常是由双折射材料或堆叠的介电涂层制成的。我们提出了一种双折射衍射光栅，它可以作为一个偏振分光器，在30°~ +30°的入射角范围内工作。我们改进了这种混合光栅的一般设计方法。我们进一步展示了软紫外纳米压印光刻的制造步骤，以及实验验证，该结构可靠地充当偏振分束器。实验结果表明，TE-极化和tm -极化的效率在一阶为1:18，在零阶为34:1。该光栅有可能使我们实现集成紧凑的光学测量系统，如共路干涉仪。

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来源期刊

Journal of the European Optical Society-Rapid Publications 物理-光学

CiteScore

2.40

自引率

0.00%

发文量

审稿时长

5 weeks

期刊介绍： Rapid progress in optics and photonics has broadened its application enormously into many branches, including information and communication technology, security, sensing, bio- and medical sciences, healthcare and chemistry. Recent achievements in other sciences have allowed continual discovery of new natural mysteries and formulation of challenging goals for optics that require further development of modern concepts and running fundamental research. The Journal of the European Optical Society – Rapid Publications (JEOS:RP) aims to tackle all of the aforementioned points in the form of prompt, scientific, high-quality communications that report on the latest findings. It presents emerging technologies and outlining strategic goals in optics and photonics. The journal covers both fundamental and applied topics, including but not limited to: Classical and quantum optics Light/matter interaction Optical communication Micro- and nanooptics Nonlinear optical phenomena Optical materials Optical metrology Optical spectroscopy Colour research Nano and metamaterials Modern photonics technology Optical engineering, design and instrumentation Optical applications in bio-physics and medicine Interdisciplinary fields using photonics, such as in energy, climate change and cultural heritage The journal aims to provide readers with recent and important achievements in optics/photonics and, as its name suggests, it strives for the shortest possible publication time.