Ultrafast broadband optical modulation in indium tin oxide/titanium dioxide 1D photonic crystal

IF 1.9 4区物理与天体物理 Q3 OPTICS

Journal of the European Optical Society-Rapid Publications Pub Date : 2022-05-19 DOI:10.1051/jeos/2022009

L. Moscardi, S. Varas, A. Chiasera, F. Scotognella, M. Guizzardi

引用次数: 1

Abstract

Photonic crystals can integrate plasmonic materials such as indium tin oxide in their structure. Exploiting indium tin oxide plasmonic properties, it is possible to tune the photonic band gap of the photonic crystal upon the application of an external stimuli. In this work, we have fabricated a one-dimensional multilayer photonic crystal alternating indium tin oxide and titanium dioxide via radiofrequency sputtering and we have triggered its optical response with ultrafast pump-probe spectroscopy. Upon photoexcitation, we observe a change in the refractive index of indium tin oxide. Such an effect has been used to create a photonic crystal that changes its photonic bandgap in an ultrafast time scale. All optical modulation in the visible region, that can be tuned by designing the photonic crystal, has been demonstrated.

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氧化铟锡/二氧化钛一维光子晶体的超快宽带光调制

光子晶体可以在其结构中集成等离子体材料，如氧化铟锡。利用氧化铟锡的等离子体特性，可以在外部刺激的作用下调节光子晶体的光子带隙。本文采用射频溅射法制备了一种一维多层氧化铟锡与二氧化钛交变光子晶体，并利用超快泵浦探测光谱触发了其光响应。在光激发下，我们观察到氧化铟锡的折射率发生了变化。这种效应已经被用来制造一种光子晶体，在超快的时间尺度上改变其光子带隙。在可见光区域的所有光调制，可以通过设计光子晶体调谐，已经证明。

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

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.